Anti-forming agent

Abstract

To provide an anti-forming agent which achieves an excellent anti-forming property for a forming liquid having a high foamability.SOLUTION: An anti-forming agent to be used includes (A) an animal / vegetable oil, (B) at least one type of wax selected from the group consisting of petroleum wax and synthetic wax, (C) sorbitan fatty acid ester, and (D) polyglyceryl fatty acid ester. In the anti-forming agent, preferably, the content of (A) the animal / vegetable oil is 10 to 85 wt.%, the content of (B) the at least one type of wax selected from the group consisting of petroleum wax and synthetic wax is 0.5 to 15 wt.%, the content of (C) the sorbitan fatty acid ester is 10 to 70 wt.%, and the content of (D) the polyglyceryl fatty acid ester is 0.3 to 12 wt.% on the basis of the weight of (A) the animal / vegetable oil, (B) the at least one type of wax selected from the group consisting of petroleum wax and synthetic wax, (C) the sorbitan fatty acid ester, and (D) the polyglyceryl fatty acid ester.SELECTED DRAWING: None

Description

[Technical field]

[0001] The present invention relates to an antifoam agent. [Background technology]

[0002] A defoaming agent composition for use in food or feed production or in the fermentation industry is known, which is characterized in that "in a composition consisting of 10 parts of one or more lipids selected from fats and oils, polyhydric alcohol fatty acid esters, soybean phospholipids and natural waxes, the one or more lipids have been hydrolyzed with a lipid-degrading enzyme" (Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 63-28412 Summary of the Invention [Problem to be solved by the invention]

[0004] Conventional defoaming agents have the problem of being unable to provide sufficient defoaming properties. An object of the present invention is to provide a defoaming agent which can provide excellent defoaming properties even for foaming liquids with high foaming properties. [Means for solving the problem]

[0005] The present invention is characterized in that it comprises an animal and vegetable oil (A), at least one wax (B) selected from the group consisting of petroleum waxes and synthetic waxes, a sorbitan fatty acid ester (C), and a polyglycerin fatty acid ester (D).

[0006] The method for producing a food product of the present invention is characterized in that the above-described defoaming agent is added to a food raw material, a washing liquid, and / or a food intermediate in at least one food production step selected from the group consisting of a washing step, a processing step (cutting, crushing, mixing, boiling and / or heating, etc.), a molding step, and a filling step.

[0007] The method for producing a fermentation product of the present invention is characterized in that the above-mentioned antifoaming agent is added to a fermentation liquid and fermented in a fermentation step for producing at least one fermentation product selected from the group consisting of industrial materials, food materials, and pharmaceutical materials.

[0008] The animal and vegetable oil (A) is not limited as long as it is an oil obtained from an animal or plant, and examples thereof include vegetable oils (rapeseed oil, soybean oil, corn oil, palm oil, coconut oil, safflower oil, olive oil, rice oil, sesame oil, linseed oil, castor oil, cottonseed oil, sunflower oil, peanut oil, perilla oil, etc.) and animal oils (beef tallow, lard oil, mutton oil, whale oil, fish oil, etc.). Among these, vegetable oils are preferred from the viewpoint of antifoaming properties, and different types of animal and vegetable oils (A) may be used in combination.

[0009] The melting point (° C.) of the animal or vegetable oil (A) is preferably from -25 to 30° C., more preferably from -20 to 15° C., and particularly preferably from -17 to 0° C. The melting point (°C) is a value measured in accordance with JIS K0064-1992 (hereinafter the same). That is, the sample is filled into a capillary tube, and after gradually heating or cooling to a temperature about 10°C lower than the predicted melting point, it is heated so that the temperature rises about 3°C ​​per minute. After the temperature becomes about 5°C lower than the predicted melting point, heating is continued so that the temperature rises about 1°C per minute. The temperature at which the sample melts in the capillary tube and no longer appears solid is read and taken as the melting point.

