KR910004869B1 - Process for powder composition with evening primrose seed oil and its powder composition - Google Patents

Abstract

Powder formulation contg. evening primrose seed oil, esp. gamma- linolenic acid ester (I) comprises (I) 10-50%; sugar 40-60% as one of corn syrup, glucose or lactose; Na caseinate 3-10%; emulsifier 0.1-3% as mixture of soy phospholipid and sorbitan fatty acid ester or monoglyceride; CMC 1-5% as builder. The powder is produced by emulsifying the formulation for 30-80 min. as o/w type to prevent (I) oxidation, and spray-drying at 40-70 deg.C, 180-320 kg/cm2 pressure with 150-200 deg.C at the injection. The peroxide value of this formulation is less increased at 5 deg.C and 35 deg.C than normal storage at 5 deg.C.

Description

Preparation method of powder composition containing evening primrose oil and its powder composition

1 is a schematic diagram of a processing apparatus showing a manufacturing method of the present invention.

2 is a graph in which the change of P.O.V. during storage in the product (A) and evening primrose oil (B) according to the present invention is prepared.

* Explanation of symbols for main parts of the drawings

1 mixed liquid reaction tank 2 homogenizer

3: spray dryer 4: heating apparatus

5: air disperser 6: final product

7: suction duct 8: cyclone

● ― ●: Change of curve when moonshine oil is stored at 35 ℃ (RH 75%)

○… ○: curve change when storing the moonshine oil at 5 ℃

■ ― ■: curve change when the product of the present invention is stored at 35 ° C. (RH 75%)

□ ― □: Change in curve when the product of the present invention is stored at 5 ° C.

The present invention relates to a method for producing a powder composition containing evening primrose seed oil and a powder composition thereof.

More specifically, a composition comprising a fixed amount of evening primrose seed oil or γ-linolenic acid ester obtained from evening primrose seed, or a sugar or a combination of one or two of a certain component in the sugar, glucose and lactose, casein soda, buffer, emulsifier, CMC and salt The present invention relates to a powder composition containing evening primrose seed oil or γ-linolenic acid ester obtained by spray drying, and the powder composition obtained by sufficiently mixing the composition to be sterilized, homogenized and spray dried.

Generally, evening primrose oil is a polyunsaturated fatty acid called vitamin F, which contains linoleic acid and γ-linolenic acid.

Such unsaturated fatty acids bind to (oxidize) oxygen in the air and change into lipid peroxide, thus making them useless substances, and when absorbed by the human body, they perform various harmful metabolism.

For example, it promotes aging of cells or lowers C-AMP activity, thereby lowering the immunity of the immune system.

Therefore, in order to increase the stability of the polyunsaturated fatty acid, methyl or ethyl groups are added and stored with nitrogen. However, in general, handling is inconvenient and once opened, it comes into contact with oxygen in the air and becomes unstable.

Therefore, in order to solve the above-mentioned drawbacks, the present invention is coated with evening primrose seed oil or γ-linolenic acid ester with a stable material to block the contact with oxygen in the air so that anyone can handle it safely in any environment. It is a new technique aimed at the composition and its manufacturing method.

The present invention is prepared by the above-mentioned powder composition to prepare foods added to infant formula or baby food, or can be added to milk or coffee as a favorite food, eaten, molded into tablets and studied to be easily taken as a result of the present invention Will be completed.

Therefore, according to the present invention, evening primrose seed oil or gamma-linolenic acid is dried by pulverizing a mixture obtained by mixing the evening primrose seed oil or gamma-linolenic acid ester with the above saccharides, casein soda, buffer, emulsifier, CMC, etc. Powder composition containing evening primrose seed oil or γ-linolenic acid ester which can be added to other foods by increasing the shelf life and stabilizing by other excipients without any change in the main composition, and well dissolved in water The purpose is to provide a method. Specific technical configuration for achieving this purpose is described in detail below.

First, the apparatus which can manufacture the said powder composition is demonstrated.

