Deodorizing composition for food and beverage producing line

Abstract

To provide a deodorizing composition for a food and beverage producing line capable of responding to various flavors, capable of simultaneously performing washing and deodorization by adding a deodorizing composition simultaneously in an acid or alkali washing step, further less in foaming when treating factory waste water.SOLUTION: The present invention provides a deodorizing composition for food and beverage production lines, comprising: (A) a branched-chain alcohol alkoxylate having a cloud point below 50°C as a component, wherein the branched-chain alcohol alkoxylate contains two oxyalkylene groups selected from oxyethylene, oxypropylene, and oxybutylene groups, and includes a branched-chain alkyl group having 6 to 20 carbon atoms; (B) an alcohol alkoxylate as a component, having an HLB value calculated by the Griffin method of 16 to 20, wherein the alcohol alkoxylate contains oxyalkylene groups selected from oxyethylene and oxypropylene groups, and includes a linear or branched-chain alkyl group having 8 to 22 carbon atoms; (C) a water-soluble solvent as a component; (D) an aromatic sulfonic acid or its salt as a component (D); and (E) water as a component.SELECTED DRAWING: None

Description

[Technical Field]

[0001] The present invention relates to a deodorizing composition for use in food and beverage production lines, which is used to deodorize production facilities and production equipment in food and beverage factories and the like. [Background technology]

[0002] In food and beverage manufacturing plants, where a variety of different products are manufactured on the same production line, it is necessary to clean the production line every time a new product is changed to prevent contamination with the previous product remaining on the line. Food and beverage manufacturing plants use CIP (Cleaning in Place) cleaning, which cleans the inside of manufacturing equipment and machinery in its original state without disassembling it. In CIP cleaning, a cleaning solution is circulated or sprayed inside the manufacturing equipment, etc., but flavor odors tend to adhere and remain on the packing (seal) of the piping connections, and thorough cleaning is required to fully remove the flavor odor, which requires a great deal of effort. In particular, in recent years, the number of types of products being manufactured has increased, and the frequency of product changeover has also increased, requiring increased production speed for each product. However, in order to adequately remove the diversifying flavor odors, long cleaning and deodorization work is required, which is causing a significant decrease in productivity.

[0003] Instead of CIP cleaning, there is also the method of disassembling and cleaning the manufacturing equipment, but disassembling and reassembling the equipment every time the manufactured product is changed is labor-intensive and unrealistic. In addition, even if the equipment is disassembled, it is not easy to completely remove the flavor odor that adheres to the packing parts, for example, by cleaning.

[0004] Conventionally, in order to remove flavor odors adhering to production lines in food factories, beverage factories, etc., methods have been adopted in which the production lines are treated with acidic and / or alkaline cleaning agents, or the lines are cleaned with acidic or alkaline cleaning agents and then deodorized using oxidizing agents such as sodium hypochlorite, peracetic acid, percarbonate, or perborate. However, these methods do not always provide sufficient deodorizing effects. In light of this situation, various deodorizing compositions have been proposed, including a deodorizing composition for CIP cleaning containing a specific nonionic surfactant such as a polyoxyalkylene fatty acid ester as the main component (see Patent Document 1 below); a deodorizing composition for CIP containing (A) a specific nonionic surfactant having an HLB value of 8 to 18, (B) a nonionic surfactant with an HLB value of less than 8, (C) a water-soluble solvent with an SP value of more than 9 at 25°C, and (D) water (see Patent Document 2 below); and a deodorizing composition for food and beverage production lines containing (A) a specific ether ester-type nonionic surfactant, (B) a polyoxyalkylene alkyl ether, (C) an aromatic compound, (D) a glycol-based solvent and / or a glycol ether-based solvent, and (E) water (see Patent Document 3 below). [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2003-49193 [Patent Document 2] Japanese Patent Application Laid-Open No. 2007-262258 [Patent Document 3] Patent Publication No. 2021-161395 Summary of the Invention [Problem to be solved by the invention]

[0006] However, although the deodorizing composition of Patent Document 1 has good foam-inhibiting properties and deodorizing effects, it does not have sufficient storage stability, and when used in combination with an acid or alkali, the deodorizing effects may be reduced. For this reason, it has been difficult to use the composition simultaneously in the acid cleaning step or alkali cleaning step of CIP cleaning to shorten the time for the CIP cleaning and deodorizing steps. Furthermore, the deodorizing composition of Patent Document 2 does not address multiple flavor odors, and is not particularly effective against citrus flavor odors. Furthermore, the deodorizing composition described in Patent Document 2 cannot be added simultaneously with the alkaline cleaning step, and therefore cannot be used in one step. The deodorizing composition of Patent Document 3 is compatible with a variety of flavors and can be added simultaneously to the acid or alkali cleaning process, allowing for a one-stop process. However, it causes excessive foaming when the factory wastewater is discharged, which can reduce wastewater treatment capacity and cause environmental pollution.

[0007] Therefore, an object of the present invention is to provide a deodorizing composition for food and beverage production lines that can be used with a variety of flavors, can be added to an acid or alkali cleaning process to perform cleaning and deodorization simultaneously, and produces little foaming during industrial wastewater treatment. [Means for solving the problem]

[0008] In order to solve the above problems, the present inventors have conducted extensive research and have found that The inventors have found that the above-mentioned problems can be solved by a deodorizing composition for food and beverage production lines, which comprises as component (A) a branched-chain alcohol alkoxylate having a cloud point of less than 50°C, wherein the branched-chain alcohol alkoxylate contains two oxyalkylene groups selected from oxyethylene, oxypropylene, and oxybutylene groups, and contains a branched alkyl group having 6 to 20 carbon atoms; as component (B) an alcohol alkoxylate having an HLB value of 16 to 20 as calculated by the Griffin method, wherein the alcohol alkoxylate is an alkoxylated alcohol alkoxylate having a straight or branched carbon chain having 8 to 22 carbon atoms and an alkoxylate type selected from ethoxy and propoxy; a water-soluble solvent as component (C); an aromatic sulfonic acid or a salt thereof as component (D); and water as component (E).