[0010] Among at least one wax (B) selected from the group consisting of petroleum waxes and synthetic waxes, the petroleum waxes include paraffin waxes and microcrystalline waxes. The synthetic waxes include polyethylene waxes, oxidized polyethylene waxes, and acid-modified polyethylene waxes. Among these, paraffin waxes, microcrystalline waxes, and polyethylene waxes are preferred from the viewpoint of defoaming properties, and different types of waxes (B) may be mixed and used.

[0011] The melting point (°C) of at least one wax (B) selected from the group consisting of petroleum waxes and synthetic waxes is preferably 40 to 150, more preferably 50 to 120, and particularly preferably 61 to 110. Within this range, the defoaming property becomes even better.

[0012] The sorbitan fatty acid ester (C) includes a fatty acid monoester of sorbitan, a fatty acid diester of sorbitan, and a fatty acid triester of sorbitan, and the fatty acid constituting the sorbitan fatty acid ester (C) includes a fatty acid having 8 to 24 carbon atoms (preferably 10 to 22, more preferably 12 to 18). The sorbitan fatty acid ester (C) may be composed of the same type of fatty acid, or may be composed of some or all of different types of fatty acid. Also, different types of sorbitan fatty acid ester (C) may be mixed and used.

[0013] Examples of the sorbitan fatty acid ester (C) include sorbitan monooctanate, sorbitan monodecanate, sorbitan monododecanate, sorbitan monotetradecanate, sorbitan monohexadecanate, sorbitan monooctadecanate, sorbitan monohexadecenate, sorbitan monooctadecenate, sorbitan monooctadecenate, sorbitan monooctadecadienate, sorbitan dioctanate, sorbitan didodecanate, sorbitan dihexadecenate, sorbitan dioctadecenate, sorbitan dioctadecenate, sorbitan dioctadecadienate, sorbitan trioctanate, sorbitan tridodecanate, sorbitan trihexadecenate, sorbitan trioctadecenate, sorbitan trioctadecenate, sorbitan trioctadecenate, and sorbitan trioctadecadienate.

[0014] The polyglycerol fatty acid ester (D) includes fatty acid esters of polyglycerol having a degree of polymerization of 3 to 20, and may be a partial ester, a full ester, or a mixture thereof.

[0015] The fatty acids constituting the polyglycerol fatty acid ester (D) are the same as the fatty acids constituting the sorbitan fatty acid ester (C).

[0016] The esterification rate (mol %) of the polyglycerol fatty acid ester (D) is preferably 15-100, and more preferably 30-70.

[0017] The esterification rate (%) is calculated by determining the saponification value (K; mgKOH / g) and the hydroxyl value (H; mgKOH / g) in accordance with JIS K0070-1992 "4.1 Neutralization titration method" and then using the following formula. Esterification rate (mol%)=100K / (K+H)

[0018] Based on the weights of the animal and vegetable oils (A), at least one wax (B) selected from the group consisting of petroleum wax and synthetic wax, sorbitan fatty acid ester (C) and polyglycerin fatty acid ester (D), the content (wt%) of the animal and vegetable oil (A) is preferably 10 to 85 (more preferably 22 to 75, particularly preferably 36 to 66), the content (wt%) of at least one wax (B) selected from the group consisting of petroleum wax and synthetic wax is preferably 0.5 to 15 (more preferably 1 to 10, particularly preferably 2 to 8), the content (wt%) of the sorbitan fatty acid ester (C) is preferably 10 to 70 (more preferably 20 to 60, particularly preferably 30 to 50), and the content (wt%) of the polyglycerin fatty acid ester (D) is preferably 0.3 to 12 (more preferably 0.8 to 9, particularly preferably 1.5 to 6). Within these ranges, the defoaming properties are further improved.

[0019] The method for producing the defoaming agent of the present invention is not particularly limited, and known methods (such as those described in Japanese Patent No. 4898994) can be applied, and examples of the method that can be applied include a step of heating and stirring a part of the animal and vegetable oil (A), at least one wax (B) selected from the group consisting of petroleum waxes and synthetic waxes, a sorbitan fatty acid ester (C), and a polyglycerin fatty acid ester (D) while dissolving at least one wax (B) selected from the group consisting of petroleum waxes and synthetic waxes to obtain a solution (A'BCD), a step of adding the solution (A'BCD) to the remaining animal and vegetable oil (A) while stirring it to obtain a mixture (ABCD), and a method of subjecting the mixture (ABCD) to a micronization treatment (homogenization treatment) to obtain a defoaming agent, and the like.

