JP4147620B2 - Method for producing coated granular composition and coated granular composition - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
In particular, the present invention provides a coated granular composition capable of effectively and efficiently coating a core material containing fine powder having a diameter of 50 μm or less, which can be a raw material for foods, feeds, pharmaceuticals, quasi drugs, cosmetics, etc. The present invention relates to a method for producing a product and a coated granular composition obtained by the production method.
[0002]
[Prior art]
Conventionally, by covering granular materials, which are various raw materials in each field of food, feed, pharmaceuticals, quasi drugs, cosmetics, etc., with fats and oils, the granular materials come into contact with the outside air and moisture, and the granular materials are in contact with each other. Preventing the deterioration of the granular material due to such as. As a coating method with such fats and oils, a method of coating granular materials by spraying liquid fats and oils, stirring a core material and a hardened oil powder having a specific melting point or more together at high speed, and bringing them into contact with each other. A method of fixing oils and fats to the entire peripheral surface of the core material is known. In particular, the contact / collision method is an effective means because the core material can be uniformly coated.
However, when a core material having a diameter of 50 μm or less is included, it is difficult to coat the core material in a state where sufficient covering performance can be maintained, and water or the like enters from the gap between the coated oils and fats to dissolve the core material. There is a high risk of problems in elution prevention.
[0003]
On the other hand, in JP-A-7-87950, a lipid in a molten state is sprayed or dropped on a core material to form a primary coating film, and the resulting primary coated particles are in the form of lipid powder having a melting point of 40 ° C. or higher. A method for producing double-coated particles in which a body is brought into contact with and collided to form a secondary coating film has been proposed. However, this method is only intended for a core material having a diameter of several hundred μm, and is difficult to apply to a core material having a diameter of 50 μm or less.
[0004]
[Problems to be solved by the invention]
Accordingly, an object of the present invention is to provide a coated granular composition that can easily provide coating performance excellent in elution prevention and the like, and has excellent production efficiency even when it has a fine powder of 50 μm or less as a core material. It is in providing the manufacturing method of a thing.
Another object of the present invention is to provide a coated granular composition containing a fine powder of 50 μm or less as a core material and each coated granular product having a coating performance excellent in elution prevention and the like.
[0005]
[Means for Solving the Problems]
That is, according to the present invention, a core material containing fine powder having a diameter of 50 μm or less is coated with a substance having poor water solubility at room temperature consisting of zein, gluten, pullulan, gelatin, xanthan gum, agar, gellantan gum, or carrageenan. There is provided a method for producing a coated granular composition comprising the step (A) of granulating and the step (B) of coating the obtained granulated product with fats and oils.
According to the present invention, the coated granule composition obtained by the above production method, wherein the entire peripheral surface of the core material containing fine powder having a diameter of 50 μm or less has zein, gluten, pullulan, gelatin, xanthan gum, agar, gel There is provided a coated granular composition comprising a substance layer composed of lanthanum gum or carrageenan and having poor water solubility at room temperature and an oil layer on the outside thereof.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
The present invention will be described in detail below.
In the production method of the present invention, first, the step (A) of coating and granulating a core material containing a fine powder having a diameter of 50 μm or less with a substance exhibiting poor water solubility at a specific normal temperature is performed. The core material used in the step (A) usually contains 5 to 100% by weight of fine powder having a diameter of 50 μm or less, and the fine powder having a diameter of 50 μm or less deteriorates the covering performance, so that the step (A) is performed. As a result, most of the particles are larger than 50 μm in diameter.
[0007]
The material constituting the core is usually a component that deteriorates due to contact with the outside air or moisture, or contact between the cores, or is a strong component such as pungent or bitter due to elution. The material is not particularly limited as long as it includes materials having a diameter of 50 μm or less that can be prevented or suppressed, and examples thereof include various foods, feeds, pharmaceuticals, quasi drugs, cosmetics, and the like. Specific examples include catechin, yeast extract, ginkgo biloba, gymnema, propolis, capsaicin, vitamin B group extracts and powders. Extracts that are liquid at room temperature can be finely powdered by freeze drying, spray drying, or the like.
[0008]
In order to granulate the core material used in the step (A), a substance that is sparingly soluble in water at room temperature is composed of zein, gluten, pullulan, gelatin, xanthan gum, agar, gellantan gum, or carrageenan.
[0009]
In the step (A), in order to granulate the plurality of core materials with a substance exhibiting poor water solubility at room temperature, for example, a fluidized bed granulator or a fluidized bed granulator usually used in the food field is stirred. Stirring type fluidized bed granulator with blades, rolling type fluidized bed granulator equipped with rolling plates, fluidized type granulator such as Wurster type fluidized bed coating machine, agitating powder and binder in it Can be performed using an agitation type granulator which is made into a granulated form, an extrusion granulator which extrudes powder at a high pressure together with a binder, and the like.
