JPS5976539A - Base material for pulverizing liquid material - Google Patents

Abstract

PURPOSE:To provide a titled base material which has high bulk, large specific volume and high adsorptive power for liquid material and strength by drying and pulverizing an aq. dispersion of starch or the deriv. thereof, and a high molecular material such as seaweed extract with a drum dryer. CONSTITUTION:An aq. dispersion of starch or the deriv. thereof, and the high molecular material of >=1 kinds among seaweed extract, the mucilaginous material of vegetable seeds, the mucilaginous material of vegetable fruit, the mucilaginous vegetable resin, the mucilaginous material produced by microorganisms, water-soluble or dispersible protein, cellulose deriv. and a water-soluble synthetic polymer is dried by a drum dryer to prepare the powder having suitable grain sizes, whereby a base material for adsorbing and pulverizing liquid material such as fats or oils or org. solvents is obtd. The use of water-soluble or dispersible protein such as gelatin as the above-mentioned high molecular material is more particularly preferred, and 0.1-10wt% said high molecular material is preferably incorporated in the starch or the deriv. thereof.

Description

[Detailed Description of the Invention] There are times when it is convenient to powderize liquid substances such as oils and fats and organic solvents depending on their use.
Attempts are being made to turn liquid substances into powder in various fields including food, medicine, and agricultural chemicals.

Generally, this powdering is carried out by adsorbing a liquid substance to a powdering base material, and modified starch, natural gum, etc. are used as this base material.

However, unlike IS, these conventional substrates have difficulty adsorbing liquid substances. i: There are problems with 7I, which requires manipulation, insufficient adsorption m'' of liquid substances, and poor water swelling properties of the adsorbed product, and is sufficiently satisfactory as a base material for powdering liquid substances. I can't seem to find anything to do with it.

The inventors of the present invention have conducted various tests regarding the pulverization of liquid substances, and have unexpectedly found that a powder obtained by drying an aqueous dispersion of starch or its derivatives and a certain type of polymer substance using a drum dryer has been developed. It was discovered that it is suitable as a base material for powdering liquid substances, and the present invention was completed.

That is, the present invention provides starch or a derivative thereof and 2fη
From the group consisting of algae extract, vegetable seed mucilage, vegetable fruit mucilage, vegetable resin-like mucilage, microorganism-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, which is made of a drum dryer-dried powder of an aqueous dispersion of one or more selected polymeric substances. The base material of the present invention is a powder that is bulky, has a large specific volume, shows high liquid substance adsorption ability, and has high strength. Therefore, there is almost no liquid leakage during the adsorption process, subsequent holding, or transportation. Moreover, the resulting powdered liquid material product also has the advantage of exhibiting excellent water swelling properties.

Thus, examples of starches or derivatives thereof for use in the present invention include natural starches such as potato starch, corn starch, waxy corn starch, sweet potato starch, wheat starch, rice starch, tapioca starch, sago starch, and amylose and amylopectin fractions. , etherified starch, esterified starch, oxidized starch,
Examples include modified starches such as acid-treated starches and grafted starches.

The polymeric substances include sodium alginate, agar,
Seaweed extracts such as carrageenan and farselan, vegetable seed mucilage such as locust bean gum, fur gum, and tamarind, vegetable fruit mucilage such as pectin,
Vegetable resin-like mucilages such as gum arabic, gum tragacanth, gum karaya, and gum galati; microorganism-produced mucilages such as dextran, xanthan gum, pullulan, and curdlan; water-soluble products such as gelatin, sodium caseinate, water-soluble egg white, whole eggs, glue, and collagen; Water-soluble or water-dispersible proteins, cellulose derivatives such as carboxymethyl cellulose, methyl cellulose, hydroxyethyl cellulose, and hydroxypropyl cellulose, and water-soluble synthetic polymers such as polyvinyl alcohol, sodium polyacrylate, and polyethylene oxide are used. These polymeric substances may be used alone or in combination of two or more, and the amount used can be selected as appropriate depending on the performance of the desired powdered product, but is usually 0.00% relative to the starch or its derivative used.
It is preferably about 1 to 10% (weight %, same hereinafter). 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 starch or a derivative thereof and a polymeric substance, and drying and pulverizing the dispersion using a double or single drum dryer according to a conventional method.

The concentration of starch or its derivative 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, the following restrictions can be adopted for the drum dryer operating conditions: normal temperature, pressure, rotational speed, and roll slit 1].
Adjust as appropriate depending on the raw materials used, the performance of the powdered product, and the intended use.

In addition, glycerin fatty acid ester,
1 fatty acid ester, propylene glyco-/L/ fatty acid ester, sorbitan fatty acid ester, fatty acid salt, alkyl sulfate ester, alkylbenzene sulfonate,
Surfactants such as alkylamine salts, quaternary ammonium salts, alkyl betaines, and lecithin may be added in an amount of 0.01 to 10% to starch or its derivatives, which improves the strength and water swelling of the resulting powder. You can further improve your sexuality.

The particle size of the obtained dry powder is adjusted using a sieve in a conventional manner. Generally, 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 powdering in various industrial fields including food, medicine, and agrochemicals. It can be suitably used for powdering liquid substances. Such liquid substances include, for example, natanoura, sesame oil, soybean oil,
peanut oil, cottonseed oil, corn oil, safflower oil, coconut oil,
Palm oil, castor oil, lard, head, fish oil, whale oil, petroleum, vaseline, butter, marcarin, hydrogenated oil, shortening, cod liver oil, perfume oil, spices such as spice oil, methanol, ethanol, impropatol, glycerin, etc. alcohols, solvents such as acetone, ethylene glycol, propylene glycol, xylene, and toluene, and various pesticide emulsions.
It can be mixed with the base material of the present invention using a mixer such as an air mixer and adsorbed to form a powder.

