Method for manufacturing acerola dried powder

Abstract

To provide a method for manufacturing acerola dried powder using an acerola-derived component as an additive.SOLUTION: A method for manufacturing acerola dried powder comprises a drying step of drying a mixed solution that contains an acerola fruit crushed solution or acerola juice obtained by crushing acerola fruit containing juice, and acerola ash.SELECTED DRAWING: None

Description

Technical Field

[0001] The present disclosure relates to a method for producing acerola dried powder.

Background Art

[0002] Since acerola contains vitamin C and the like, it is widely used in the food field, cosmetic field, and the like. Therefore, various methods for producing acerola dried powder by drying acerola juice have been studied.

[0003] For example, Patent Document 1 discloses a method for producing acerola dried powder including mixing acerola juice and magnesium hydroxide.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

[0005] One object of the present disclosure is to provide a method for producing acerola dried powder using an acerola-derived component as an additive.

[0006] The present inventors have found that acerola dried powder can be produced by using acerola ash as an additive. The present disclosure is based on such findings.

[0007] According to one embodiment of the present disclosure, there is provided a method for producing acerola dried powder, including a drying step of drying a mixed solution containing an acerola fruit pulverized solution or acerola juice obtained by pulverizing an acerola fruit containing juice and acerola ash. Further, according to another embodiment of the present disclosure, there is provided an ashing step of dry-heating an acerola raw material to obtain acerola ash.

[0008] A method for producing acerola ash for producing acerola dried powder, which includes the following, is provided.

[0009] According to the present disclosure, it is possible to produce acerola dried powder using an acerola-derived component as an additive. Detailed description of the invention

[0010] The present disclosure provides a technology that manufactures high-quality foods, contributes to the qualitative improvement of people's lives, and is in line with the SDGs perspective.

[0011] According to one embodiment of the present disclosure, in a method for producing acerola dried powder, a drying step of drying a mixed solution containing an acerola fruit pulverized solution or acerola fruit juice obtained by pulverizing an acerola fruit containing fruit juice and acerola ash is included. It is an unexpected fact that a natural material-based mixture of an acerola fruit pulverized solution or acerola fruit juice obtained by pulverizing an acerola fruit containing fruit juice and acerola ash shows good workability during the production process of acerola dried powder. According to one embodiment of the present disclosure, using such a natural material-based mixture, it is possible to produce acerola dried powder of good quality by a drying method such as spray drying. Hereinafter, the method of the present disclosure will be described in detail.

[0012] [Step of preparing acerola ash] According to one embodiment of the present disclosure, a step of preparing acerola ash (also referred to as the "ash preparation step" in the present disclosure) may be carried out.

[0013] [Acerola ash] In the present disclosure, the "acerola ash product" means a product obtained by heating and ashing an acerola raw material. The "acerola raw material" for obtaining the acerola ash product may be the acerola fruit itself, acerola fruit juice, acerola fruit pulverized product, or, for example, residues generated in the process of obtaining acerola fruit juice and / or acerola fruit pulverized product (for example, acerola fruit residue, acerola seed residue). The acerola fruit residue is mainly composed of seeds and the pericarp or pulp. The acerola seed residue is mainly composed of seeds. According to one embodiment of the present disclosure, the above acerola raw material includes an acerola fruit residue or an acerola seed residue. Including an acerola fruit residue or an acerola seed residue as the above acerola raw material is advantageous in that these residues that have been conventionally discarded can be effectively utilized and upcycled.

[0014] The above acerola raw material may be used after being dried in advance as needed. Examples of the drying method include freeze-drying, atmospheric drying (for example, hot air drying, cold air drying), reduced-pressure drying (for example, microwave reduced-pressure drying), heat drying, and the like. Drying the above acerola raw material in advance is advantageous in that efficient ashing is possible. Therefore, according to one embodiment of the present disclosure, the above ash product preparation step includes a step of drying the acerola raw material.

[0015] In the present disclosure, the color tone of the above-mentioned acerola ash is represented as the lightness measured using a spectrophotometer CM-600d (manufactured by Konica Minolta, Inc.). Lightness is the degree of lightness of a color. The higher the lightness, the brighter the color, and the lower the lightness, the darker the color. According to one embodiment of the present disclosure, the above-mentioned acerola ash has a lightness of 78 or more. The fact that the lightness of the above-mentioned acerola ash is 78 or more is advantageous in that the color tone of the mixed solution obtained when mixed with acerola juice is good (i.e., not black). According to a preferred embodiment of the present disclosure, the lightness of the above-mentioned acerola ash is 89 or more. The fact that the lightness of the above-mentioned acerola ash is 89 or more is not only advantageous in that the color tone of the mixed solution obtained when mixed with acerola juice is good (i.e., not black), but also particularly advantageous in that the color tone of the acerola dry powder produced using the above-mentioned acerola ash is good. In the present disclosure, when the lightness of the above-mentioned acerola ash is 89 or more, the above-mentioned acerola ash is regarded as "white". Therefore, according to a preferred embodiment of the present disclosure, the above-mentioned acerola ash is white.