[0009] That is, the present invention is as follows. (1) A branched-chain alcohol alkoxylate having a cloud point of less than 50°C as component (A), the branched-chain alcohol alkoxylate containing two oxyalkylene groups selected from an oxyethylene group, an oxypropylene group, and an oxybutylene group, and containing a branched-chain alkyl group having 6 to 20 carbon atoms; an alcohol alkoxylate having an HLB value of 16 or more and 20 or less as calculated by the Griffin method as a component (B), the alcohol alkoxylate containing an oxyalkylene group selected from an oxyethylene group and an oxypropylene group and containing a linear or branched alkyl group having 8 or more and 22 or less carbon atoms; (C) a water-soluble solvent as component (D) an aromatic sulfonic acid or a salt thereof, and a deodorizing composition for food and beverage production lines, containing water as component (E); (2) The deodorizing composition for food and beverage production lines according to (1) above, wherein the branched alkyl group in the component (A) is a 2-ethylhexyl group and / or a 2-propylheptyl group. (3) The deodorizing composition for food and beverage production lines according to (1) or (2), wherein the alcohol alkoxylate in the component (B) is an alcohol ethoxylate propoxylate having both an oxyethylene group and an oxypropylene group, and the number of moles of ethylene oxide added is 20 or more and 100 or less. (4) The deodorizing composition for food and beverage production lines according to (1) or (2), wherein the mass ratio (A) / (B) of the component (A) to the component (B) is 2 or more and 50 or less. (5) The deodorizing composition for food and beverage production lines according to (1) or (2), wherein the aromatic sulfonic acid or a salt thereof of the component (D) contains at least one selected from xylene sulfonic acid or a salt thereof, toluene sulfonic acid or a salt thereof, or cumene sulfonic acid or a salt thereof. (6) A deodorizing composition for food and beverage production lines according to (1) or (2) above, wherein the mass ratio (A) / (D) of the component (A) to the component (D) is 0.1 or more and 5000 or less. [Effects of the Invention]

[0010] The deodorizing composition for food and beverage production lines of the present invention (hereinafter sometimes simply referred to as the deodorizing composition) has an excellent deodorizing effect on a variety of flavor odors, and can efficiently deodorize and remove flavor odors from previous products that remain on the production line in food and beverage production factories and the like that produce a variety of different products on the same production line. DETAILED DESCRIPTION OF THE INVENTION

[0011] The present invention is a deodorizing composition for use in food and beverage production lines, which contains the above components (A) to (E) as essential components. The deodorizing composition for food and beverage production lines of the present invention contains a branched alcohol alkoxylate as component (A), which mainly contributes to deodorizing and anti-foaming properties, particularly the effect of suppressing foaming during wastewater treatment.

[0012] Component (A) is a branched alcohol alkoxylate having a low cloud point of less than 50°C. The branched alcohol alkoxylate is a mixture of at least two of oxyethylene, oxypropylene, and oxybutylene groups, with a mixture of oxyethylene and oxypropylene groups being preferred. The branched alcohol alkoxylate preferably contains a total of 2 to 45 moles of alkylene oxide per mole of surfactant. It is preferred to add 2 to 25 moles, particularly 5 to 20 moles, of ethylene oxide per mole of alcohol, and 2 to 40 moles, particularly 5 to 30 moles, of propylene oxide per mole of alcohol. A mixture of butylene oxide or propylene oxide is also possible. A particularly preferred branched alcohol alkoxylate contains 10 to 20 moles of ethylene oxide and 10 to 20 moles of propylene oxide. The alkyl group of the branched alcohol alkoxylate is a branched alkyl group having 6 to 20 carbon atoms. Preferably, it is a branched alkyl group having 8 or more and 16 or less carbon atoms, more preferably 8 or more and 12 or less carbon atoms. Among them, 2-ethylhexyl and 2-propylheptyl groups are most preferred because of their excellent deodorizing properties. Specific examples of branched alcohol alkoxylates include Plurafac SLF-180 (having 17 to 20 moles of oxyethylene groups and 17 to 20 moles of oxypropylene groups, and containing 2-propylheptyl groups) manufactured by BASF and TERGITOL LFE-1410 (containing 2-ethylhexyl groups) manufactured by DOW. Branched alcohol alkoxylates can be prepared from the above-mentioned types of branched fatty alcohols.

[0013] Here, the cloud point can be easily measured by the method described on page 95 of "New Introduction to Surfactants" by Takehiko Fujimoto (Sanyo Chemical Industries). That is, the cloud point is measured by placing alcohol alkoxylate diluted to a 1% by mass aqueous solution in a test tube, placing a thermometer and a stirrer inside, and slowly raising the temperature while gently stirring with the stirrer. When the temperature reaches a certain level or higher, the clear aqueous solution becomes cloudy, and the temperature at which it becomes cloudy is measured and this temperature is taken as the cloud point.

[0014] The deodorizing composition for food and beverage production lines of the present invention contains, as component (B), an alcohol alkoxylate having an HLB value, calculated by the Griffin method, of 16 or more and 20 or less. The alcohol alkoxylate contains an oxyalkylene group selected from an oxyethylene group and an oxypropylene group, and a linear or branched alkyl group having 8 to 22 carbon atoms. Component (B) mainly contributes to storage stability, particularly compatibility with component (A), and further plays a role in preventing the generation of oil droplets when the deodorizing composition is used, as component (A) alone would cause oil droplets to float and contaminate the items being washed.

[0015] The HLB value of the alcohol alkoxylate of component (B) calculated by the Griffin method can be determined using the following formula. Formula: HLB = (molecular weight of hydrophilic group part / molecular weight of surfactant) x 20

[0016] The alcohol alkoxylate of component (B) preferably has a total of 20 to 100 moles of alkylene oxide per mole of surfactant. It preferably has 22 to 80 moles, particularly 24 to 60 moles, of ethylene oxide per mole of alcohol, and 0 to 10 moles, particularly 0 to 7 moles, of propylene oxide per mole of alcohol. Particularly preferred alcohol alkoxylates have 25 to 60 moles of ethylene oxide and 0 to 5 moles of propylene oxide. The alkyl group of the alcohol alkoxylate is a linear or branched alkyl group having 8 to 22 carbon atoms. It is preferably an alkyl group having 10 to 18 carbon atoms, more preferably 10 to 14 carbon atoms. Specific examples include the Pelletex PC series manufactured by Miyoshi Oil & Fats Co., Ltd., the EmulanTO series manufactured by BASF, the Naroacty CL series manufactured by Sanyo Chemical Industries, Ltd., the Noigen XL series manufactured by Daiichi Kogyo Seiyaku Co., Ltd., and the Brownon series and Finesurf series manufactured by Aoki Oil & Fats Co., Ltd. Alcohol alkoxylates can be prepared from higher alcohols of the type described above. Component (B) of the present invention has a cloud point of 50° C. or higher and is therefore clearly distinguishable from component (A).

[0017] The deodorizing composition for food and beverage production lines of the present invention contains a water-soluble solvent as component (C), which mainly contributes to deodorizing properties and storage stability.