[0020] The defoaming agent of the present invention may contain, in addition to the animal and vegetable oil (A), at least one wax (B) selected from the group consisting of petroleum wax and synthetic wax, the sorbitan fatty acid ester (C) and the polyglycerin fatty acid ester (D), other compounds {silicone oil (kinematic viscosity at 25°C of 100 to 30,000, including modified products), alkylene bisalkylamide (alkylene having 2 to 6 carbon atoms, alkyl having 10 to 18 carbon atoms), fatty acid aluminum (fatty acid having 10 to 18 carbon atoms), hydrophobic silica}, known additives (dispersants, emulsifiers, antifreeze agents, viscosity index improvers, etc.) and / or solvents, etc., so long as they do not impair the effects of the present invention.

[0021] When the defoaming agent of the present invention contains other compounds, known additives and / or solvents, etc., these may be mixed at any stage of the production process as long as they can be uniformly mixed with the animal and vegetable oil (A), at least one wax (B) selected from the group consisting of petroleum wax and synthetic wax, the sorbitan fatty acid ester (C), and the polyglycerin fatty acid ester (D).

[0022] In the food production method of the present invention, the location where the antifoaming agent is added to the food raw materials, cleaning liquid and / or food intermediate includes at least one food production step selected from the group consisting of a cleaning step, a processing step, a molding step and a filling step, as well as steps before these steps and steps after these steps, and also includes a waste treatment step (a step of treating waste generated by the food production method, including a wastewater treatment step).

[0023] The method of adding the antifoaming agent is not particularly limited, and the antifoaming agent may be added in advance to food raw materials, cleaning liquids and / or food intermediates, or may be added continuously or intermittently during the food production process, and the antifoaming agent can be added by either or both of these methods.

[0024] There are no particular limitations on the foods, but examples include fresh foods (vegetables, fruits, fresh fish, meat, etc.), processed foods (brewed foods, canned foods, bottled foods, retort foods, frozen foods, freeze-dried foods, etc.) and beverages (tea, coffee, cocoa, fruit juice drinks, carbonated drinks, sports drinks, non-alcoholic beverages, alcohol, processed milk, dairy drinks, soy milk, soup, etc.).

[0025] The amount of antifoaming agent added can be adjusted appropriately depending on the foaming state, and is not particularly limited, but is preferably about 0.001 to 10% by weight based on the weight of the food raw material, cleaning liquid, or food intermediate.

[0026] In the method for producing a fermentation product of the present invention, the location where the antifoaming agent is added to the fermentation liquid includes the fermentation step, a step prior to the fermentation step, and a step subsequent to the fermentation step, and also includes a waste treatment step (a step for treating waste generated by the method for producing a fermentation product, including a wastewater treatment step).

[0027] The method of adding the antifoaming agent is not particularly limited, and the antifoaming agent may be added to the fermentation liquid in advance, or may be added continuously or intermittently during the fermentation process, and the antifoaming agent can be added by either or both of these methods.

[0028] At least one fermentation product selected from the group consisting of industrial raw materials, food raw materials, and pharmaceutical raw materials includes amino acids, proteins, alcohols, carboxylic acids, carboxylic acid esters, hydroxycarboxylic acids, amines, and hydrocarbons. These fermentation products are useful substances as industrial raw materials, food raw materials, and / or pharmaceutical raw materials.

[0029] The amino acids include valine, leucine, aspartic acid, glutamic acid, and histidine.

[0030] Examples of proteins include enzymes (such as oxidoreductases, hydrolases and synthetases), hormone proteins (such as interferon α, growth hormone, insulin and glucagon), photoproteins (such as luciferase) and peptides.