[0016] The above-mentioned acerola ash may contain elements such as sodium, potassium, calcium, magnesium, iron, zinc, copper, manganese, phosphorus, oxygen, hydrogen, etc. According to one embodiment of the present disclosure, the above-mentioned acerola ash contains at least one element selected from the group consisting of potassium, calcium, and magnesium. According to one embodiment of the present disclosure, the above-mentioned acerola ash contains at least one element selected from the group consisting of potassium, calcium, and magnesium, and at least one element selected from sodium and phosphorus. According to one embodiment of the present disclosure, the above-mentioned acerola ash contains sodium, potassium, calcium, magnesium, and phosphorus. The fact that the above-mentioned acerola ash contains at least one element selected from the group consisting of potassium, calcium, and magnesium is advantageous in that it has good pH-raising ability when mixed with an acerola fruit pulverized solution obtained by pulverizing an acerola fruit containing juice or acerola juice.

[0017] According to one embodiment of the present disclosure, the sodium content in the above-mentioned Acerola ash is 0.1 to 1% by mass, preferably 0.2 to 0.8% by mass, more preferably 0.3 to 0.7% by mass based on the total amount of the above-mentioned Acerola ash.

[0018] According to one embodiment of the present disclosure, the potassium content in the above-mentioned Acerola ash is 30 to 50% by mass, preferably 31 to 49% by mass, more preferably 33 to 48% by mass based on the total amount of the above-mentioned Acerola ash.

[0019] According to one embodiment of the present disclosure, the calcium content in the above-mentioned Acerola ash is 1 to 20% by mass, preferably 2 to 18% by mass, more preferably 3 to 17% by mass based on the total amount of the above-mentioned Acerola ash.

[0020] According to one embodiment of the present disclosure, the magnesium content in the above-mentioned Acerola ash is 1 to 10% by mass, preferably 2 to 8% by mass, more preferably 3 to 5% by mass based on the total amount of the above-mentioned Acerola ash.

[0021] According to one embodiment of the present disclosure, the total content (A) of potassium, calcium and magnesium in the above-mentioned Acerola ash is 35 to 80% by mass, preferably 40 to 70% by mass, more preferably 50 to 60% by mass based on the total amount of the above-mentioned Acerola ash.

[0022] According to one embodiment of the present disclosure, the mass ratio (A / B) of the total amount (A) of potassium, calcium and magnesium in the above-mentioned Acerola ash to the total amount (B) of sodium, potassium, calcium, magnesium and phosphorus is 0.8 to 1.0, preferably 0.83 to 0.96, more preferably 0.86 to 0.93.

[0023] The acerola ash may be prepared by ashing the acerola raw material, or a pre-ashed acerola raw material may be prepared. As a method for ashing the acerola raw material, dry heating may be used, or wet heating (for example, using an acid such as nitric acid or sulfuric acid) may be used. The conditions for dry heating and wet heating (temperature, time, pressure, etc.) can be appropriately adjusted by those skilled in the art according to the type and amount of the acerola raw material used.

[0024] In the case of dry heating, the temperature is, for example, 350°C or higher and less than 750°C, preferably higher than 500°C and less than 750°C, more preferably 550°C or higher and 700°C or lower, still more preferably 550°C or higher and 650°C or lower, and even more preferably 550°C or higher and less than 650°C. Dry heating within the above temperature range is advantageous in that an acerola ash having good pH-raising ability can be obtained when mixed with an acerola fruit pulverized solution obtained by pulverizing an acerola fruit containing juice or acerola juice. Also, dry heating at 550°C or higher and 700°C or lower is advantageous in that an acerola ash can be obtained that results in a mixed solution with a good color tone (i.e., a color tone that is not black) when mixed with an acerola fruit pulverized solution obtained by pulverizing an acerola fruit containing juice or acerola juice. Furthermore, dry heating at 550°C or higher and less than 650°C is particularly advantageous in that an acerola ash with the above lightness of 89 or more can be obtained.

[0025] In the case of dry heating, the time is, for example, more than 3 hours, preferably more than 6 hours, more preferably 18 hours or more, and still more preferably 24 hours or more. Conducting the above ash preparation step for the above time is advantageous in that an acerola ash having good pH-raising ability can be obtained when mixed with an acerola fruit pulverized solution obtained by pulverizing an acerola fruit containing juice or acerola juice, an acerola ash can be obtained that results in a mixed solution with a good color tone (i.e., a color tone that is not black) when mixed with an acerola fruit pulverized solution obtained by pulverizing an acerola fruit containing juice or acerola juice, and / or it is possible to efficiently produce an acerola ash with the above lightness of 89 or more.

[0026] According to one embodiment of the present disclosure, the ash product preparation step includes a step of preparing an acerola ash product obtained by dry-heating an acerola raw material. Dry heating is advantageous in that since an acid such as sulfuric acid is not required, the acid does not remain in the acerola ash product, and an acerola ash product containing only components derived from the acerola raw material can be obtained.

[0027] According to one embodiment of the present disclosure, the ash product preparation step is a step of producing an acerola ash product having a lightness of 78 or more as measured by a spectrophotometer. According to a preferred embodiment of the present disclosure, the ash product preparation step is a step of producing an acerola ash product having a lightness of 89 or more (that is, the acerola ash product is whitened). Producing an acerola ash product having a lightness of 78 or more (preferably 89 or more) is advantageous in that the color tone of the acerola dry powder produced using this ash product is improved.

