JPS6152740B2 - - Google Patents

Description

[Detailed description of the invention]

The present invention relates to a substrate for powdering a liquid substance. It is often convenient to pulverize liquid substances such as oils and fats and organic solvents depending on their use, and attempts have been made to pulverize liquid substances in various fields including food, medicine, and agricultural chemicals. ing. Generally, this powdering is carried out by adsorbing the liquid substance onto a powdering base material, and various substances are employed as this base material. However, it is difficult to find a material that is fully satisfactory as a base material for powdering a liquid substance. While conducting various studies on powdering liquid substances, the present inventors unexpectedly discovered that a powder obtained by adding a certain type of polymer substance to an aqueous solution of starch hydrolyzate and drying it with a drum dryer. It was discovered that it is suitable as a base material for powdering a liquid substance, and the present invention was completed. That is, the present invention provides a starch hydrolyzate, a seaweed extract, a vegetable seed mucilage, a vegetable fruit mucilage,
A drum dryer-dried powder of one or more polymeric substances selected from the group consisting of vegetable resin-like mucilage, microbial-produced mucilage, water-soluble or water-dispersible proteins, cellulose derivatives, and water-soluble synthetic polymers. The present invention provides a base material for powdering a liquid substance. Conventionally, it has been proposed to use a powder obtained by drying an aqueous solution of starch hydrolyzate with a drum dryer as a base material for powdering a liquid substance (Japanese Patent Application Laid-open No. 53-23305), Even if an aqueous solution is dried using a drum dryer, a bulky powder with a large specific volume and a relatively high ability to adsorb liquid substances can be obtained. The disadvantage is that the powder is easily destroyed during transportation, resulting in so-called liquid leakage. In addition, due to technical constraints in drying with a drum dryer, the starch hydrolyzate used is limited to DE (dextrose equivalent) of 18 or less, which results in poor water solubility of products obtained by adsorbing liquid substances; Although it is a good product, it has some drawbacks that make it difficult to obtain. In contrast, according to the present invention, by using a polymeric substance, a powder that is bulky, has a large specific volume, exhibits high liquid substance adsorption ability, and has high strength can be obtained. Even if a starch hydrolyzate with a high DE is used, it can be dried using a drum dryer without any problems, and a product with improved water solubility without defects such as leakage can be obtained. Thus, the starch hydrolyzate used in the present invention is
Natural starches such as potato starch, corn starch, waxy corn starch, sweet potato starch, wheat starch, rice starch, tapioca starch, sago starch, amylose and amylopectin fractions, etherified starch, esterified starch, cross-linked starch, oxidized starch, Various starches such as acid-treated starches, modified starches such as grafted starches, and their derivatives may be hydrolyzed by acid decomposition, alkali decomposition, enzymatic decomposition, or a combination thereof according to conventional methods, and dry powders may be used. From the perspective of
A DE of about 30 or less, usually a DE of about 5 to 30 is preferred, and a DE of about 20 to 30 is particularly preferred from the viewpoint of improving the water solubility of a product to which a liquid substance is adsorbed.
Note that DE here refers to the ratio of reducing sugar in the anhydrous solid content, and the amount of reducing sugar is determined from the University of Tokyo, Department of Agricultural Chemistry, Experimental Agricultural Chemistry, Revised Edition, Volume 2, pp. 638-639 and Appendix Table 3 ( It was measured by the Fehring-Lehmann-Schill method according to the description in 1963, published by Asakura Shoten). Examples of the polymeric substances include sodium alginate, agar, carrageenan, seaweed extracts such as furcelan, locust bean gum, guar gum,
Vegetable seed mucilage such as tamarind, vegetable fruit mucilage such as pectin, vegetable resin-like mucilage such as gum arabic, gum tragacanth, gum karaya, and gum gatuti, microorganism-produced mucilage such as dextran, xanthan gum, pullulan, and curdlan. water-soluble or water-dispersible proteins such as gelatin, sodium caseinate, water-soluble egg white, whole eggs, glue, collagen, cellulose derivatives such as carboxymethyl cellulose, methyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, polyvinyl alcohol, sodium polyacrylate , water-soluble synthetic polymers such as polyethylene oxide are used. These polymeric substances may be used alone or in combination of two or more,