[0031] Examples of alcohols include monools (methanol, ethanol, propanol, butanol, dodecanol, isooctadecanol, phenol, octadecenol, etc.); polyols (ethylene glycol, propylene glycol, diglycerin, trimethylolethane, trimethylolpropane, etc.); and sugars {monosaccharides (glycerin, erythrulose, erythritol, arabinose, xylulose, xylitol, fructose, sorbose, glucose, mannose, lactose, sorbitol, etc.), disaccharides (sucrose, lactose, trehalose, etc.), trisaccharides (raffinose, maltotriose, etc.), tetrasaccharides (acarbose, stachyose, etc.), and polysaccharides (starch, cellulose, dextrin, chitin, etc.)}.

[0032] Examples of the carboxylic acid include ethanoic acid, propanoic acid, decanoic acid, octadecenoic acid, ethanedioic acid, butanedioic acid, 2-propenoic acid, 2-methylpropenoic acid, butenedioic acid, 2-methylidenebutanedioic acid, benzoic acid, and benzenedicarboxylic acid.

[0033] Examples of the carboxylate ester include methyl formate, methyl acetate, methyl propionate, methyl pentanoate, methyl dodecanoate, ethyl acetate, propyl acetate, dodecyl acetate, methyl benzoate, benzyl benzoate, propyl benzoate, and methyl salicylate.

[0034] Examples of hydroxycarboxylic acids include 2-hydroxyethanoic acid, 2-hydroxypropanoic acid, 2,3-dihydroxypropanoic acid, 2-hydroxybutanedioic acid, 2-dihydroxybutanedioic acid, 2-hydroxypropane-1,2,3-tricarboxylic acid, and 2-hydroxybenzoic acid.

[0035] Examples of the amine include ammonia, methylamine, triethylamine, ethanolamine, triethanolamine, ethylenediamine, and triethylenetetramine.

[0036] Examples of the hydrocarbon include methane, ethane, propane, decane, dodecane, ethylene, propylene, butene, 1,3-butadiene, cyclohexane, benzene, toluene, xylene, naphthalene, and styrene.

[0037] The amount of antifoaming agent added can be adjusted appropriately depending on the foaming state, and is not particularly limited, but is preferably about 0.001 to 10% by weight based on the weight of the fermentation liquid.

[0038] There are no particular limitations on the fermentation bacteria that can be used in the fermentation step, and known microorganisms (for example, the microorganisms described in paragraph 0023 of JP-A-2013-39085 and paragraph 0012 of JP-A-2011-92188) can be used.

[0039] There are no particular limitations on the raw materials that can be used in the fermentation process as long as they do not have an adverse effect on the fermentation bacteria. Examples of usable raw materials include carbohydrate raw materials (sugar cane, molasses, sugar beet, etc.), starch raw materials (corn, sorghum, potato, etc.), cellulose raw materials (wood such as coniferous or broad-leaved trees, bagasse, corn stover, rice straw, rice husks, napier grass, kenaf, paper mulberry, mulberry reed, bamboo, etc.), livestock manure and wastewater (paper factory wastewater, etc.), as well as microbial culture media (for manufacturing foods, pharmaceuticals, etc.). EXAMPLES

[0040] Hereinafter, unless otherwise specified, parts mean parts by weight. <Production Example 1> Polyglycerin (e1) {Polyglycerin #750, Sakamoto Pharmaceutical Co., Ltd., degree of polymerization of polyglycerin is 10} 100 parts (0.13 moles), fatty acid (f1) {Lunac S-98, Kao Corporation, stearic acid, "Lunac" is a registered trademark of the company.} 157.4 parts (0.55 moles) and potassium hydroxide {special grade reagent, Fujifilm Wako Pure Chemical Industries, Ltd.} 0.8 parts were mixed under a nitrogen atmosphere, and then esterification reaction was carried out while distilling off water at 150°C under reduced pressure to obtain polyglycerin fatty acid ester (d1: esterification rate 30 mol%).