[0028] [Step of preparing a mixed solution] According to one embodiment of the present disclosure, in a method for producing acerola dry powder, a step of preparing a mixed solution containing an acerola fruit pulverized solution obtained by pulverizing an acerola fruit containing fruit juice or acerola juice and the acerola ash product (also referred to as the "mixed solution preparation step" in the present disclosure) may be carried out. In the mixed solution preparation step, the mixed solution may be obtained by mixing the acerola fruit pulverized solution or acerola juice and the acerola ash product, or a mixed solution in which the acerola fruit pulverized solution or acerola juice and the acerola ash product are pre-mixed may be used.

[0029] The mixing conditions in the case where the mixed solution preparation step includes mixing an acerola fruit pulverized solution obtained by pulverizing an acerola fruit containing fruit juice or acerola juice and the acerola ash product are not particularly limited as long as the object of the present disclosure can be achieved. For example, the mixing conditions may be 10 to 240 minutes at a rotation speed of 1,000 to 7,500 rpm at a desired temperature (for example, room temperature) using a commercially available mixing stirrer.

[0030] (Acerola fruit powder solution obtained by pulverizing acerola fruit containing juice, acerola fruit juice) The "acerola fruit juice" in the present disclosure is made from acerola fruit and is not particularly limited as long as it is a liquid obtained by squeezing, grinding, etc. the acerola fruit. The acerola fruit juice may be a clear fruit juice that does not contain insoluble solids derived from the peel or pulp, or a turbid fruit juice that contains insoluble solids derived from the peel or pulp. Also, the acerola fruit juice may be concentrated, or may be a dilution of the acerola fruit juice or a concentrated version thereof with a solvent such as water. According to one embodiment of the present disclosure, the acerola fruit juice is acerola concentrated fruit juice. The method for concentrating the acerola fruit juice may be a known method (for example, vacuum concentration method, reverse osmosis membrane concentration method, etc.).

[0031] According to one embodiment of the present disclosure, the above acerola fruit juice has a solid content concentration of 10 to 40% by mass, preferably 15 to 35% by mass, more preferably 20 to 30% by mass. The above acerola fruit juice, or a diluted or concentrated version thereof, may be further concentrated or diluted (for example, using a solvent such as water) so that the solid content concentration is within the above range.

[0032] Also, according to one embodiment of the present disclosure, the above acerola fruit juice has a pH of 2 to 4, preferably 2.5 to 3.5, more preferably 2.7 to 3.3.

[0033] In the present disclosure, the "acerola fruit pulverized product" means a product obtained by pulverizing an acerola fruit containing fruit juice by any method, and since it contains fruit juice, it becomes an acerola fruit pulverized solution. In the present disclosure, the "acerola fruit pulverized product", the "acerola fruit pulverized solution obtained by pulverizing an acerola fruit containing fruit juice", and the "acerola fruit pulverized solution" are used interchangeably. The acerola fruit pulverized product may be a directly pulverized acerola fruit containing fruit juice as long as an acerola dried powder can be obtained using this, or an acerola fruit containing fruit juice may be dried (for example, atmospheric drying, freeze-drying), frozen (for example, freezing using liquid nitrogen, air freezing, air blast freezing, contact freezing, brine freezing), etc. and then pulverized. As the equipment used for pulverization, a known pulverizer or the like may be used. The acerola fruit pulverized product may be prepared by pulverizing an acerola fruit containing fruit juice, or a pulverized acerola fruit containing fruit juice may be obtained. Using the acerola fruit pulverized product in the method of the present disclosure is advantageous from the viewpoint that a step of concentrating fruit juice is unnecessary.

[0034] The average particle diameter of the particles contained in the above acerola fruit pulverized product is, for example, 200 μm or less, preferably 150 μm or less, more preferably 100 μm or less. In particular, the fact that the average particle diameter of the particles contained in the acerola fruit pulverized product is 100 μm or less is advantageous in that drying by spray drying can be efficiently carried out. Note that the average particle diameter of the particles contained in the above acerola fruit pulverized product in the present disclosure means the average particle diameter D50 when measured with a laser diffraction particle size distribution measuring device (MasterSizer 3000, Malvern Panalytical).

[0035] According to one embodiment of the present disclosure, the above acerola fruit pulverized product has a solid content concentration of 2 to 25% by mass, preferably 3.5 to 15% by mass, more preferably 5 to 10% by mass. The above acerola fruit juice pulverized product or a diluted or concentrated product thereof may be further concentrated or diluted (for example, using a solvent such as water) so that the solid content concentration falls within the above range.

[0036] (Mixed solution) The ratio of the acerola fruit pulverized solution or acerola fruit juice obtained by pulverizing acerola fruit containing the above juice and the above acerola ash in the mixed solution containing them is not particularly limited as long as the object of the present disclosure can be achieved. For example, the mass ratio of the solid content in the acerola fruit pulverized solution or acerola fruit juice in the above mixed solution to the above acerola ash (solid content in acerola fruit pulverized solution or acerola fruit juice / acerola ash) may be 5 to 50. When using acerola fruit juice, the mass ratio of the solid content in the acerola fruit juice in the above mixed solution to the above acerola ash (solid content in acerola fruit juice / acerola ash) may be 10 to 50, preferably 15 to 40, more preferably 20 to 30. When using the acerola fruit pulverized solution obtained by pulverizing acerola fruit containing juice, the mass ratio of the solid content in the acerola fruit pulverized solution in the above mixed solution to the above acerola ash (solid content in acerola fruit pulverized solution / acerola ash) may be 5 to 25, preferably 5 to 15, more preferably 5 to 10.