The present invention will now be described in more detail with reference to Examples.

In the examples, the term "part" means the crushed part of the nail.

Example 1 100 parts of waxy corn starch was dispersed in water and adjusted to a Baume degree of 18 degrees, and 0.1 part of xanthan gum and 0.05 parts of polyglycerin laurate were added thereto and mixed uniformly. This dispersion was dried in a double drum dryer (steam internal pressure: 5.5 K's/cl, drum diameter: 12 m, rotation speed: 0.85 r, l) according to a conventional method.
It was gelatinized, dried and powdered, passed through a 24-mesh sieve, and the specific volume was 8.5 mt/f! A base for powdering a liquid substance was obtained.

Example 2 Hydroxypropyl starch (degree of substitution 0.05) 100
1 part was dispersed in water to adjust the Baume degree to 15 degrees, and to this were added an aqueous gelatin solution prepared by dissolving 1 part of gelatin in 4 parts of water, monoglycerin ester o, i part i, and mixed uniformly.

This dispersion was gelatinized and dried into powder using a double drum dryer in the same manner as in Example 1, passed through a 24-mesh sieve, and had a specific volume of 9.2 m/! A base for powdering a hostile substance of 1/1 was obtained.

Example 3 Bracken flour phosphate ester sodium 1-lium (degree of substitution 0.05) 1
00 parts were dispersed in water to adjust the Baume degree to 15 degrees, and an aqueous egg white solution prepared by dissolving 1 part of dried and recycled white in 7 parts of water was added thereto and mixed uniformly. This dispersion was gelatinized and dried into powder using a double drum dryer in the same manner as in Example 1.
The mixture was passed through a 24-mesh sieve to obtain a base for powdering a liquid substance with a specific volume of 9.5 ml/¥.

Example 4 100 parts of waxy corn starch was dispersed in water and adjusted to a Baume degree of 18 degrees, and an aqueous egg white solution prepared by dissolving 1 part of dried egg white in 7 parts of water was added thereto and mixed uniformly. As in Example 1, this dispersion was gelatinized using a double drum dryer, dried and powdered, passed through a 24-mesh sieve, and had a specific volume of 11.2.
A base material for powdering a liquid substance of ml/q was obtained.

Control Example 1 100 parts of waxy corn starch was dispersed in water and adjusted to a Baume degree of 18 degrees. This dispersion was prepared in the same manner as in Example 1.
The mixture was gelatinized using a double drum dryer, dried and powdered, and passed through a 24-mesh sieve to obtain a base material for powdering a liquid substance with a specific volume of 4.2 ml/9.

The performance of the substrates obtained in these Examples and Control Examples was tested as follows.

Test-1 100P of each base material sample was placed in a small blender (rotation speed: 5 Q)
r, p, m,) 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 Ksto+-196419, as shown in line 11 below.

Sample 32 was placed on a glass plate, boiled flaxseed was dropped into the center of the sample in small amounts from a billet, waited for it to absorb oil naturally, and the operation of dropping again was repeated until the entire sample became putty-like. Oil absorption example G was extracted from the amount of boiled flaxseed using the following formula.

G (%)=--X100 II: Boiled flaxseed Ura suspension (i) S: Sample Ichikawa (P) The results are shown in Table 1. 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.

As shown in Table 1, the substrate of the present invention has a much larger specific volume and suction tension than the control example, and has high fracture resistance. In addition, using the I4 powder and starch derivative itself used in these Examples,
・Ij L, the specific volume is 2. both before and after mixing.
2-2.4. ．． ．． ．． 1/! , the oil absorption amount was 60-64%.

Test-2 15g of Natafuura was adsorbed onto the trial sample 202 of each base material, and 200cm rho paper (thickness 3mm) J was weighed with heavy silicon in advance.
: 100c+l? Spread over the area of , per 100 cJ, 2
A load of 9 was applied to 0 and left for 1 day. Weigh the rapeseed that has been adsorbed to the paper, and calculate the survival rate of the rapeseed that has been adsorbed to the substrate under load compression using the following formula.

The results are shown in Table 2.

It is clear from the results shown in Table 2 that the base material of the present invention has excellent strength and oil absorption ability. In addition, when the starch and starch derivative itself used in these Examples were similarly tested, the residual rate was about 28% in both cases.

Special W1 applicant Nichizo Chemical Co., Ltd.

Claims (3)

[Claims] (1) Starch or its derivatives, seaweed extract, vegetable seed mucilage, vegetable fruit mucilage, vegetable resin-like mucilage, microorganism-produced mucilage, water-soluble or water-dispersible protein, cellulose derivative, and water-soluble Made of synthetic polymer! ! A device for powdering a liquid substance, characterized in that it consists of a drum dryer-dried powder of an aqueous dispersion of one or more polymeric substances selected from Y. (2) The base material according to item (1) above, wherein the polymeric substance is a water-soluble or water-dispersible protein. (3) The base material according to item (1) or item (2) above, which contains 0.1 to 10 to 11''96 of the inflicting molecular substance based on starch or its derivative.