[0018] Component (C) is a water-soluble solvent, and examples thereof include alcohol-based solvents, glycol ether-based solvents, etc. Examples of the alcohol-based solvents include ethyl alcohol, normal propanol, isopropanol, 3-methoxybutanol, ethylene glycol, diethylene glycol, triethylene glycol, polyethylene glycol (molecular weight 200 to 1000), propylene glycol, dipropylene glycol, tripropylene glycol, polypropylene glycol (molecular weight 200 to 1000), 1,2-butylene glycol, 1,3-butylene glycol, 1,4-butanediol, 1,5-pentanediol, hexylene glycol, and glycerin. Examples of the glycol ether solvent include ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monoisopropyl ether, ethylene glycol monobutyl ether, ethylene glycol dimethyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether, diethylene glycol monopropyl ether, diethylene glycol dimethyl ether, diethylene glycol diethyl ether, triethylene glycol monomethyl ether, triethylene glycol monoethyl ether, triethylene glycol monobutyl ether, triethylene glycol dimethyl ether, tetraethylene glycol dimethyl ether, polyethylene glycol monomethyl ether, propylene glycol monomethyl ether, propylene glycol monoethyl ether, propylene glycol monopropyl ether, dipropylene glycol monomethyl ether, dipropylene glycol dimethyl ether, tripropylene glycol monomethyl ether, 3-methyl-3-methoxybutanol, etc. These may be used alone or in combination of two or more.

[0019] Among the above-mentioned (C) components, propylene glycol, ethylene glycol monobutyl ether, diethylene glycol monobutyl ether, and triethylene glycol monobutyl ether are preferred, with propylene glycol being more preferred, from the viewpoints of deodorizing properties, preventing solvent odor from being transferred to packings, and storage stability. Furthermore, (C) component may be one alcohol-based solvent, a combination of two or more alcohol-based solvents, one glycol ether-based solvent, a combination of two or more glycol ether-based solvents, or a combination of an alcohol-based solvent and a glycol ether-based solvent.

[0020] The deodorizing composition for food and beverage production lines of the present invention contains an aromatic sulfonic acid or a salt thereof as component (D), which mainly contributes to deodorizing properties.

[0021] The aromatic sulfonic acid or salt thereof, which is the component (D), refers to a compound in which at least a sulfo group is substituted on the benzene ring of an aromatic compound. Specifically, it preferably contains at least one selected from xylene sulfonic acid or a salt thereof, toluene sulfonic acid or a salt thereof, cumene sulfonic acid or a salt thereof, benzene sulfonic acid or a salt thereof, or a substituted or unsubstituted naphthalene sulfonic acid or a salt thereof. The substituted naphthalene sulfonic acid refers to a naphthalene sulfonic acid substituted with a halogen, a hydrocarbon group, a hydroxy group, a carboxyl group, or the like.

[0022] In particular, the aromatic sulfonic acid or salt thereof is preferably a monocyclic aromatic sulfonic acid, and specifically, it preferably contains at least one selected from xylene sulfonic acid or a salt thereof, toluene sulfonic acid or a salt thereof, cumene sulfonic acid or a salt thereof, or benzene sulfonic acid or a salt thereof, more preferably contains at least one selected from xylene sulfonic acid or a salt thereof, toluene sulfonic acid or a salt thereof, or cumene sulfonic acid or a salt thereof, and even more preferably contains at least one selected from xylene sulfonic acid or a salt thereof, or cumene sulfonic acid or a salt thereof.

[0023] The components (A) to (D) may each be a single component, or a combination of multiple components.

[0024] The deodorizing composition for food and beverage production lines of the present invention contains water as component (E). Examples of water that can be used include tap water, softened water, purified water, RO water, ion-exchanged water, and distilled water. Examples of tap water include tap water from Arakawa Ward, Tokyo (pH = 7.6, total alkalinity (calcium carbonate equivalent) 40.5 mg / L, German hardness 2.3°DH (including calcium hardness 1.7°DH and magnesium hardness 0.6°DH), chloride ions 21.9 mg / L, sodium and its compounds 15 mg / L, nitrate nitrogen and nitrite nitrogen 1.2 mg / L, fluorine and its compounds 0.1 mg / L, boron and its compounds 0.04 mg / L, total trihalomethanes 0.016 mg / L, residual chlorine 0.4 mg / L, and organic matter (total organic carbon) 0.7 mg / L). The water (E) of the present invention is the balance relative to the total amount of the components (A) to (D) or the balance relative to the total amount of the components (A) to (D) and other optional components.

[0025] The concentration of component (A) in the deodorizing composition for food and beverage production lines is not particularly limited as long as the effects of the present invention are achieved, but from the viewpoint of the deodorizing and foam-suppressing properties of the deodorizing composition for food and beverage production lines, it is preferably from 1 to 50% by mass, more preferably from 8 to 42% by mass, and even more preferably from 14 to 38% by mass. When the deodorizing composition of the present invention is diluted before use, component (A) is preferably from 0.001 to 0.8% by mass, more preferably from 0.01 to 0.5% by mass, based on the total amount of the diluted solution. Furthermore, when the deodorizing composition of the present invention is used as the acidic deodorizing cleaning solution or alkaline deodorizing cleaning solution described below, the amount of component (A) is preferably 0.001 mass % or more and 0.8 mass % or less, and more preferably 0.01 mass % or more and 0.5 mass % or less, based on the total amount of the acidic deodorizing cleaning solution or alkaline deodorizing cleaning solution.

[0026] The concentration of component (B) in the deodorizing composition for food and beverage production lines is not particularly limited as long as the effects of the present invention are achieved, but from the viewpoint of improving storage stability and the solubility of component (A), it is preferably from 0.1 to 15% by mass, more preferably from 0.5 to 10% by mass, and even more preferably from 1 to 8% by mass, based on the total amount of the deodorizing composition for food and beverage production lines. When the deodorizing composition of the present invention is diluted before use, the concentration of component (B) is preferably from 0.001 to 0.15% by mass, more preferably from 0.002 to 0.1% by mass, based on the total amount of the diluted solution. Furthermore, when the deodorizing composition of the present invention is used as the acidic deodorizing detergent liquid or alkaline deodorizing detergent liquid described below, the amount of component (B) is preferably 0.001 mass % or more and 0.15 mass % or less, and more preferably 0.002 mass % or more and 0.1 mass % or less, based on the total amount of the acidic deodorizing detergent liquid or alkaline deodorizing detergent liquid.

[0027] The concentration of component (C) in the deodorizing composition for food and beverage production lines is not particularly limited as long as the effects of the present invention are achieved, but from the viewpoints of deodorizing ability and storage stability of the deodorizing composition for food and beverage production lines, it is preferably 1% by mass or more and 40% by mass or less, more preferably 5% by mass or more and 35% by mass or less, and even more preferably 10% by mass or more and 30% by mass or less. When the deodorizing composition of the present invention is diluted before use, component (C) is preferably 0.01% by mass or more and 0.4% by mass or less, more preferably 0.02% by mass or more and 0.3% by mass or less, based on the total amount of the diluted solution. Furthermore, when the deodorizing composition of the present invention is used as the acidic deodorizing cleaning solution or alkaline deodorizing cleaning solution described below, the amount of component (C) is preferably 0.01 mass % or more and 0.4 mass % or less, and more preferably 0.02 mass % or more and 0.3 mass % or less, based on the total amount of the acidic deodorizing cleaning solution or alkaline deodorizing cleaning solution.