The apparatus treated by the present invention is conventional, in which reaction tanks, homogenizers, spray dryers, heating apparatuses, air dispersers, suction ducts and cyclones of the mixture are arranged as shown in FIG.

The required mixture is first mixed into the reaction tank of the mixture, mixed, and then sterilized for a predetermined time while maintaining a constant temperature and subjected to a homogeneous mixing treatment.

When the mixing process is completed, the mixture is then transferred to a homogenizer, and the emulsion reaction is carried out so that the particle size of evening primrose seed oil or γ-linolenic acid ester is kept constant while maintaining a homogeneous pressure.

The reaction mixture is then fed to the spray dryer by means of a nebulizer.

Here, the reaction mixture is dried by powdering by instantaneous contact with hot air.

Spray drying process is provided with a rotating disk, a high pressure nozzle or a fluid nozzle to supply the hot air while spraying the atomized liquid to be dried by the reverse flow or co-flow of the liquid and hot air sprayed.

A powder composition containing dried evening primrose oil or γ-linolenic acid ester is obtained as a final product, and the non-granulated fine powder is recovered by a cyclone, and in the spray tank, a suction duct is installed to exhaust hot air.

Next, the composition component to be processed is described below. Evening primrose seed oil as a main raw material, sugars, casein soda, a buffer, an emulsifier, distilled water, etc. are needed as a raw material.

Evening primrose seed oil is used as a main raw material of the present invention after deoxidation and deodorization of the evening primrose seed oil obtained from the evening primrose seed, washed with water and washed with water. In addition, commercial evening primrose oil can also be used.

Furthermore, γ-linolenic acid ester can be used as a substitute of evening primrose seed oil as a commercially available product which esterified γ-linolthenic acid contained in evening primrose seed oil. Has the same effect.

The acceptable range for the composition according to the present invention is 10 to 50 wt% and the preferred range is 10 to 40 wt%.

If the evening primrose oil is less than 10wt% there is no product value, if more than 50wt% there is a lot of surface oil (fur oil) is a poor product.

Therefore, it is technically difficult to identify the optimal range of evening primrose oil.

As a side feed, casein soda plays a role in supplying proteins that are not present in the fats and oils and most importantly in surrounding the fines of fats and oils. The amount of casein soda added is preferably in the range of 3 to 10 wt%. If it is 10wt% or more, the viscosity of the mixed raw materials will not be well sprayed in operation, and if it is 3wt% or less, it becomes a product, and the components of surface oil, which are important characteristics, become many and become defective products.

The buffer serves to suppress the precipitation of the mixture and to prevent the coagulation of the protein contained in casein soda so that it can be coated according to the purpose. The buffering agent is dibasic potassium phosphate (or dibasic sodium phosphate), which is preferably 1 to 5 wt% (pH 4.2 to 8.0). Various emulsifiers may be used, but any that are permitted as food additives may be used. Soybean phospholipi d, sorbitan fatty acid ester, or monoglyceride is preferably used in combination of two or more components. The amount of the emulsifier added is preferably in the range of 0.1 to 3 wt%. When the added amount of the emulsifier is 0.1 wt% or less and 3 wt% or more, the emulsification becomes unstable and is not suitable. It is most preferable to use a sugar having a dextrin value (DE) of 15-18 as a sugar complexed with one or two components in low sugar, glucose and lactose. Sugars that are higher than those are poorly spray dried and those that are lower than this can cause difficulty in working.

The sugar is preferably in the range of 40-60 wt%, and the coating is incomplete when it is 40 wt% or less and economical when it is 60 wt% or more. Among other additives, CMC may be added in a trace amount as 0.05 to 0.2 wt% as a viscosity increasing agent. An appropriate amount of salt can be added as a mating agent. Finally, the process performed by the processing apparatus of FIG. 1 will be described below.