[0041] <Production Example 2> 100 parts (0.13 mol) of polyglycerol (e1), 270.8 parts (0.98 mol) of fatty acid (f2) {Lunac OV, Kao Corporation, oleic acid}, and 1.1 parts of potassium hydroxide were mixed under a nitrogen atmosphere, and then an esterification reaction was carried out while distilling off water under reduced pressure at 150°C, to obtain a polyglycerol fatty acid ester (d2: esterification rate 55 mol%).

[0042] <Production Example 3> 100 parts of polyglycerol (e1) (0.13 mol), 179 parts (0.89 mol) of fatty acid (f3) {Lunac L-98, Kao Corporation, lauric acid}, and 0.8 parts of potassium hydroxide were mixed under a nitrogen atmosphere, and then an esterification reaction was carried out while distilling off water under reduced pressure at 150°C, to obtain a polyglycerol fatty acid ester (d3: esterification rate 49 mol%).

[0043] <Production Example 4> 100 parts of polyglycerin (e2) (0.20 mol) {polyglycerin #500, Sakamoto Pharmaceutical Co., Ltd., polyglycerin polymerization degree 6}, 308.1 parts (1.34 mol) of fatty acid (f4) {Lunac MY-98, Kao Corporation, myristic acid}, and 1.2 parts of potassium hydroxide were mixed under a nitrogen atmosphere, and then an esterification reaction was carried out while distilling off water under reduced pressure at 150°C, to obtain a polyglycerin fatty acid ester (d4: esterification rate 70 mol%).

[0044] <Production Example 5> Polyglycerol (e3) {polyglycerol #310, Sakamoto Pharmaceutical Co., Ltd., polyglycerol polymerization degree 4} 100 parts (0.32 mol), fatty acid (f2) 243.2 parts (0.88 mol), and potassium hydroxide 1 part were mixed under a nitrogen atmosphere, and then an esterification reaction was carried out while distilling off water under reduced pressure at 150°C, to obtain a polyglycerol fatty acid ester (d5: esterification rate 43 mol%).

[0045] <Production Example 6> 100 parts (0.32 moles) of polyglycerin (e3), 261.4 parts (1.30 moles) of fatty acid (f3), and 1.1 parts of potassium hydroxide were mixed under a nitrogen atmosphere, and then an esterification reaction was carried out while distilling off water under reduced pressure at 150°C to obtain a polyglycerin fatty acid ester (d6: esterification rate 60 mol%).

[0046] <Example 1> 36 parts of animal and vegetable oil (a1) {rapeseed white refined oil, Nisshin Oillio Group Co., Ltd., melting point -6°C} and 8 parts of wax (b1) {Paraffin Wax-140, paraffin wax, Nippon Seiro Co., Ltd., melting point 61°C} were mixed uniformly at 80°C, and then cooled to 30°C with stirring to obtain a mixed liquid. This mixed liquid was homogenized at 4000 rpm with a homogenizer (Hiflex Disperser HG-92G, Taitec Co., Ltd., "Hiflex" is a registered trademark of Terumo Corporation) to obtain a wax dispersion. 50 parts of sorbitan fatty acid ester (c1) {Rheodol SP-L10, sorbitan monolaurate, Kao Corporation, "Rheodol" is a registered trademark of the same company} and 6 parts of polyglycerin fatty acid ester (d1) {partial stearic acid ester of polyglycerin with a polymerization degree of 10, esterification rate of 30 mol%} were added to this wax dispersion and mixed uniformly to obtain the defoaming agent (1) of the present invention.

[0047] <Example 2> 45 parts of animal and vegetable oil (a2) {cottonseed oil, Nisshin Oillio Group Co., Ltd., melting point 0°C} and 5 parts of wax (b2) {Paraffin Wax-155, paraffin wax, Nippon Seiro Co., Ltd., melting point 69°C} were mixed uniformly at 80°C, and then cooled to 30°C with stirring to obtain a mixed liquid. This mixed liquid was homogenized at 4000 rpm with a homogenizer (Hiflex Disperser HG-92G, Taitec Co., Ltd.) to obtain a wax dispersion. 47 parts of sorbitan fatty acid ester (c2) {Nonion MP-30R, sorbitan monomyristate, NOF Corporation} and 3 parts of polyglycerin fatty acid ester (d2) {partial oleic acid ester of polyglycerin with a polymerization degree of 10, esterification rate of 55 mol%} were added to this wax dispersion and mixed uniformly to obtain the defoaming agent (2) of the present invention.