[0028] The concentration of component (D) in the deodorizing composition for food and beverage production lines is not particularly limited as long as the effects of the present invention are achieved, but from the viewpoint of the deodorizing properties of the deodorizing composition for food and beverage production lines, it is preferably from 0.1 to 20% by mass, more preferably from 1 to 16% by mass, and even more preferably from 2 to 12% by mass, based on the total amount of the deodorizing composition for food and beverage production lines. When the deodorizing composition of the present invention is diluted before use, the concentration of component (D) is preferably from 0.001 to 0.3% by mass, more preferably from 0.005 to 0.2% by mass, based on the total amount of the diluted solution. Furthermore, when the deodorizing composition of the present invention is used as the acidic deodorizing detergent liquid or alkaline deodorizing detergent liquid described below, the amount of component (D) is preferably 0.001 mass % or more and 0.3 mass % or less, and more preferably 0.005 mass % or more and 0.2 mass % or less, based on the total amount of the acidic deodorizing detergent liquid or alkaline deodorizing detergent liquid.

[0029] The mass ratio (A) / (B) of component (A) to component (B) of the deodorizing composition for food and beverage production lines of the present invention is preferably 1 or more and 500 or less, more preferably 1.5 or more and 100 or less, and even more preferably 2 or more and 50 or less. When the value of (A) / (B) is 1 or more and 500 or less, the storage stability of the deodorizing composition for food and beverage production lines is improved, and the role of preventing the generation of oil droplets (dilution stability) is improved when the deodorizing composition is used, because component (A) alone causes oil droplets to float and contaminate the items to be washed.

[0030] The mass ratio (A) / (D) of the component (A) to the component (D) of the deodorizing composition for food and beverage production lines of the present invention is preferably 0.1 or more and 500 or less, more preferably 1 or more and 200 or less, and even more preferably 2 or more and 50 or less. When the value of (A) / (D) is 0.1 or more and 500 or less, the deodorizing properties of the deodorizing composition for food and beverage production lines are improved.

[0031] The deodorizing composition for food and beverage production lines of the present invention may further contain, as necessary, a component (F) which is an alcohol alkoxylate other than component (A) that has a low cloud point of less than 50°C, wherein the alcohol alkoxylate contains two oxyalkylene groups selected from an oxyethylene group, an oxypropylene group, and an oxybutylene group, and contains a linear alkyl group having 6 to 20 carbon atoms; a pH adjuster; a chelating agent; a polymer dispersant; an organic phosphonic acid; a food coloring; a preservative; a metal corrosion inhibitor; an antifoaming agent; a natural extract; a thickener; an enzyme; etc.

[0032] The linear alcohol alkoxylate (F), other than component (A), has a low cloud point of less than 50°C. The linear alcohol alkoxylate is a mixture of at least two of oxyethylene, oxypropylene, and oxybutylene groups, with a mixture of oxyethylene and oxypropylene groups being preferred. The linear alcohol alkoxylate preferably contains a total of 2 to 45 moles of alkylene oxide added per mole of surfactant. It is preferred to add 2 to 25 moles, particularly 3 to 20 moles, of ethylene oxide per mole of alcohol, and 2 to 25 moles, particularly 3 to 20 moles, of propylene oxide per mole of alcohol. A mixture of butylene oxide or propylene oxide is also possible. The alkyl group of the linear alcohol alkoxylate is a linear alkyl group having 6 to 20 carbon atoms. It is preferably a linear alkyl group having 8 to 16 carbon atoms, more preferably 8 to 14 carbon atoms. Specific examples of linear alcohol alkoxylates include ADEKA NOL B-722 (trademark) (cloud point of 16° C. or less) and ADEKA NOL B-733 (trademark) (cloud point of 31° C. or less), both manufactured by ADEKA Corp. Linear alcohol alkoxylates can be prepared from the above-mentioned types of linear fatty alcohols.

[0033] The pH of the deodorizing composition for food and beverage production lines of the present invention is 4 to 12 at 25°C. If the pH is less than 4, chlorine gas may be generated when mixed with a chlorinated alkali CIP cleaner, which is not preferred. If the pH is more than 12, heat of neutralization may be generated when mixed with an acidic CIP cleaner, which is not preferred. The above pH values ​​were measured by the method described in the Examples below.

[0034] Examples of chelating agents include ethylenediaminetetraacetic acid, nitrilotriacetic acid, methylglycine diacetic acid, hydroxyethylenediaminetriacetic acid, diethylenetriaminopentaacetic acid, triethylenetetraaminehexaacetic acid, hydroxyethyliminodiacetic acid, dihydroxyethylglycine, glutamic acid diacetic acid, aspartic acid diacetic acid, β-alanine diacetic acid, serine diacetic acid, tripolyphosphate, and alkali metal salts thereof, which may be used alone or in combination of two or more.

[0035] Examples of polymer dispersants include polyacrylic acid, polymethacrylic acid, polymaleic acid, polyitaconic acid, acrylic acid-methacrylic acid copolymer, acrylic acid-maleic acid copolymer, olefin-maleic acid copolymer, acrylic acid-sulfonic acid copolymer, maleic anhydride-styrene copolymer, maleic anhydride-ethylene copolymer, maleic anhydride-vinyl acetate copolymer, maleic anhydride-acrylic acid ester copolymer, and salts thereof. These may be used alone or in combination of two or more. From the viewpoint of scale adhesion prevention, the polymer dispersant is preferably polyacrylic acid or a salt thereof, polymaleic acid or a salt thereof, acrylic acid-methacrylic acid copolymer, acrylic acid-maleic acid copolymer, olefin-maleic acid copolymer, or acrylic acid-sulfonic acid copolymer. Acrylic acid type copolymer, maleic acid type copolymer, or methacrylic acid type copolymer is more preferably one that does not contain an amide bond. The weight-average molecular weight of the polyacrylic acid is preferably 500 to 20,000, more preferably 1,500 to 15,000.