[0037] According to one embodiment of the present disclosure, the pH of the above mixed solution is 4.0 or more, preferably 4.0 to 7.0, more preferably 4.3 to 6.5, still more preferably 4.5 to 6.0. By setting the pH of the above mixed solution within the above range, it is advantageous in that an acerola dry powder with better properties (for example, an acerola dry powder with a moisture value of 7.0% or less) can be obtained. According to one embodiment of the present disclosure, the above acerola ash is further added to the above mixed solution until the pH of the above mixed solution reaches the above range.

[0038] The above mixed solution may contain any other additives as long as the object of the present disclosure is not impaired. In the present disclosure, the "other additives" mean those other than the components derived from the acerola fruit pulverized solution, acerola fruit juice, or acerola ash obtained by pulverizing the acerola fruit containing fruit juice (i.e., acerola-derived components), and are those that are orally acceptable. In the present disclosure, the acerola fruit pulverized solution, acerola fruit juice, or their concentrates obtained by pulverizing the acerola fruit containing fruit juice, or the water used when diluting the above mixed solution, shall not be included in the definition of the above other additives. Therefore, according to one embodiment of the present disclosure, the above other additives are defined as "other additives (excluding water)". Examples of other additives include, but are not limited to, coloring agents, preservatives, diluents, antioxidants, etc. However, it is preferable that the above mixed solution does not contain other additives. The fact that the above mixed solution does not contain other additives is advantageous in that it is possible to produce an acerola dry powder containing only acerola-derived components without any other additives. According to one embodiment of the present disclosure, the above mixed solution does not contain other additives. According to a preferred embodiment of the present disclosure, the above mixed solution consists of an acerola fruit pulverized solution or acerola fruit juice obtained by pulverizing the acerola fruit containing the above fruit juice, the above acerola ash, and optionally water.

[0039] The above mixed solution may be directly subjected to the drying process described later, or may be subjected to the drying process described later after performing further processes such as filtration.

[0040] [Drying process of drying a mixed solution containing an acerola fruit pulverized solution or acerola fruit juice obtained by pulverizing an acerola fruit containing fruit juice and acerola ash] According to one embodiment of the present disclosure, in the production of acerola dry powder, drying of a mixed solution containing an acerola fruit pulverized solution or acerola fruit juice obtained by pulverizing the acerola fruit containing fruit juice and acerola ash (also referred to as the "mixed solution drying process" in the present disclosure) is carried out.

[0041] The drying method in the above-mentioned mixed solution drying process is not particularly limited as long as it is a method capable of drying the above-mentioned mixed solution. Examples of the drying method include spray drying (for example, spray drying), freeze drying, normal pressure drying (for example, hot air drying, cold air drying), reduced pressure drying (for example, microwave reduced pressure drying), heat drying, and the like. Conditions of the drying method (temperature, time, etc.) can be appropriately adjusted by those skilled in the art. According to one embodiment of the present disclosure, the above drying is spray drying. According to one embodiment of the present disclosure, the above drying is spray drying. Drying the above mixed solution by spray drying (especially spray drying) is advantageous in that it enables efficient mass production of acerola dried powder. Further, drying the above mixed solution by the spray drying method (especially spray drying) is advantageous in that it does not require long-term heating, and thus it is possible to prevent a decrease in the vitamin C content in the acerola dried powder due to heating. Also, since continuous operation and scale-up are possible, mass production is easy.

[0042] (acerola dried powder) The acerola dried powder obtained according to one embodiment of the present disclosure is an acerola fruit pulverized solution obtained by pulverizing an acerola fruit containing fruit juice or a dried powder derived from acerola juice.

[0043] According to one embodiment of the present disclosure, the above acerola dried powder has good properties. In the present disclosure, that the acerola dried powder "has good properties" means that at least one of the color tone, moisture value, vitamin C content, and powder recovery rate of the acerola dried powder is good.

[0044] According to one embodiment of the present disclosure, the color tone of the above-mentioned acerola dry powder can be expressed as lightness. The "lightness" at this time has the same meaning as the "lightness" defined in the color tone of the above-mentioned acerola ash. In the present disclosure, when the lightness is 76 or more, it is assumed that the color tone of the acerola dry powder is good. The fact that the acerola dry powder of the present disclosure has a lightness of 76 or more can reduce the influence of color imparting on the resulting final product (for example, the above-mentioned acerola dry powder or a further processed product thereof), and / or when the acerola dry powder is used as a product as it is, it is advantageous in that the lot difference in the color tone of the powder can be made as small as possible.

[0045] In the present disclosure, when the moisture value of the acerola dry powder is 7.0% by mass or less, it is assumed that the moisture value of the acerola dry powder is good. The fact that the moisture value of the acerola dry powder is 7.0% by mass or less is advantageous in that the acerola dry powder is less likely to aggregate and form lumps during storage. The moisture value of the acerola dry powder in the present disclosure is calculated as the ratio of the mass decreased compared to the acerola dry powder before drying when 1.0 to 1.5 g of the acerola dry powder is dried at 105°C for 3 hours. More specifically, when the mass of the acerola dry powder after drying 1.0 g of the acerola dry powder at 105°C for 3 hours is X g, the moisture value of the acerola dry powder is calculated based on the following formula.