[0048] <Example 3> 57 parts of animal and vegetable oil (a3) ​​{sunflower oil, J-Oil Mills, melting point -17°C} and 6 parts of wax (b3) {Hi-Mic-1090, microcrystalline wax, Nippon Seiro Co., Ltd., melting point 88°C} were mixed uniformly at 100°C, and then cooled to 30°C with stirring to obtain a mixed liquid. This mixed liquid was homogenized at 4000 rpm with a homogenizer (Hiflex Disperser HG-92G, Taitec Co., Ltd.) to obtain a wax dispersion. 35 parts of sorbitan fatty acid ester (c3) {Nonion OP-80R, sorbitan monooleate, NOF Corporation} and 2 parts of polyglycerin fatty acid ester (d3) {lauric acid partial ester of polyglycerin with a polymerization degree of 10, esterification rate of 49 mol%} were added to this wax dispersion and mixed uniformly to obtain the defoaming agent (3) of the present invention.

[0049] <Example 4> 66 parts of animal and vegetable oil (a4) {corn oil, J-Oil Mills Co., Ltd., melting point -14°C}, 4 parts of wax (b4) {Hi-Mic-2065, microcrystalline wax, Nippon Seiro Co., Ltd., melting point 75°C} and 28.5 parts of sorbitan fatty acid ester (c4) {Poem S-65V, sorbitan tristearate, NOF Corp., "Poem" is a registered trademark of Riken Vitamin Co., Ltd.} were mixed uniformly at 80°C, and then cooled to 30°C with stirring to obtain a mixed liquid. This mixed liquid was homogenized at 4000 rpm with a homogenizer (Hiflex Disperser HG-92G, Taitec Co., Ltd.) to obtain a wax dispersion. 1.5 parts of polyglycerin fatty acid ester (d4) {partial myristic acid ester of polyglycerin with a polymerization degree of 6, esterification rate of 70 mol%} were added to this wax dispersion and mixed uniformly to obtain the defoaming agent (4) of the present invention.

[0050] <Example 5> 50 parts of animal and vegetable oil (a5) {safflower oil, J-Oil Mills, melting point -5°C} and 2 parts of wax (b5) {Hiwax 220P, polyethylene wax, Mitsui Chemicals, melting point 110°C} were mixed uniformly at 120°C, and then cooled to 30°C with stirring to obtain a mixed liquid. This mixed liquid was homogenized at 4000 rpm with a homogenizer (Hiflex Disperser HG-92G, Taitec Co., Ltd.) to obtain a wax dispersion. 45 parts of sorbitan fatty acid ester (c2) and 3 parts of polyglycerin fatty acid ester (d5) {partial oleic acid ester of polyglycerin with a polymerization degree of 4, esterification rate of 43 mol%} were added to this wax dispersion and mixed uniformly to obtain the defoaming agent (5) of the present invention.

[0051] <Example 6> 60 parts of animal and vegetable oil (a1) and 5 parts of wax (b3) were mixed uniformly at 100°C, and then cooled to 30°C while stirring to obtain a mixed liquid. This mixed liquid was homogenized at 4000 rpm with a homogenizer (Hiflex Disperser HG-92G, Taitec Co., Ltd.) to obtain a wax dispersion. 30 parts of sorbitan fatty acid ester (c3) and 5 parts of polyglycerin fatty acid ester (d6) {lauric acid partial ester of polyglycerin with a polymerization degree of 4, esterification rate of 60 mol%} were added to this wax dispersion and mixed uniformly to obtain the defoaming agent (6) of the present invention.

[0052] <Comparative Example> According to Formulation Example 1 of Patent Document 1, a comparative defoamer (H) was prepared.

[0053] The defoaming agents obtained in Examples 1 to 6 and Comparative Example were used as measurement samples, and the defoaming properties were evaluated as follows.