[0036] The organic phosphonic acid is a compound containing at least one phosphonic acid group in the molecule, and specific examples thereof include methyldiphosphonic acid, ethylidenediphosphonic acid, 1-hydroxyethylidene-1,1-diphosphonic acid, 1-hydroxypropylidene-1,1-diphosphonic acid, 1-hydroxybutylidene-1,1-diphosphonic acid, ethylaminobis(methylenephosphonic acid), dodecylaminobis(methylenephosphonic acid), ethylenediaminebis(methylenephosphonic acid), aminotri(methylenephosphonic acid), ethylenediaminetetra(methylenephosphonic acid), 1,2-propylenediaminetetra(methylenephosphonic acid), hexamethylenediaminetetra(methylenephosphonic acid), cyclohexanediaminetetra(methylenephosphonic acid), glycol A Examples of suitable phosphonic acids include terdiaminetetra(methylene phosphonic acid), diethylenetriaminepenta(methylene phosphonic acid), triethylenetetraminehexa(methylene phosphonic acid), tri(2-aminoethyl)aminehexa(methylene phosphonic acid), tetraethylenepentaminehepta(methylene phosphonic acid), pentaethylenehexamineocta(methylene phosphonic acid), 2-phosphonobutane-1,2,4-tricarboxylic acid, and aminotrimethylene phosphonic acid. Among these, from the viewpoint of scale cleaning ability, one or a combination of two or more selected from 1-hydroxyethylidene-1,1-diphosphonic acid, 2-phosphonobutane-1,2,4-tricarboxylic acid, aminotri(methylene phosphonic acid), and ethylenediaminetetra(methylene phosphonic acid) is preferred.

[0037] Examples of food dyes include Food Red No. 2 (Amaranth), Food Red No. 3 (Erythrosine), Food Red No. 40 (Allura Red AC), Food Red No. 102 (New Coccine), Food Red No. 104 (Phloxine), Food Red No. 105 (Rose Bengal), Food Red No. 106 (Acid Red), Food Yellow No. 4 (Tartrazine), Food Yellow No. 5 (Sunset Yellow FCF), Food Blue No. 1 (Brilliant Blue FCF), and Food Blue No. 2 (Indigo Carmine).

[0038] Examples of preservatives include sodium hypochlorite, potassium hypochlorite, hydrogen peroxide, ε-polylysine, poly-γ-glutamic acid, nisin, CMIT (5-chloro-2-methyl-4-isothiazolin-3-one), MIT (2-methyl-4-isothiazolin-3-one), BIT (1,2-benzisothiazolin-3-one), BBIT (Nn-butyl-benzisothiazolin-3-one), and OIT (2-n-octyl-4-isothiazolin-3-one).

[0039] Examples of metal corrosion inhibitors include polycarboxylic acids such as short-chain dicarboxylic or tricarboxylic acids, phosphoric acid esters, triazoles such as benzotriazole, tolyltriazole, or mercaptobenzothiazole, phosphonic acids such as 1-hydroxyethylidene-1,1-diphosphonic acid, adipic acid, glutaric acid, or succinic acid.

[0040] Examples of the antifoaming agent include silicone-based antifoaming agents such as silicone, polyether-modified silicone, alkyl-modified silicone, and silicone-based emulsions using these silicone substances, and polyether-based antifoaming agents.

[0041] Examples of natural extracts include natural extracts derived from plants such as Cannabaceae plants, Rubiaceae plants, Cruciferae plants, Gramineae plants, Ebenaceae plants, Asteraceae plants, Lamiaceae plants, Zingiberaceae plants, Theaceae plants, Solanaceae plants, Cupressaceae plants, Myrtaceae plants, Vitaceae plants, Legumes, Rutaceae plants, and Liliaceae plants; and natural extracts derived from animals such as lysozyme and milt protein extract.

[0042] Examples of thickeners include natural gums such as xanthan gum and guar gum, alginate, starch, polysaccharide-based thickeners, and hydrocolloid thickeners such as pectin, and may be used alone or in combination.

[0043] Examples of the enzyme include lipase, alkaline amylase, amylase, cellulase, protease, pullulanase, and the like.

[0044] Next, the deodorizing and cleaning method of the present invention will be described. The deodorizing and cleaning method of the present invention includes (I) a method of immersion in a diluted deodorizer solution, (II) a method of adding a deodorizing step using a diluted deodorizer solution to a conventional CIP cleaning step, and (III) a cleaning method in which both the acid or alkaline cleaning step and the deodorizing step are performed in one step, such as an acid cleaning step using an acidic cleaning solution and / or an alkaline cleaning step using an alkaline cleaning solution, together with a CIP deodorizer composition. The deodorizing and cleaning method of the present invention is characterized in that it satisfies the following (III)-1 when it has an acid cleaning step but not an alkaline cleaning step, satisfies the following (III)-2 when it has no acid cleaning step but an alkaline cleaning step, and satisfies at least one of the following (III)-1 or (III)-2 when it has both an acid cleaning step and an alkaline cleaning step. (III)-1 The acidic cleaning solution used in the acid cleaning step is an acidic deodorizing cleaning solution containing the deodorizing composition for food and beverage production lines of the present invention and an acidic substance and / or an acidic cleaning composition. (III)-2 The alkaline cleaning solution used in the alkaline cleaning step is an alkaline deodorizing cleaning solution containing the deodorizing composition for food and beverage production lines of the present invention and an alkaline substance and / or alkaline cleaning composition.

[0045] When preparing a deodorizing cleaning solution, the deodorizing composition of the present invention may be diluted and mixed into the alkaline cleaning step or the acid cleaning step, or the deodorizing composition may be mixed without dilution. By simultaneously carrying out the deodorizing step in the alkaline cleaning step or the acid cleaning step in CIP cleaning in this way, the cleaning and deodorizing time of the food and beverage production line can be significantly shortened, the manufactured products can be quickly changed over, and the production rate for each product can be significantly improved. In CIP cleaning, the deodorizing composition for food and beverage production lines of the present invention can be mixed with one or both of an alkaline cleaning agent and an acid cleaning agent to simultaneously carry out cleaning and deodorization, but even in this case, a separate deodorizing step can also be provided.

[0046] The deodorizing composition of the present invention exhibits excellent deodorizing effects even when used in combination with an acidic or alkaline cleaning agent, and does not impair the cleaning properties of the acid or alkaline cleaning. Therefore, the deodorizing cleaning method of the present invention can simultaneously achieve deodorization while maintaining good cleaning properties in the acid cleaning step and / or alkaline cleaning step. In other words, the deodorizing cleaning method of the present invention can perform the cleaning step and deodorizing step in one step, thereby shortening the cleaning time for production lines, parts, etc.

[0047] When the product has an acid washing step and an alkali washing step, whether the deodorizing step is performed in one step in the acid washing step or the alkali washing step is not particularly limited, and can be determined, for example, depending on the type of main flavor remaining in the production line after use. For example, by performing an acid washing step using the acidic deodorizing detergent solution described in (III)-1 above, a wide range of flavors, such as terpene hydrocarbons, esters, higher aliphatic alcohols, aromatic alcohols, higher aliphatic aldehydes, aromatic aldehydes, and lactones, can be effectively deodorized. Furthermore, by performing alkaline washing using the alkaline deodorizing detergent solution described in (III)-2 above, a wide range of flavors can be effectively deodorized, similar to the acid washing step using the acidic deodorizing detergent solution described in (III)-1 above, but flavors such as terpene hydrocarbons and esters can be effectively deodorized. By using an acidic deodorizing detergent solution in the acid washing step and an alkaline deodorizing detergent solution in the alkaline washing step, more complex flavors can be effectively deodorized.