The amount used can be appropriately selected depending on the performance of the desired powdered product, but it is usually preferably about 0.1 to 10% (wt%, same hereinafter) based on the starch or derivative thereof used. In particular, it is preferable to use water-soluble or water-dispersible proteins as the polymeric substance. The base material of the present invention can be produced by preparing an aqueous dispersion containing a starch hydrolyzate and the polymeric substance, and drying and pulverizing the dispersion using a double or single drum dryer according to a conventional method. The concentration of the starch hydrolyzate in the aqueous dispersion can be appropriately selected depending on the actual operating conditions of the drum dryer, and is usually preferably 30 to 60%. In addition, there are no particular restrictions on the operating conditions of the drum dryer, and normal temperatures, pressures, rotational speeds, and roll slit widths can be used, and the performance of the raw materials and powdered products
Adjust as appropriate depending on the purpose. In addition, the aqueous dispersion contains glycerin fatty acid ester, sucrose fatty acid ester, propylene glycol fatty acid ester, sorbitan fatty acid ester,
0.01 to 0.5% of surfactants such as fatty acid salts, alkyl sulfate esters, alkylbenzene sulfonates, alkyl amine salts, quaternary ammonium salts, alkyl betaines, lecithin, and, if desired, starch or its derivative
It may be added in an amount of about 0.1 to 10%, thereby further improving the strength of the powder obtained and the water solubility when a liquid substance is adsorbed. The particle size of the obtained dry powder is adjusted using a sieve in a conventional manner. Usually, a particle size of about 20 to 100 mesh is preferred. The thus obtained base material for powdering a liquid substance of the present invention usually has a specific volume of 4 to 20 ml/g, and is suitable for liquid substances that are required to be powdered in various industrial fields including foods, medicines, and agricultural chemicals. It can be suitably used for powdering substances. Such liquid substances include, for example,
rapeseed oil, sesame oil, soybean oil, peanut oil, cottonseed oil,
Oils and fats such as corn oil, safflower oil, coconut oil, palm oil, castor oil, lard, head, fish oil, whale oil, petroleum, vaseline, butter, margarine, hydrogenated oil, shell toning, cod liver oil, perfume oil, spice oil, methanol, Examples include alcohols such as ethanol, isopropanol, and glycerin, solvents such as acetone, ethylene glycol, propylene glycol, xylene, and toluene, and various agrochemical emulsions.These may be mixed into the base material of the present invention using a mixer such as a kneader, blender, or air mixer. It can be powdered simply by mixing it with and adsorbing it. Next, the present invention will be explained in more detail by giving examples of adjustment and adsorption. In addition, in the preparation examples and examples,
All references to "parts" mean parts by weight. Adjustment example 1 Disperse 100 parts of potato starch in water to obtain Baume degree of 20
α-Amylase (enzyme titer)
13000U/g) Add 0.05~0.5 parts and heat at 85~90℃ for 20~
Hydrolyzed for 120 minutes. Then, adjust the pH to 4.0 with dilute hydrochloric acid.
After deactivating the enzyme as
Adjusted to pH5.5, DE10.5, 17.8 and
A starch hydrolyzate solution of 20.2 was obtained. Preparation Example 2 Disperse 100 parts of potato starch in water to obtain a Baume degree of 20
Prepare a dispersion of α-amylase (enzyme titer).
Add 0.07 parts of β-amylase (enzyme titer 3000 U/g), hydrolyze at 85-90°C for 40 minutes, cool to 60°C, add 0.2-0.3 parts of β-amylase (enzyme titer 3000 U/g), and hydrolyze at 85-90°C for 40 minutes.
Hydrolyzed for ~240 minutes. Then, with dilute hydrochloric acid
Adjust the pH to 4.0 and heat to 95℃ to inactivate the enzyme.
Adjust the pH to 5.5 with calcium carbonate, and
Starch hydrolyzate solutions with DE 29.5 and 33.2 were obtained. Example 1 The starch hydrolyzate solutions obtained in Preparation Examples 1 and 2 were purified and concentrated to obtain a starch hydrolyzate aqueous solution with a concentration of 50%, and 200 parts of the starch hydrolyzate solution was added with pre-dissolved gelatin.
0.3 part was added, mixed and dissolved. This solution was dried using a double drum dryer (steam internal pressure:
5.5Kg/cm ² , drum diameter: 1.2m, rotation speed: 0.85rpm
) to obtain substrates for powdering liquid substances having specific volumes as shown in Table 1.