In a reaction tank of the composition mixture, an evening primrose seed oil or γ-linolenic acid ester and a sugar, and an amount of an emulsifier are first added, and then a buffer, casein soda and an emulsifier are dissolved in water and mixed in the reaction tank. At this time, the temperature is preferably in the range of 40-70 ° C. and the emulsification time is preferably 30-80 minutes. And, when homogenizing the mixture in a homogenizer, the homogeneous pressure is preferably maintained in the range of 180-320 kg / cm 2.

In the next process, when the powder is formed by instantaneous contact by hot air in the spray dryer, the hot air temperature at the inlet of the spray dryer should be limited to 150-200 ° C.

And, the temperature of the outlet should be adjusted to a temperature range of 80-120 ℃. The nozzle rotation speed of the spray dryer used in the spray dryer is most ideal when the particle size of the composition of the powder evening primrose oil and the coating effect of the evening primrose seed oil or γ-linolenic acid ester when operating at a speed of 9000-15000rpm.

Accordingly, the present invention is to prepare a powder composition containing evening primrose seed oil or γ-linolenic acid ester, one or two or more of a sugar syrup, glucose or lactose in evening primrose seed oil or γ-linolenic acid ester, and casein soda The mixture obtained by homogenizing and mixing the buffer and the emulsifier is maintained at a temperature of 40-70 ° C., emulsified under the conditions of 180-320 kg / cm 3, and then spray-dried instantaneously (hot air inlet temperature 150). -200 ℃) characterized in that the powder, characterized in that the composition obtained in the manufacturing process is composed of evening primrose seed oil or γ-linolenic acid ester 10-50wt%, the saccharide 40-60wt%, casein soda 3-10wt %, Emulsifier 0.1-3 wt%, Buffer 1-5 wt% and instantaneous spray drying powder containing evening primrose oil or γ-linolenic acid ester Obtaining a hydrous product has its features.

As described above, the evening primrose seed oil and γ-linolenic acid ester are emulsified in O / W type to fix and coat solid components contained in water on the oil surface, and hot air does not directly contact the oil, so the evening primrose oil or γ-linolenic acid ester 2 It is coated to keep it stable without breaking the heavy bond. It will be described in more detail according to the following examples.

Example 1

end. Manufacturing and Processing Process of Evening Primrose Oil

In order to prepare the evening primrose seed oil as the main raw material in the present invention, wildflowers are taken from the evening primrose seeds, which are the fruits of the evening primrose, to remove foreign substances, take about 250kg of selected evening primrose seeds and crushed into a mill (Roller Mill) and then crushed about 2000ℓ capacity extractor Add 600 L of food additive, N-hexane, extract for 2 hours at 50-100 ℃, separate the extract and transfer to 2000 L container. Wash the residue twice with 400 L of food additive, N-hexane, combine with the first extract and depressurize. Recover N-hexane and take evening primrose oil. If necessary, this evening primrose oil was deoxidized and deodorized in a general manner, washed with water, and used as a main raw material of powder evening primrose oil.

I. Manufacturing process of powder composition by the treatment apparatus of FIG.

Into the reaction tank (1), add 30 wt% of evening primrose oil and 60 wt% of subsidiary mortgage, glucose or lactose prepared in the above process, and add 5 wt% of casein soda, 3 wt% of buffer, and wt% of emulsifier. Dissolved in and mixed, and then sterilized and mixed for 60 minutes while maintaining 50-60 ° C.

Then, the mixture was transferred to a homogenizer (2) and completely emulsified so that the particle size of the evening primrose oil was 5-10 μm while maintaining the homogeneous pressure at 210 kg / cm ² . This reaction mixture was fed to a spray dryer (3) via a sprayer.

In the present invention, the reaction mixture (mixed raw material) is dried and powdered by instantaneous contact with hot air. In the spray drying process, by spraying the atomized liquid with a rotating disk, a high pressure nozzle or a fluid nozzle, hot air is supplied to co-flow or countercurrent the sprayed liquid and hot air.