[0048] The acidic deodorizing cleaner solution used in (III)-1 above contains the deodorizing composition of the present invention and an acidic substance and / or an acidic cleaner composition. The acidic substance can be appropriately selected from the acidic substances contained in the acidic cleaner used in the acid cleaning process. Examples of the acidic substance include, but are not limited to, one or a combination of two or more acids such as nitric acid, sulfamic acid, methanesulfonic acid, and citric acid. The acidic cleaner composition refers to a composition containing the acidic substance and other substances. The other substances may be selected from one or more known additives that can be added to cleaners, such as surfactants, defoamers, organic solvents, thickeners, and fragrances. In the acid washing step, the acidic substance is preferably diluted to a concentration of about 0.10% by mass or more and 5.0% by mass or less.

[0049] The alkaline deodorizing detergent solution used in (III)-2 above contains the deodorizing composition of the present invention and an alkaline substance and / or an alkaline detergent composition. Here, the alkaline substance may be, but is not limited to, one or a combination of two or more alkalis such as sodium hydroxide and potassium hydroxide. The alkaline detergent composition refers to a composition containing substances other than the alkaline substance. The other substances may be, for example, one or more of known additives that can be added to detergents, such as surfactants, defoamers, organic solvents, thickeners, and fragrances. In the alkaline washing step, the alkaline substance is preferably diluted to a concentration of about 0.10% by mass or more and 5.0% by mass or less.

[0050] (Disassembly and cleaning) The disassembly and cleaning can be carried out by any suitable method including a step of contacting the disassembled parts with the deodorizing detergent liquid to clean and deodorize them. For example, a dipping method in which the disassembled parts are dipped in the deodorizing detergent liquid, or a spraying method in which the disassembled parts are sprayed with the deodorizing detergent liquid, can be employed.

[0051] (CIP cleaning) The CIP cleaning can be a treatment method including a step of cleaning and deodorizing an area to be deodorized in an undecomposed food and beverage production line by appropriately contacting the deodorizing detergent liquid with the area to be deodorized. For example, deodorization can be performed by a circulation treatment method in which the deodorizing detergent liquid is circulated inside an apparatus equipped with an undecomposed food and beverage production line for deodorization, or by a spray treatment method in which the deodorizing detergent liquid is sprayed onto the area to be deodorized of the undecomposed food and beverage production line. In the circulation treatment method, it is preferable to circulate the deodorizing detergent liquid so that the deodorizing detergent liquid comes into sufficient contact with the inside of the tanks or piping in the food and beverage production line and the inside of various equipment, etc. The method for spraying the deodorizing detergent liquid in the above-mentioned spray treatment method is not particularly limited, but a high-pressure washer capable of high-pressure spraying can be preferably used.

[0052] A typical CIP cleaning process involves an alkaline cleaning step, a water rinse step, an acid cleaning step, and a water rinse step, in that order. Furthermore, a water cleaning step may be performed before these steps, and a sterilization step and a water rinse step may be performed after these steps. Depending on the ingredients of the cleaning agent used and the type and condition of the dirt, some steps may be omitted, the order may be changed, or the same steps may be repeated.

[0053] In the acid washing step or alkaline washing step, the temperature of the deodorizing detergent liquid is adjusted to a range of preferably 10 to 160°C, more preferably 50 to 150°C, and even more preferably 80 to 140°C. In the injection treatment in the decomposition deodorization step or the circulation or injection treatment in the stationary deodorization step, it is preferable to circulate or inject the diluted solution under pressure of 100 kPa to 550 kPa. A higher deodorizing effect can be obtained by circulating or injecting the diluted solution adjusted to a temperature range of 60 to 160°C, particularly a temperature range of 80 to 140°C, under the above-mentioned pressure.

[0054] Although the above description has been given of the case where the deodorizing composition of the present invention is used in combination with an alkaline or acidic cleaning agent in CIP cleaning, the mixture of the deodorizing composition of the present invention with an alkaline or acidic cleaning agent can be used not only in CIP cleaning but also in a method of disassembling machinery and equipment in a food and beverage production line and spraying the treatment solution onto the object to be cleaned or the outer surface of the object to be cleaned with a high-pressure washer, or a method of immersing the object to be cleaned in the treatment solution. In this case, the concentrations of the deodorizing composition, alkaline cleaning agent, and acidic cleaning agent are preferably used at 1 to 10 times the concentrations used in CIP cleaning.

[0055] Furthermore, the above-described deodorizing and cleaning method of the present invention does not limit the method of using the deodorizing composition for food and beverage production lines of the present invention. The deodorizing composition for food and beverage production lines of the present invention may be used when a deodorizing step is carried out alone, independently of an acid cleaning step or an alkali cleaning step. When carrying out a deodorizing process on a food and beverage production line using the deodorizer composition of the present invention, a dilution liquid is usually prepared by diluting the deodorizer composition of the present invention with a dilution solvent such as water, hot water, a non-aqueous solvent, or an aqueous solvent. From the viewpoint of economy and safety, it is preferable to use water or hot water as the dilution solvent. The water or hot water referred to here includes ion-exchanged water, distilled water, pure water, soft water, tap water, etc., and the temperature during use is not limited. The temperature of the dilution liquid during dilution is not particularly limited, but is preferably adjusted to a range of 10°C or higher and 85°C or lower, for example. Here, the dilution ratio of the deodorizer composition is not particularly limited and may be adjusted as appropriate. For example, by diluting the deodorizer composition of the present invention so that the content of the deodorizer composition in the diluted solution is 0.10 mass % or more and 10.0 mass % or less, a concentration at which each component contained in the deodorizer composition contributes to deodorization can be ensured, and an excellent deodorizing effect can be sufficiently obtained.

[0056] After deodorizing, the deodorant composition of the present invention is usually sent as wastewater to a treatment tank called an aeration tank, where it is mixed with microorganisms. In the aeration tank, air is blown in vigorously to stimulate microbial activity, which tends to cause foaming. Foaming also affects the efficiency of treatment equipment and is one of the reasons why the equipment is unable to perform to its full potential. Therefore, it is required that the wastewater not generate foam during treatment. [Example]

[0057] The present invention will be specifically explained below with reference to examples and comparative examples. The components used in the formulations in the examples and comparative examples are shown below. In the following examples, "%" represents % by mass unless otherwise specified, and the numerical values ​​for the formulations in the examples and comparative examples in the tables represent the mass % of the pure content. The "balance" indicating the water content refers to the amount of formulation adjusted so that the total amount of the aqueous disinfectant, which is the final preparation, is 100% by mass. The compounds used in the examples and comparative examples are listed below. In addition, when an alkyl group is expressed as alkyl (C8-18), for example, it represents a mixture having an alkyl group with 8 to 18 carbon atoms.