[Table] Example 2 Starch hydrolyzate of DE20.2 obtained in Preparation Example 1
% aqueous solution, 0.5 part of guar gum was previously gelatinized with 25 parts of water and mixed uniformly. This solution was dried and powdered using a drum dryer in the same manner as in Example 1, passed through a 24-mesh sieve, and the specific volume was 13.5 ml/
A base material for powdering a liquid substance (sample number 6) was obtained. Example 3 50% of starch hydrolyzate with DE29.5 obtained in Preparation Example 2
1 part of whole egg was added to 200 parts of % aqueous solution and mixed uniformly. This solution was dried and powdered using a drum dryer in the same manner as in Example 1, and passed through a 24-mesh sieve to obtain a substrate for powdering a liquid substance (sample number 7) with a specific volume of 11.4 ml/g. Control example DE10.5, 17.8, obtained in Preparation Examples 1 and 2
50% aqueous solutions of the resin hydrolysates of 20.2 and 29.5 were dried and powdered using a drum dryer in the same manner as in Example 1 to obtain substrates for powdering liquid substances shown in Table 2.

[Table] In addition, those with DE33.2 could not be dried in the absence of polymeric substances. The performance of the substrates obtained in these Examples and Control Examples was tested as follows. Test-1 100g of each base material sample was placed in a small blender (rotation speed
60 rpm) for 10 minutes, the specific volume and oil absorption before and after mixing were measured, and the fracture resistance strength was tested. The oil absorption was measured in accordance with the method of JIS K5101-196419 as follows. 3 g of the sample was placed on a glass plate, and boiled linseed oil was dripped in small amounts at the center of the sample from a biuret, held so that it would naturally absorb the oil, and the process of dropping again was repeated until the entire sample became batter-like. Oil absorption amount G was calculated from the amount of boiled linseed oil used using the following formula. G (%)=H/S×100 H: Boiled linseed oil amount (ml) S: Sample weight (g) The results are shown in Table 3. In addition, in order to compare the reduction in specific volume and oil absorption due to mixing and destruction of each sample, the residual ratio calculated according to the following formula is also shown. Survival rate (%) = Value after mixing / Value before mixing × 100

[Table] As shown in Table 3, the base materials of the present invention (sample numbers 1 to 7) have extremely high fracture resistance compared to the control examples (sample numbers 8 to 11) (sample numbers The reason why 5, 10, and 11 show a high survival rate is thought to be due to their candy-like structure), and especially at high DE, the oil absorption is more than 10 times that of the control example. have a quantity. Test-2 (1) Put 100ml of water in a beaker and add each sample 2 to it.
g was added, and the time taken for it to naturally absorb water and completely settle to the bottom of the beaker was measured (the faster the sedimentation, the better the water solubility and water dispersibility). (2) 2 g of rapeseed oil was adsorbed on 2 g of each sample, and the samples were poured into water in the same manner as in (1), allowed to absorb water naturally, and the time taken until the oil was completely released was measured (the faster the oil release (Good water solubility and water dispersibility). The results are shown in Table 4.

【table】

[Table] As shown in Table 4, the base material of the present invention has better water solubility and water dispersibility than the base materials of control examples (sample numbers 8 and 9). In addition, sample number 10 and
Sample No. 11 had a candy-like appearance and could not be subjected to Test-2 (1). Also, in Test-2 (2), almost no rapeseed oil was adsorbed.

Claims (1)

[Scope of Claims] 1 Starch hydrolyzate, seaweed extract, vegetable seed mucilage, vegetable fruit mucilage, vegetable resin-like mucilage, microorganism-produced mucilage, water-soluble or water-dispersible protein, cellulose 1. A base material for powdering a liquid substance, comprising a drum dryer-dried powder of an aqueous dispersion of one or more polymeric substances selected from the group consisting of derivatives and water-soluble synthetic polymers. 2. The base material according to item 1 above, wherein the starch hydrolyzate has a DE (text loin equivalent) of about 30 or less. 3. The base material according to item 2 above, wherein the starch hydrolyzate has a DE of about 20 to 30. 4. The base material according to any one of Items 1 to 3 above, wherein the polymeric substance is a water-soluble or water-dispersible protein. 5. The base material according to any one of Items 1 to 5 above, which contains 0.1 to 10% by weight of a polymeric substance based on the starch hydrolyzate.