[0054] 1. Antifoaming 1 (foaming ingredients: saponin, pectin and lecithin derived from soy milk) 40mL of soy milk (Kikkoman Delicious Unsweetened Soy Milk, Kikkoman Corporation) was placed in a measuring cylinder (100mL) with a stopcock, and the temperature was adjusted by placing it in a thermostatic bath at 60℃. 3μL of the measurement sample was then added to the soy milk, and the measuring cylinder was vigorously shaken up and down 10 times to create foam. The volume (mL) of the soy milk and foam was then read and shown in the table below. The smaller this value, the better the defoaming ability. As a blank, the volumes (mL) of soy milk and foam were read in the same manner as above, except that 3 μL of the measurement sample was not added to the soy milk, and are shown in the table below.

[0055] [Table 1]

[0056] 2. Antifoaming 2 (foaming ingredients: gelatin, collagen from chicken meat) A cooking liquid was prepared by mixing 50 parts of shredded chicken, 50 parts of minced carrots (approximately 2 mm on each side), 10 parts of powdered gelatin (Morinaga Cook Gelatin, Morinaga & Co., Ltd., "Cook Gelatin" is a registered trademark of the company), and 890 parts of ion-exchanged water. 2 μL of the measurement sample was added to 150 mL of the cooking liquid, which was then transferred to a measuring cylinder (500 mL) and kept at 90°C. A diffuser stone was inserted into the bottom of the measuring cylinder and 200 L / min of air was immediately blown in to measure the time (seconds) until the volume (mL) of the cooking liquid and foam reached 500 mL, and the time is shown in the table below. The longer this time, the better the defoaming ability. As a blank, the volumes (mL) of the cooking liquid and foam were read in the same manner as above, except that 2 μL of the measurement sample was not added to the cooking liquid, and the results are shown in the table below.

[0057] [Table 2]

[0058] 3. Antifoaming 3 (foaming components: polyoxyethylene sorbitan fatty acid ester derived from baby bottle washing, sucrose fatty acid ester, glycerin fatty acid ester) 800ml of baby bottle cleaner (100% food grade raw material baby bottle cleaner, can also be used to wash vegetables, base (water), surfactant (polyoxyethylene sorbitan fatty acid ester), surfactant (sucrose fatty acid ester), surfactant (glycerin fatty acid ester), metal sequestering agent (sodium citrate), stabilizer (ethanol), stabilizer (sodium benzoate), stabilizer (polylysine); Pigeon Corporation) 5 parts and 995 parts of ion-exchanged water were mixed to prepare a cleaning solution. 5μL of the measurement sample was added to 150mL of the cleaning solution, then transferred to a measuring cylinder (500mL) and kept at 30℃. A diffuser stone was inserted into the bottom of the measuring cylinder and 200L / min of air was immediately blown in to measure the time (seconds) until the volume (mL) of the cleaning solution and foam reached 500mL, as shown in the table below. The longer this time, the better the defoaming performance. As a blank, the volumes (mL) of the cleaning solution and foam were read in the same manner as above, except that 5 μL of the measurement sample was not added to the cleaning solution, and are shown in the table below.

[0059] [Table 3]

[0060] 4. Antifoaming 4 (foaming component: heptone derived from LB medium) A culture solution was prepared by uniformly mixing 25 parts of LB medium (Nacalai Tesque, Inc.), 5 parts of Bacillus subtilis culture solution, and 970 parts of ion-exchanged water, and 150 mL of this culture solution was placed in a measuring cylinder (500 mL) and the temperature was adjusted to 35°C. Then, 2 μL of the measurement sample was added to the culture solution, and at this temperature, a diffuser stone was inserted into the bottom of the measuring cylinder and 400 mL / min of air was immediately blown in to measure the time (seconds) until the volume (mL) of the fermentation solution and foam reached 500 mL, as shown in the table below. The longer this time, the better the defoaming ability. As a blank, the same procedure was repeated except that 2 μL of the measurement sample was not added to the culture medium, and the time (seconds) until the volume (mL) of the culture medium and foam reached 500 mL was measured and shown in the table below. The Bacillus subtilis culture medium was purchased from the NITE Biotechnology Center, and the culture medium was previously cultured using the above culture medium.