[0046]

Number

[0047] According to one embodiment of the present disclosure, when the vitamin C content of the above-mentioned acerola dry powder is 15% by mass or more, the acerola dry powder may be considered good. The vitamin C content in the above-mentioned acerola dry powder may be measured by high performance liquid chromatography based on the Japanese Food Composition Tables 2015 Edition (Seventh Revised) Analysis Manual, or by the indophenol method. According to a preferred embodiment of the present disclosure, the vitamin C content of the above-mentioned acerola dry powder is 18% by mass or more, more preferably 20% by mass or more, and still more preferably 22% by mass or more.

[0048] In the present disclosure, when the powder recovery rate is more than 50%, the acerola dried powder is considered good. The powder recovery rate in the present disclosure is a value expressed as a percentage of the mass of the obtained acerola dried powder with respect to the mass of the solid content in the acerola fruit pulverized solution or acerola fruit juice obtained by pulverizing the acerola fruit containing the fruit juice used for the production of the acerola dried powder, and is calculated based on the following formula.

[0049]

Number

[0050] According to a preferred embodiment of the present disclosure, the powder recovery rate of the acerola dried powder is 55% or more, more preferably 60% or more.

[0051] According to an embodiment of the present disclosure, the average particle diameter of the above acerola dried powder is 1 to 200 μm, preferably 10 to 180 μm, more preferably 20 to 120 μm. The average particle diameter of the above acerola dried powder in the present disclosure means the average particle diameter D50 when measured with a laser diffraction particle size distribution measuring device (MasterSizer 3000, Malvern Panalytical).

[0052] The above acerola dried powder may contain any of the above other additives as long as the object of the present disclosure is not impaired. According to an embodiment of the present disclosure, the above acerola dried powder does not contain the above other additives. The fact that the above acerola dried powder does not contain the above other additives makes it possible to produce an acerola dried powder substantially derived from 100% acerola raw materials, which is advantageous in that there are no health concerns compared to conventional acerola dried powders containing other additives.

[0053] According to another embodiment of the present disclosure, there is provided aacerola dry powder comprising a dried product of aacerola fruit pulverization solution obtained by pulverizing aacerola fruit containing the above juice or a dried product of the above aacerola fruit juice, and a dried product of the above aacerola ash. According to another preferred embodiment of the present disclosure, there is provided aacerola dry powder comprising a dried product of aacerola fruit pulverization solution obtained by pulverizing aacerola fruit containing the above juice or a dried product of the above aacerola fruit juice, a dried product of the above aacerola ash, and optionally water.

[0054] According to another embodiment of the present disclosure, there is provided aacerola dry powder produced by the method of the present disclosure.

[0055] According to another embodiment of the present disclosure, there is provided a method for drying aacerola fruit pulverization solution or aacerola fruit juice obtained by pulverizing aacerola fruit, the method comprising the step of drying the aacerola fruit pulverization solution or aacerola fruit juice together with aacerola ash.

[0056] [Use of Acerola Dry Powder] The above aacerola dry powder can be used as it is or in combination with other materials. According to one embodiment of the present disclosure, the above aacerola dry powder can be used as it is, encapsulated in capsules, or processed into tablets or the like by tableting and used as a food (food composition). Further, the above aacerola dry powder may be added, for example, for the purpose of supplementing vitamin C to other food ingredients or foods (for example, bread), or for the purpose of preventing oxidation of other food ingredients or foods (for example, meat).

[0057] [Acerola Ash and Method for Producing the Same] According to another embodiment of the present disclosure, there is provided a method for producing aacerola ash for producing aacerola dry powder, the method comprising an ashing step of dry-heating aacerola raw material to obtain aacerola ash.

[0058] In the method for producing acerola ash, the "ashing step of obtaining acerola ash by dry-heating the acerola raw material" is the same as the method, conditions, etc. in the ash preparation step described above in the method for producing acerola dry powder, particularly in the step of "preparing acerola ash obtained by dry-heating the acerola raw material". Further, the acerola raw material in the above ashing step and the acerola ash obtained by the method including the above ashing step have the same meaning as the "acerola raw material" and "acerola ash" described above in this specification.

[0059] According to one embodiment of the present disclosure, the above ashing step is a step of producing acerola ash having a lightness of 78 or more measured by a spectrophotometer. According to a preferred embodiment of the present disclosure, the above ashing step is a step of producing acerola ash having the above lightness of 89 or more (that is, the above acerola ash is whitened).

[0060] According to one embodiment of the present disclosure, the above ashing step is carried out at 550 to 700 °C.

[0061] According to one embodiment of the present disclosure, in the method for producing acerola ash, the above acerola raw material includes acerola fruit residue or acerola seed residue.

[0062] According to another embodiment of the present disclosure, there is provided acerola ash for producing acerola dry powder produced by the method of the present disclosure.

[0063] [Use of Acerola Ash] The above acerola ash can be suitably used in the method for producing acerola dry powder of the present disclosure. Therefore, according to one embodiment of the present disclosure, there is provided acerola ash for producing acerola dry powder. According to another embodiment of the present disclosure, there is provided acerola ash for drying an acerola fruit pulverized solution or acerola fruit juice obtained by pulverizing an acerola fruit containing fruit juice.