Granulation conditions are not particularly limited. For example, when using a fluidized bed granulator, it can be performed under known conditions. Preferably, the particle diameter after coating the core material with a substance exhibiting poor water solubility at room temperature is more than 50 μm, particularly preferably under the condition that most of the granulated product has a particle diameter of 75 to 500 μm, and It is desirable to appropriately determine the blending ratio of the core material and the substance exhibiting poor water solubility at room temperature so as to have the above particle diameter.
In granulation, a binder can be added as necessary. Examples of the binder include saccharides such as dextrin, lactose, corn starch, and powdered sugar; proteins such as skim milk powder and soy protein; cellulose powder and the like, and the amount used can be appropriately determined based on a known method.
[0010]
In the method for producing a coated granular composition of the present invention, a coated granular composition excellent in target coating performance is obtained by performing the step (B) of coating the granulated product obtained in the step (A) with fats and oils. can get.
[0011]
Examples of the fats and oils used in the step (B) include animal fats and oils such as beef tallow, pork tallow and fish oil; vegetable oils and fats such as rapeseed oil, soybean oil, palm oil, coconut oil, sesame oil, sesame oil and linseed oil. These oils and fats may be refined deodorized oils that have undergone oil and fat processing such as curing, fractionation, and transesterification. Moreover, the form of fats and oils can be selected with the coating method mentioned later, and any of liquid form, semi-solid form, and solid form may be sufficient.
[0012]
In the step (B), the method of coating the granulated product obtained in the step (A) with fats and oils is not particularly limited, but the granulated product obtained in the step (A) has a melting point of 40 ° C. or higher. A method in which oil powder is brought into contact with and collided to fix oil and fat on the entire peripheral surface of the granulated product (1); the granulated product obtained in the step (A) is sprayed with liquid oil in a fluidized bed. Examples include the method (2) for coating the entire peripheral surface of the granulated product with oils and fats, and the method (1) is preferable from the viewpoint of obtaining a uniform coating layer.
[0013]
Examples of the hardened oil powder having a melting point of 40 ° C. or higher used in the method (1) include animal hardened oil powder having a melting point of 40 ° C. or higher, such as beef tallow hardened oil powder, pork tallow hardened oil powder, fish oil hardened oil powder, etc .; , Vegetable hardened oil powder having a melting point of 40 ° C. or higher, such as hardened soybean oil powder, hardened palm oil powder, hardened palm oil powder, hardened sesame powder, hardened sesame oil powder, hardened linseed oil powder, and the like. The particle diameter of these hardened oil powders is preferably about 0.1 to 50 μm, particularly 1 to 10 μm.
In Method (1), the mixing ratio of the granulated product and the hardened oil powder when the hardened oil powder having a melting point of 40 ° C. or higher is brought into contact with and collided with the granulated product obtained in the step (A) Can be appropriately determined in consideration of the particle size ratio between the particle size of the product and the particle size of the hardened oil powder. For example, the weight ratio of granulated product: hardened oil powder is 1: 0.01 to 5, particularly It is preferable to select from a range of 1: 0.05-1.
In the method {circle around (1)}, the contact / collision between the granulated product and the hardened oil powder can be performed by using a known powder contacting device such as a high efficiency powder mixing device. The contact / impact condition is such that the hardened oil powder having a melting point of 40 ° C. or higher melts at a temperature lower than 40 ° C., and the surface of the hardened oil powder is melted by contact / impact and is welded and fixed to the outer surface of the granulated product. If it does not specifically limit.
[0014]
Examples of the fats and oils used in the method (2) include the aforementioned animal fats and oils and vegetable fats and oils. When the fats and oils are semi-solid or solid, they can be used in a liquid state.
In method {circle around (2)}, in order to liquidally spray the fat and oil in the fluidized bed on the granulated product obtained in the step (A), for example, the granulated product is stirred with a stirrer or the like. It can carry out by the well-known method etc. which spray using a nozzle, an atomizer, etc.
[0015]
The coated granular composition of the present invention is a coated granular product obtained by the above-described production method, and the coated granular material has a substance layer exhibiting poor water solubility on the entire peripheral surface of a fine core material having a diameter of 50 μm or less, The thing provided with the fats and oils layer on the outside is included.
The particle diameter of the obtained coated granular material is preferably 75 to 500 μm in order to have excellent coating performance.
[0016]
【The invention's effect】
In the method for producing a coated granular composition according to the present invention, after granulation with a substance exhibiting poor water solubility at room temperature, coating with fats and oils is performed, so that production efficiency is achieved for a core material containing a plurality of fine powders having a diameter of 50 μm or less. It is possible to easily provide a coating performance that is excellent in elution prevention and the like, and can be used to prevent deterioration of all raw materials such as food, feed, pharmaceuticals, quasi drugs, and cosmetics. In addition, the obtained coated granular composition exhibits a coating performance excellent in elution prevention property and the like, although the core material is a fine powder of 50 μm or less.
[0017]
【Example】
Hereinafter, although an Example and a comparative example demonstrate in detail, this invention is not limited to these.