[0061] [Table 4]

[0062] 5. Antifoaming 5 (foaming ingredients: dextran derived from molasses, saponarin, polyoxyethylene sorbitan monooleate, phosphatidylcholine derived from yeast) A bioethanol fermentation liquid was prepared by uniformly mixing 30 parts of sugarcane molasses (Marukyo Nosan Co., Ltd.), 1.5 parts of polyoxyethylene sorbitan monooleate (Ionet T-80V, Sanyo Chemical Industries Co., Ltd., "Ionet" is a registered trademark of the company), 3 parts of dry yeast (Super Camellia, Nisshin Foods Co., Ltd.), and 965.5 parts of ion-exchanged water. 150 mL of this fermentation liquid was placed in a measuring cylinder (500 mL) and the temperature was adjusted to 35°C. 4 μL of the measurement sample was then added to the fermentation liquid. At this temperature, a diffuser stone was inserted into the bottom of the measuring cylinder and air was immediately blown in at 200 mL / min. The time (seconds) until the volume (mL) of the fermentation liquid and foam reached 500 mL was measured and shown in the table below. The longer this time, the better the defoaming properties. As a blank, the same procedure was repeated except that 4 μL of the measurement sample was not added to the fermentation liquid, and the time (seconds) until the volume (mL) of the fermentation liquid and foam reached 500 mL was measured and shown in the table below.

[0063] [Table 5]

[0064] The defoaming agents of the present invention (Examples 1 to 6) had extremely excellent defoaming properties compared to the conventional defoaming agents (Comparative Examples). The above results show that foaming components (glycosides such as saponin, polysaccharides such as pectin, phospholipids such as lecithin; proteins such as gelatin and collagen; surfactants such as polyoxyethylene fatty acid esters, sucrose fatty acid esters, glycerin fatty acid esters, etc.) contained in food raw materials, cleaning solutions and / or food intermediates can be prevented from causing problems due to foam in at least one food production process selected from the group consisting of a cleaning process, a processing process, a molding process and a filling process.

[0065] In addition, it is possible to prevent foaming components contained in the fermentation liquor (polypeptides such as heptone; polysaccharides such as dextran, glycosides such as saponarin, surfactants such as polyoxyethylene fatty acid esters, phospholipids such as phosphatidylcholine, etc.) from causing problems due to foam during the fermentation process in which at least one fermentation product selected from the group consisting of industrial raw materials, food raw materials, and pharmaceutical raw materials is produced.

Claims

1. A defoaming agent comprising: an animal or vegetable oil (A); at least one wax (B) selected from the group consisting of petroleum waxes and synthetic waxes; a sorbitan fatty acid ester (C); and a polyglycerin fatty acid ester (D).

2. The defoaming agent according to claim 1, wherein the content of the animal and vegetable oil (A) is 10 to 85% by weight, the content of the at least one wax (B) selected from the group consisting of petroleum waxes and synthetic waxes is 0.5 to 15% by weight, the content of the sorbitan fatty acid ester (C) is 10 to 70% by weight, and the content of the polyglycerol fatty acid ester (D) is 0.3 to 12% by weight, based on the weights of the animal and vegetable oil (A), the at least one wax (B) selected from the group consisting of petroleum waxes and synthetic waxes, the sorbitan fatty acid ester (C), and the polyglycerol fatty acid ester (D).

3. 3. A food production method, comprising adding the defoaming agent according to claim 1 or 2 to a food raw material, a washing liquid and / or a food intermediate in at least one food production process selected from the group consisting of a washing process, a processing process, a molding process and a filling process.

4. A method for producing a fermentation product, comprising adding the defoaming agent according to claim 1 or 2 to a fermentation liquid during a fermentation process for producing at least one fermentation product selected from the group consisting of industrial materials, food materials and pharmaceutical materials, and then fermenting the fermentation liquid.

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