[0064] According to another embodiment of the present disclosure, there is provided the use of acerola ash for producing acerola dry powder by mixing with the above acerola fruit pulverized solution or acerola juice and drying.

[0065] According to another embodiment of the present disclosure, there is provided a method for drying acerola, including the step of mixing an acerola fruit pulverized solution or acerola juice obtained by pulverizing an acerola fruit containing juice with acerola ash.

[0066] The present disclosure includes the following. [1] A drying step of drying a mixed solution containing an acerola fruit pulverized solution or acerola juice obtained by pulverizing an acerola fruit containing juice and acerola ash, for producing acerola dry powder. A method for producing acerola dry powder, including the above. [2] A step of preparing acerola ash obtained by dry-heating an acerola raw material. The method according to [1], including the above. [3] The method according to [2], wherein the above acerola raw material contains acerola fruit residue or acerola seed residue. [4] The method according to [2] or [3], wherein the temperature of the above dry-heating is 550 to 700 °C. [5] The method according to any one of [1] to [4], wherein the above acerola ash is white. [6] The method according to any one of [1] to [5], wherein the sodium content in the above acerola ash is 0.1 to 1% by mass based on the total amount of the above acerola ash. [7] The method according to any one of [1] to [6], wherein the potassium content in the above acerola ash is 30 to 50% by mass based on the total amount of the above acerola ash. [8] The method according to any one of [1] to [7], wherein the calcium content in the above acerola ash is 1 to 20% by mass based on the total amount of the above acerola ash. [9] The method according to any one of [1] to [8], wherein the magnesium content in the above acerola ash is 1 to 10% by mass based on the total amount of the above acerola ash. 〔10〕The method according to any one of 〔1〕~〔9〕, wherein the mass ratio (A / B) of the total amount (A) of potassium, calcium and magnesium to the total amount (B) of sodium, potassium, calcium, magnesium and phosphorus in the above acerola ash is 0.8 to 1.0. 〔11〕The method according to any one of 〔1〕~〔10〕, wherein the pH of the above mixed solution is 4.0 or higher. 〔12〕The method according to any one of 〔1〕~〔11〕, wherein the mass ratio (solid content in the acerola fruit pulverized solution or acerola fruit juice / acerola ash) of the solid content in the acerola fruit pulverized solution or acerola fruit juice and the acerola ash in the above mixed solution is 5 to 50. 〔13〕The method according to any one of 〔1〕~〔12〕, wherein the above drying step is drying by spray drying. 〔14〕Acerola dried powder containing the dried product of the acerola fruit pulverized solution obtained by pulverizing an acerola fruit containing juice or the dried product of acerola fruit juice and the dried product of acerola ash. 〔15〕An ashing step of dry-heating an acerola raw material to obtain acerola ash A method for producing acerola ash for producing acerola dried powder, comprising the above steps. 〔16〕The method according to 〔15〕, wherein the above ashing step is a step of producing acerola ash having a lightness of 78 or more measured by a spectrocolorimeter. 〔17〕Use of acerola ash for producing acerola dried powder by mixing with an acerola fruit pulverized solution obtained by pulverizing an acerola fruit containing juice or acerola fruit juice and drying.

Examples

[0067] Hereinafter, the method of the present disclosure will be described in more detail using examples. However, the following examples are not intended to limit the method of the present disclosure in any way. Unless otherwise specified, the percentages and ratios described in this specification are by mass. Also, unless otherwise specified, the units and measurement methods described in this specification are based on the provisions of Japanese Industrial Standards (JIS).

[0068] [Examples 1 to 12: Production of Acerola Ash 1] 40 g of the dried product of acerola fruit residue or acerola seed residue was subjected to dry heat treatment at 550 °C for 1 to 48 hours to obtain the acerola ash of Examples 1 to 12. The recovery amounts and color tones of the acerola ash obtained in Examples 1 to 12 are shown in Table 1. The color tone was evaluated visually and by lightness. For the evaluation of lightness, a spectrophotometer (CM-600d, manufactured by Konica Minolta, Inc.) was used.

[0069] [Table 1-1] [Table 1-2]

[0070] [Test Example 1: Evaluation of Color Tone and pH of Mixed Solution Using Acerola Ash 1] The color tone (visual) and pH of a mixed solution obtained by mixing 50 g of an acerola concentrated fruit juice solution (pH 3.15) diluted to a solid content concentration of 15% and 0.5 g of the acerola ash obtained in Examples 1 to 12 were evaluated. The results are shown in Table 2.