[0058] The components of the deodorizing composition for food and beverage production lines (hereinafter abbreviated as deodorizing composition) used in the formulation of the Examples and Comparative Examples are shown in Tables 1 to 7 below. The deodorant composition was used to carry out the measurements and evaluations described below. The measurement results and evaluation results are shown in Tables 1 to 7.

[0059] Component (A): Branched chain alcohol alkoxylate having a low cloud point of less than 50°C A-1: Branched alcohol alkoxylate 1, Plurafac SLF 180 (trademark) (cloud point 16 to 21°C, manufactured by BASF) A-2: Branched alcohol alkoxylate 2, TERGITOL LFE-1410 (trademark) (cloud point 10°C, HLB 8.4, manufactured by Dow) A-3: Branched alcohol alkoxylate 3, ECOSURF EH-6 (trademark) (manufactured by Dow) (cloud point 40°C, HLB 10.8, manufactured by Dow) A-4: Branched chain alcohol alkoxylate 4, TERGITOL LFE-635 (trademark) (cloud point 35°C, HLB 9.9, manufactured by Dow)

[0060] (A) Comparative ingredient A'-1: Polyoxyethylene monooleate, IONET MO-400 (trademark) (cloud point below 20°C, HLB 11.8, manufactured by Sanyo Chemical Industries, Ltd.)

[0061] (B) Component: Alcohol alkoxylate with an HLB value of 16 or more and 20 or less (hereinafter referred to as high HLB alcohol alkoxylate) B-1: High HLB alcohol alkoxylate 1, Pelletex PC-2465 (trademark) (HLB 17.2, alkyl group carbon number 12, EO added mole number: 50, manufactured by Miyoshi Oil & Fats) B-2: High HLB alcohol alkoxylate 2, Brownon EL-1530 (trademark) (cloud point 80°C or higher, HLB 17.4, alkyl group carbon number 12, EO added mole number: 30, manufactured by Aoki Oil & Fat Industries) B-3: High HLB alcohol alkoxylate 3, Fine Surf 500 (trademark) (cloud point 80°C or higher, HLB 17.4, EO addition mole number: 30, manufactured by Aoki Oil & Fat Industries) B-4: High HLB alcohol alkoxylate 4, alkyl group carbon number 10, Noigen XL400D (trademark) (cloud point 80°C or higher, HLB 18.4, manufactured by Daiichi Kogyo Seiyaku) B-5: High HLB alcohol alkoxylate 5, Naroacty CL-400 (trademark) (cloud point 100°C or higher, HLB 17.8, manufactured by Sanyo Chemical Industries, Ltd.)

[0062] (B) Comparative ingredients B'-1: Polyoxyalkylene branched decyl ether, Noigen LF-60X (trademark) (cloud point 43°C, HLB 13.3, manufactured by Daiichi Kogyo Seiyaku)

[0063] Component (C): Water-soluble solvent C-1: Propylene glycol (ADEKA, "Industrial Propylene Glycol") C-2: Polyethylene glycol (average molecular weight 200) C-3: Ethylene glycol monobutyl ether C-4: Diethylene glycol monobutyl ether

[0064] Component (D): Aromatic sulfonic acid or its salt D-1: Sodium cumene sulfonate D-2: Sodium meta-xylene sulfonate D-3: Sodium paratoluenesulfonate

[0065] (E) Ingredient: Water E-1: Ion-exchanged water

[0066] (F) Ingredient: Other nonionic surfactants F-1: Polyoxyalkylene alkyl ether 1, ADEKA NOL B-722 (trademark) (cloud point 16°C or less, manufactured by ADEKA) F-2: Polyoxyalkylene alkyl ether 2, ADEKA NOL B-733 (trademark) (cloud point 31°C or less, manufactured by ADEKA) F-3: Polyoxyalkylene alkyl ether 3, ADEKA NOL B-2020 (trademark) (cloud point below 24°C, manufactured by ADEKA) F-4: Polyoxyalkylene alkyl ether 4, ADEKA NOL BO-902 (trademark) (cloud point 44°C or less, manufactured by ADEKA)

[0067] For the deodorant composition of each example, components (C) and (E) were added to a mixing tank, followed by component (B) and dissolution. Next, component (D) was added and thoroughly mixed and stirred, followed by component (A). Water was then added so that the total amount became 100% by mass, and further stirring was performed to obtain a deodorant composition.

[0068] Examples 1 to 60, Comparative Examples 1 to 10 The deodorant compositions shown in Tables 1 to 7 were prepared. Each deodorant composition was measured for deodorizing properties, anti-foaming properties, and storage stability. Tables 1 to 6 show the results for Examples 1 to 60, and Table 7 shows the results for Comparative Examples 1 to 10.

[0069] *pH measurement method A pH measurement composite electrode (HORIBA; glass ground sleeve type) was connected to a pH meter (HORIBA; pH / ion meter F-23) and the power was turned on. A saturated potassium chloride aqueous solution (3.33 mol / L) was used as the internal solution of the pH electrode. Next, 100 mL of a pH 4.01 standard solution (phthalate standard solution), a pH 6.86 standard solution (neutral phosphate standard solution), and a pH 9.18 standard solution (borate standard solution) were each filled into a beaker and immersed in a thermostatic bath at 25°C for 30 minutes. A pH measurement electrode was immersed in the thermostatically adjusted standard solutions for 3 minutes, and calibration was performed in the order of pH 6.86 → pH 9.18 → pH 4.01. Each deodorant composition was filled into a 100 mL beaker and adjusted to 25° C. in a thermostatic bath. A pH measurement electrode was immersed in the thermostatically adjusted sample for 3 minutes to measure the pH of the composition.

[0070] *1: Deodorization test [Deodorization test specimen] EPDM packing (5 cm square, 5 mm thick) was completely immersed in each test beverage and left at 100°C for 8 hours to serve as the test specimen. Orange and apple beverages were used as test beverages.

[0071] [Test method] A 3% by mass diluted solution of each deodorant composition was prepared using ion-exchanged water. 200 mL of each diluted solution was placed in a 300 mL beaker, and the diluted solution was heated to 75°C. Then, one packing of the deodorization test specimen prepared by the above method was placed in each beaker and immersed for 30 minutes while maintaining the temperature at 75°C. The packing was then thoroughly rinsed with tap water, placed in a 100 mL transparent polypropylene container containing 100 mL of ion-exchanged water, and extracted at 80°C for 1 hour. The water from which the packing was removed was used as test water and as a sample for evaluation.