[0018]
Example 1
250 g of catechin powder (trade name “Polyphenone 100”, Taiyo Kagaku Co., Ltd.) having a strong bitterness and containing 55% of particles of 50 μm or less together with 225 g of dextrin, fluidized bed granulator (trade name “Flow Coater Mini”, Freund And granulated using 250 g of a 10% gelatin solution (trade name “Gelatin R”, manufactured by Nitta Gelatin Co., Ltd.). As the granulation conditions, the intake air amount and the liquid supply amount were adjusted so that the intake air temperature was 60 ° C. and the exhaust temperature was 35 ° C. After granulation for 30 minutes, particles having a diameter of 50 μm or less were reduced to 2.5%.
Next, using 300 g of the obtained granulated product, 100 g of rapeseed extremely hardened oil fine powder having an average particle diameter of 3 μm was added, and the mixture was added to a stirring granulator (trade name “OMD-3”, manufactured by Nara Machinery Co., Ltd.). The mixture was stirred for 10 minutes under the conditions of an in-machine temperature of 20 ° C. and nitrogen gas filling under conditions of a main shaft rotation speed of 500 rpm and a sub shaft rotation speed of 500 rpm to obtain a large number of oil-coated catechin granules. The average particle diameter of the obtained granular material was 200 μm. Many of these granular materials were masked with a very good bitter taste, and a sufficient oil-fat coating effect was obtained.
[0019]
Comparative Example 1
250 g of catechin powder and 250 g of dextrin as in Example 1 were well mixed. The content ratio of particles of 50 μm or less in the obtained powder was 45%. Next, 300 g of the powder mixed powder was mixed with 100 g of rapeseed extremely hardened oil fine powder similar to that in Example 1 with a stirring granulator (trade name “OMD-3”, manufactured by Nara Machinery Co., Ltd.). An oil-coated catechin granular material was prepared by stirring for 10 minutes under conditions of a temperature of 20 ° C. and nitrogen gas filling under conditions of a main shaft rotation speed of 500 rpm and a sub shaft rotation speed of 500 rpm. The obtained oil- or fat-coated catechin granular material does not have a uniform oil-and-oil film, has a strong bitterness, and is not suitable for food and drink. In this method, a sufficient oil-and-fat coating effect cannot be obtained.
[0020]
Example 2
350 g of a strong smelly yeast extract powder (containing 50% of particles with a diameter of 50 μm or less) and 137.5 g of dextrin are charged into a fluidized bed granulator (trade name “Flow Coater Mini”, manufactured by Freund Sangyo Co., Ltd.) Granulation was performed using 250 g of a 5% pullulan solution (trade name “Pullan PF-10”, manufactured by Hayashibara Biochemical Laboratories). As the granulation conditions, the intake / exhaust amount and the liquid supply amount were adjusted so that the intake temperature was 60 ° C. and the exhaust temperature was 35 ° C. After granulation for 45 minutes, particles having a diameter of 50 μm or less were reduced to 1.2%.
Next, 350 g of the obtained granulated product is again charged into the fluidized bed granulator, 50 g of rapeseed oil (melting point 36 ° C., manufactured by Nippon Oil & Fats Co., Ltd.) is melted and sprayed, and a large number of oil-coated yeast extract granules Got. At this time, the operating conditions of the granulator were adjusted such that the intake air temperature was room temperature and the intake / exhaust amount and the liquid supply state were in accordance with the flow state. The average particle diameter of the obtained granular material was 185 μm. Many of these granular materials were masked with odor very well, and a sufficient oil and fat coating effect was obtained.
[0021]
Comparative Example 2
350 g of the same yeast extract powder and 150 g of dextrin as in Example 2 were mixed with powder, 350 g of which was charged into a fluidized bed granulator, and 50 g of rapeseed oil (melting point 36 ° C., manufactured by NOF Corporation) was melted and sprayed. As a result, a large number of oil-coated yeast extract granules were obtained. The obtained granular material was not uniform in oil and fat coating, had a strong odor, and was not suitable for eating and drinking. Therefore, this method did not provide a sufficient oil / fat coating effect.

Claims (4)

A step (A) of coating and granulating a core material containing fine powder having a diameter of 50 μm or less with a substance having poor water solubility at room temperature consisting of zein, gluten, pullulan, gelatin, xanthan gum, agar, gellantan gum or carrageenan ; And a step (B) of coating the obtained granulated product with fats and oils.   In the step (B), a hardened oil powder having a melting point of 40 ° C. or higher is brought into contact with and collided with the granulated product obtained in the step (A) to fix oil and fat on the entire peripheral surface of the granulated product. The method for producing a coated granular composition according to claim 1.   In the step (B), the granulated product obtained in the step (A) is sprayed with oil and fat in a fluidized bed, and the entire peripheral surface of the granulated product is coated with the oil and fat. The manufacturing method of the coated granular composition as described in any one of. The coated granular composition obtained by the production method according to any one of claims 1 to 3, wherein the entire peripheral surface of the core material containing fine powder having a diameter of 50 µm or less is zein, gluten, pullulan, gelatin, xanthan gum, A coated granular composition comprising a substance layer composed of agar, gellantan gum or carrageenan and having a poor water solubility at room temperature, and an oil layer on the outside thereof.