[0071] [Table 2]

[0072] From the results of Examples 1 to 12, acerola ash was obtained under any conditions (40 g of dried product: 550 °C / 1 to 48 hours). When using the dried product of acerola fruit residue, it is considered that by treating at 550 °C for 3 hours or more (preferably more than 3 hours, more preferably more than 18 hours, still more preferably 24 hours or more), an acerola ash closer to white can be obtained. When using the dried product of acerola seed residue, it is considered that by treating at 550 °C for 3 hours or more (preferably more than 6 hours, more preferably 18 hours or more), an acerola ash closer to white can be obtained. Also, from the results of Test Example 1, the acerola ash obtained in Examples 1 to 12 had a pH increasing effect. When using the dried product of acerola fruit residue, by treating it at 550 °C for more than 3 hours (preferably 6 hours or more, more preferably more than 18 hours, still more preferably 24 hours or more), it is considered that an acerola ash with a better color tone in the mixed solution can be obtained (Table 2, Examples 3 to 6). When using the dried product of acerola seed residue, by treating it at 550 °C for more than 3 hours (preferably more than 6 hours, more preferably 18 hours or more), it is considered that an acerola ash with a better color tone in the mixed solution can be obtained (Table 2, Examples 9 to 12). On the other hand, in the case of a shorter treatment time than this, that is, when the brightness of the obtained acerola ash is less than 78, from the viewpoint that the color tone of the mixed solution (acerola juice-containing solution) may be blackened by the components that do not become white-gray (preferably white), it is considered not preferable.

[0073] [Examples 13 - 28: Production of Acerola Ash 2] 40 g of the dried product of acerola fruit residue or acerola seed residue was subjected to dry heat treatment at 350 to 750 °C for 24 hours to obtain the acerola ash of Examples 13 to 28. The recovery amount and color tone of the acerola ash obtained in Examples 13 to 28 are shown in Table 3. The color tone was evaluated in the same manner as in the above "Production of Acerola Ash 1".

[0074]

Table 3 - 1

Table 3 - 2

[0075] [Test Example 2: Evaluation of Color Tone and pH of Mixed Solution Using Acerola Ash 2] The color tone (visual) and pH of a mixed solution obtained by mixing 50 g (pH 3.15) of acerola concentrated juice diluted to a solid content concentration of 15% and 0.5 g of the acerola ash obtained in Examples 13 to 28 were evaluated. The results are shown in Table 4.

[0076]

Table 4

[0077] From the results of Examples 13 to 28, acerola ash was obtained under any conditions (40 g of dry matter: 350 to 750 °C / 24 hours). When using the dry matter of acerola fruit residue, by treating at 350 °C or higher and less than 750 °C (preferably exceeding 500 °C and less than 750 °C, more preferably 550 °C or higher and 700 °C or lower, even more preferably 550 °C or higher and less than 650 °C) for 24 hours, it is considered that an acerola ash closer to white can be obtained. When using the dry matter of acerola seed residue, by treating at 350 °C or higher and less than 750 °C (preferably exceeding 500 °C and 700 °C or lower, more preferably 550 °C or higher and 700 °C or lower, even more preferably 550 °C or higher and 650 °C or lower) for 24 hours, it is considered that an acerola ash with a better color tone can be obtained. Also, from the results of Test Example 2, the acerola ash obtained in Examples 13 to 28 had a pH-raising effect. When using the dry matter of acerola fruit residue, by treating at exceeding 500 °C and less than 750 °C (preferably 550 °C or higher and 700 °C or lower) for 24 hours, it is considered that a mixed solution with a better color tone can be obtained (Table 4, Examples 16 to 19). When using the dry matter of acerola seed residue, by treating at exceeding 350 °C and less than 750 °C (preferably exceeding 500 °C and less than 750 °C, more preferably 550 °C or higher and 700 °C or lower) for 24 hours, it is considered that a mixed solution with a better color tone can be obtained (Table 4, Examples 22 to 27). On the other hand, when the treatment temperature is lower than this, that is, when the brightness of the obtained ash is less than 78, from the viewpoint that the color tone of the mixed solution (acerola juice-containing solution) may be blackened by the components that do not become white-gray (preferably white), it is considered unfavorable. Also, when treating at 750 °C or higher, solidified components are generated, which is considered unfavorable from the viewpoint that the acerola ash is difficult to dissolve in the mixed solution (acerola juice-containing solution).

[0078] [Test Example 3: Elemental Analysis of Acerola Ash] For the acerola ash obtained under the same conditions as in Example 6 and Example 12, elemental analysis was performed using atomic absorption spectrometry for sodium and potassium, and ICP emission spectrometry for calcium, magnesium, phosphorus, iron, zinc, copper, and manganese. The ashing conditions of the acerola ash used for elemental analysis were heating at 550 °C for 48 hours. The results are shown in Table 5. Note that the ashed components are considered to exist as salts such as oxides, hydroxides, and carbonates, but the measured values in Table 5 indicate the amount of elements (g) in 100 g of acerola ash.

[0079] [Table 5]

[0080] From the results of Test Example 3, the acerola ash contained elements such as sodium, potassium, calcium, magnesium, and phosphorus. On the other hand, iron, zinc, copper, and manganese were less than 0.1 g / 100 g. The remainder is considered to be elements (such as oxygen atoms) derived from hydroxides, oxides, etc. Potassium is thought to become potassium carbonate upon ashing and exhibit alkalinity when dissolved in water. Also, calcium and magnesium are thought to become oxides or hydroxides upon ashing and exhibit alkalinity when dissolved in water. Both Example 6 (i.e., the ash of acerola fruit residue) and Example 12 (i.e., the ash of acerola seed residue) had the same total amount of potassium, calcium, and magnesium contained in 100 g of acerola ash. Therefore, it is considered that both the acerola ash derived from acerola fruit residue and the acerola ash derived from acerola seed residue have the same pH-raising effect when mixed with acerola juice or acerola fruit powder.