In the present invention, this drying process is a very important process, if the conditions given are different, it will cause a change or variation in the unsaturated fatty acid as an active ingredient. Therefore, the reaction mixture supplied into the spray dryer 3 is sprayed while the heated air supplied from the heating apparatus 4 is instantaneously dispersed through the air disperser 5 so that the spray of the liquid phase reaction mixture is heated. It dried instantly by air (hot air) and it became a powder granular product.

In particular, in the present invention, the hot air temperature of the inlet injected into the spray dryer is limited to 170 ° C., the temperature of the outlet is controlled to be 100 ° C., and the rotation speed of the injection rotating disk of the liquid reactant is maintained at 9000-15000 rpm. The best conditions are that the feed rate of the liquid phase reaction mixture is 200-300 L / hr and the heat supply of the hot air is 100,000-150,000 kcal / hr.

Thus, the powdered evening primrose oil dried according to the present invention can obtain a final product (6) having a constant particle size and a slightly peculiar smell, wherein the non-granulated fine powder is recovered by a cyclone (8), and also a spray dryer In (3), a suction duct 7 is provided as an accessory to exhaust the hot air.

The powder composition obtained in the above process yielded a milky to pale yellow powder having a constant particle size.

Example 2

Γ-linolenic acid ester powder composition was obtained by following the step (b) of Example 1 using gamma-linolenic acid ester instead of evening primrose oil.

FIG. 2 shows a graph of the shelf life comparison of the powder composition of Example 1 and evening primrose oil obtained by the present invention. Powder composition according to the present invention, which contrasts the powder composition obtained in Example 1 of the present invention and the evening primrose oil for a peroxide value at 35 ° C. (RH 75%) and 5 ° C. for 3 weeks (6 months at room temperature). The composition showed a slight increase in the difference between 35 ° C and 5 ° C.

Evening primrose seed oil showed significant difference at 35 ℃ and 5 ℃ before treatment.

The results are shown in Table 1 below.

TABLE 1

The value is peroxide

Criteria: It is tested according to the maintenance test of evening primrose seed oil food standard collection before treatment.

Claims (8)

Evening primrose seed oil obtained by extracting Evening Primrose seed oil with N-hexane as a main component, 40-60 wt% of one or more complexes of sugar, glucose or lactose as a subcomponent, or 3-10 wt% of casein soda Evening Primrose Seed Oil (containing γ-linolenic acid) obtained by formulating 0.1-3wt% emulsifier and 2-5wt% buffer in mixed composition of soybean phospholipid, sorbitan fatty acid ester and monoglyceride as a mixed composition Powder composition containing 15wt%. The powder composition according to claim 1, wherein the mixed composition obtained by using 10-50 wt% of gamma -linolenic acid ester as a substitute for the evening primrose oil and containing 10-50 wt% of gamma -linolenic acid ester obtained by spray drying. In a method for producing a evening primrose seed oil or a powder composition containing γ-linolenic acid ester by a device consisting of a mixture reaction tank, a homogenizer, a spray dryer, a heating device, an air disperser and a cyclone with a suction duct, A mixture of evening primrose seed oil or γ-linolenic acid ester obtained by extraction with N-hexane, sugars complexed with one or two or more components selected from low sugar, glucose and lactose, casein soda and emulsifier, etc. The emulsification reaction is carried out at 40-70 ° C. and a pressure of 180-320 kg / cm ² , followed by hot air while spraying the resultant mixed reactant with a spray dryer, followed by instant drying and powdering. 4. The method according to claim 3, wherein the evening primrose oil or γ-linolenic acid ester contains 10-50 wt% of the whole mixture. 4. The method according to claim 3, wherein the saccharide comprises 40-60 wt% of the mixture as a whole. The method of claim 3, wherein the emulsifier is used in combination of two or more components of soybean phospholipid, sorbitan fatty acid ester, and monoglyceride, and contains 0.1 to 3 wt%. The method of claim 3, wherein in the spray dryer, the hot air is dried to adjust the hot air inlet temperature to 150-200 ° C. The method according to claim 3, wherein the emulsification reaction is carried out in the range of 30-80 minutes.

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