[0072] [Evaluation method] Ten panelists evaluated the odor of the test water using the following four-point scale. The lower the score, the better the deodorizing effect. The total score of the 10 panelists was used to evaluate the "level of odor retention." The evaluation criteria were as follows: [Evaluation criteria] 1 point: No beverage flavor smell. 2 points: Slight flavor odor. 3 points: Slightly strong flavor smell. 4 points: Strong flavor smell. Odor Residual Level ◎: Total score is less than 16 points. ○: Total score is 16 or more but less than 22 points. △: Total score is 22 or more but less than 28 points. ×: Total score is 28 points or more. The symbols ◎, ○ and △ were used to indicate practicality.

[0073] *2-1: Anti-foaming test Each deodorant composition was diluted to 1% by mass using hard water having a calcium carbonate equivalent of 75 mg / L [German hardness 4.2° DH] to prepare 100 mL of diluted solution, which was then heated to 80°C. 20 mL of the diluted solution was placed in a 100 mL glass-stoppered Epton tube, and the temperature was raised to 80°C in a hot water bath. The tube was then shaken up and down 20 times at a rate of once per second, and allowed to stand for 1 minute while maintained at 80°C, after which the height of foam from the diluted solution surface was measured, and the foam-inhibiting ability was evaluated according to the following criteria.

[0074] [Evaluation criteria] ◎: The bubble height is less than 10 mm. ○: The bubble height is 10mm or more and less than 15mm. △: Foam height is 15mm or more but less than 20mm. ×: The bubble height is 20 mm or more, The evaluation was made as being practical with ◎, ○, and △.

[0075] *2-2: Anti-foaming test (mixed with CIP cleaning agent) Using hard water equivalent to 75 mg / L of calcium carbonate [German hardness 4.2° DH], 50 mL of diluted solutions were prepared using a CIP detergent manufactured by ADEKA Clean Aid (acidic: ADEKA TF50 (trade name) or alkaline: ADEKA Cycle CR (trade name)) and each deodorizing composition, each at 1% by mass (final concentration of 3% by mass). After heating to 80°C, 20 mL of the diluted solution was placed in a 100 mL glass-stoppered Epton tube and heated to 80°C in a water bath. The tube was then shaken up and down 20 times at a rate of once per second and allowed to stand for 1 minute while maintained at 80°C. The height of foam from the surface of the diluted deodorizing solution was measured, and the foam-suppressing ability was evaluated according to the following criteria.

[0076] [Evaluation criteria] ◎: The bubble height is less than 10 mm. ○: The bubble height is 10mm or more and less than 15mm. △: Foam height is 15mm or more but less than 20mm. ×: The bubble height is 20 mm or more, The evaluation was made as being practical with ◎, ○, and △.

[0077] *2-3: Anti-foam test (during wastewater treatment) Using hard water of 75 mg / L (German hardness 4.2° DH) in terms of calcium carbonate, 50 mL of diluted solution was prepared so that each deodorant composition was at 0.01% by mass (final concentration of 0.1% by mass). After heating this to 25°C, 20 mL of diluted solution was placed in a 100 mL Epton tube with a glass stopper, and the temperature was adjusted to 25°C. Thereafter, the tube was shaken up and down 20 times at a rate of once per second, and allowed to stand for 1 minute while maintained at 25°C. After that, the height of foam from the surface of the diluted deodorant solution was measured, and the foam-inhibiting ability was evaluated according to the following criteria.

[0078] [Evaluation criteria] ◎: The bubble height is less than 10 mm. ○: The bubble height is 10mm or more and less than 15mm. △: Foam height is 15mm or more but less than 20mm. ×: The bubble height is 20 mm or more, The evaluation was made as being practical with ◎, ○, and △.

[0079] *3: Diluted solution stability test Test Method: Each deodorant composition was diluted to 3% by mass using hard water having a calcium carbonate equivalent of 75 mg / L [German hardness 4.2° DH] to prepare 100 mL of diluted solution, which was then heated to 80° C. 20 mL of the diluted solution was placed in a 100 mL glass-stoppered Epton tube and heated to 80° C. After leaving the tube at 80° C. for 1 minute, the appearance of the diluted solution surface was visually inspected, and the diluted solution stability was evaluated according to the following criteria.

[0080] Evaluation criteria: ○: The solution is uniformly cloudy △: The solution is homogeneous but slightly cloudy ×: The solution has an oil film and is transparent (separated). The evaluation was made as △ and ○ for practical use.

[0081] *4: Storage stability test Test Method: 100 g of each deodorant composition was placed in a polypropylene container and allowed to stand at −5° C., 25° C., and 40° C. for one month, after which the appearance was observed.

[0082] Evaluation criteria: ○: Stable with no separation or turbidity observed △: No overall separation, slight turbidity observed, but no problems in use ×: Separation or turbidity is observed The evaluation was made as △ and ○ for practical use.

[0083] [Table 1]

[0084] [Table 2]

[0085] [Table 3]

[0086] Table 4

[0087] Table 5

[0088] Table 6

[0089] Table 7

Claims

1. a branched-chain alcohol alkoxylate having a cloud point of less than 50°C as component (A), the branched-chain alcohol alkoxylate containing two oxyalkylene groups selected from an oxyethylene group, an oxypropylene group, and an oxybutylene group, and containing a branched-chain alkyl group having 6 to 20 carbon atoms; an alcohol alkoxylate having an HLB value of 16 or more and 20 or less as calculated by the Griffin method as component (B), the alcohol alkoxylate containing an oxyalkylene group selected from an oxyethylene group and an oxypropylene group, and containing a linear or branched alkyl group having 8 or more and 22 or less carbon atoms; (C) a water-soluble solvent as component; (D) an aromatic sulfonic acid or a salt thereof, and A deodorizing composition for use in food and beverage production lines, comprising water as component (E).

2. 2. The deodorizing composition for use in food and beverage production lines according to claim 1, wherein the branched alkyl group in component (A) contains a 2-ethylhexyl group and / or a 2-propylheptyl group.

3. 3. A deodorizing composition for food and beverage production lines according to claim 1 or 2, wherein the alcohol alkoxylate in component (B) is an alcohol ethoxylate propoxylate having both an oxyethylene group and an oxypropylene group, and the number of moles of ethylene oxide added is 20 or more and 100 or less.

4. 3. The deodorizing composition for food and beverage production lines according to claim 1, wherein the mass ratio (A) / (B) of the component (A) to the component (B) is 2 or more and 50 or less.

5. 3. The deodorizing composition for food and beverage production lines according to claim 1, wherein the aromatic sulfonic acid or a salt thereof of component (D) contains at least one selected from the group consisting of xylene sulfonic acid or a salt thereof, toluene sulfonic acid or a salt thereof, and cumene sulfonic acid or a salt thereof.

6. 3. The deodorizing composition for food and beverage production lines according to claim 1, wherein the mass ratio (A) / (D) of the component (A) to the component (D) is 0.1 or more and 50 or less.

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