[0081] [Example 29: Production of Acerola Dried Powder Using Acerola Ash 1] 24.3 g of the acerola ash obtained in Example 17 and 320 g of acerola concentrated juice (pH 3.02) diluted to a solid content concentration of 25% were mixed to obtain a mixed solution (pH 5.20). The obtained mixed solution was spray-dried at an inlet temperature of 170 to 180°C and an outlet temperature of 95 to 100°C using an L-8i type spray dryer (manufactured by Okawara Chemical Machinery Co., Ltd.) to obtain acerola dried powder containing only acerola-derived components. The powder recovery rate, moisture content, and vitamin C content of the acerola dried powder obtained in Example 29 were measured. The powder recovery rate and moisture content were calculated by the following formulas, and the vitamin C content was measured by the indophenol method. The results are shown in Table 6.

[0082]

Number

[0083]

Number

[0084]

Table 6

[0085] [Example 30: Production of Acerola Dried Powder Using Acerola Ash 2] In Example 29, except that the "acerola ash obtained in Example 25" was used instead of the acerola ash obtained in Example 17, the same method was carried out to obtain acerola dried powder containing only acerola-derived components (note that the pH of the mixed solution in Example 30 was 4.97). The powder recovery rate, moisture content, and vitamin C content of the acerola dried powder obtained in Example 30 were measured in the same manner as in Example 29. The results are shown in Table 6.

[0086] [Example 31: Production of Acerola Dried Powder Using Acerola Ash 3] After chopping the acerola fruit, it was pulverized three times with a mascoloider to obtain an acerola fruit pulverized product (solution) with an average particle size of 100 μm or less. 600 g of the acerola fruit pulverized solution diluted to a solid content concentration of 7.6% was mixed with 7.3 g of the acerola ash product of Example 25 to obtain a mixed solution (pH 4.63). The obtained mixed solution was spray-dried at an inlet temperature of 170 to 180°C and an outlet temperature of 95 to 100°C using an L-8i type spray dryer (manufactured by Okawara Chemical Machinery Co., Ltd.) to obtain an acerola dried powder containing only components derived from acerola. The powder recovery rate, moisture value, and vitamin C content of the acerola dried powder obtained in Example 31 were measured in the same manner as in Example 29. The results are shown in Table 6.

[0087] [Reference Example 1: Production of Acerola Dried Powder 4] The acerola concentrated juice (pH 3.02) diluted to a solid content concentration of 25% was spray-dried at an inlet temperature of 170 to 180°C and an outlet temperature of 95 to 100°C using an L-8i type spray dryer (manufactured by Okawara Chemical Machinery Co., Ltd.). As a result, the spray-drying process could not be carried out appropriately, and an acerola dried powder could not be obtained.

[0088] [Reference Example 2: Production of Acerola Dried Powder 5] After chopping the acerola fruit, it was pulverized three times with a mascoloider to obtain an acerola fruit pulverized product (solution) with an average particle size of 100 μm or less. The acerola fruit pulverized product diluted to a solid content concentration of 7.6% was spray-dried at an inlet temperature of 170 to 180°C and an outlet temperature of 95 to 100°C using an L-8i type spray dryer (manufactured by Okawara Chemical Machinery Co., Ltd.). As a result, the spray-drying process could not be carried out appropriately, and an acerola dried powder could not be obtained.

[0089] From the results of Examples 29 to 31, an acerola dried powder having good properties was obtained. On the other hand, with the methods of Reference Examples 1 and 2, an acerola dried powder with good properties could not be obtained.

[0090] According to the method of the present disclosure, it is advantageous in that acerola-derived components can be used as additives to produce acerola dry powder. Further, according to one embodiment of the present disclosure, it is advantageous in that acerola dry powder can be produced without using any other additives. Furthermore, according to one embodiment of the present disclosure, since acerola fruit residues and / or acerola seed residues can be effectively utilized, it is advantageous in that they can be upcycled.

Claims

1. A drying step of drying a mixed solution containing a camu-camu fruit pulverization solution or camu-camu fruit juice obtained by pulverizing camu-camu fruit containing juice and camu-camu ash A method for producing camu-camu dried powder, comprising the step of

2. A step of preparing camu-camu ash obtained by dry-heating a camu-camu raw material The method according to claim 1, comprising the step of

3. The method according to claim 2, wherein the camu-camu raw material contains camu-camu fruit residue or camu-camu seed residue

4. The method according to claim 2, wherein the temperature of the dry heating is 550 to 700 °C

5. Camu-camu dried powder containing a dried product of a camu-camu fruit pulverization solution obtained by pulverizing camu-camu fruit containing juice or a dried product of camu-camu fruit juice and a dried product of camu-camu ash

6. An ashing step of dry-heating a camu-camu raw material to obtain camu-camu ash A method for producing camu-camu ash for producing camu-camu dried powder, comprising the step of

7. The method according to claim 6, wherein the ashing step is a step of producing camu-camu ash having a lightness of 78 or more measured by a spectrocolorimeter

8. Use of camu-camu ash for producing camu-camu dried powder by mixing with a camu-camu fruit pulverization solution or camu-camu fruit juice obtained by pulverizing camu-camu fruit containing juice and drying

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