CN1212133A

CN1212133A - Manufacturing process of fine powdered soybean with nutrition

Info

Publication number: CN1212133A
Application number: CN97116565A
Authority: CN
Inventors: 李珍雨; 沈锦山
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-09-22
Filing date: 1997-09-22
Publication date: 1999-03-31

Abstract

This invention is about how to grind raw beans into very small size without destructing nutriment, and manufacture fine powdered soybean with nutrition, which involves drying beans in 65-85 deg.C for 15-35 sec and cool about 30 deg.C, firstly crush roughly cooled raw beans by impact-way grinder, and dry first crushed particles to contain 3-5% watery, second crush dried raw bean particles by same way with first and narrow the space between hammer end grinding panel much more, distribute second crushed powder, if uncrushed or crushed roughly, then crush again to get expected object. Like this way, fine powdered soybean with high digestive absorption rate and storage can be manufactured without fishy smell and destruction of nutrition.

Description

The method of micronization that keeps soybean nutritional

The present invention relates to how soybean material be worn into the 150-900 mesh size and don't destroyed its nutrition, and make the soybean micro mist that keeps nutrition.

Usually, because soybean chance thermal change is soft, contain tertia, fat and protein again, these factors all can cause in the process of grinding coheres phenomenon, thereby is difficult to make micro mist.Though also can make micro mist with existing grinding method, exist the problem that high frictional heat is destroyed the soybean nutritional composition.

Simultaneously, soybean has high protein and low-calorie, helps to prevent gerontal case such as diabetes and hypertension, and suitable to powder-form food prepared therefrom or baby food.Yet because soybean material has distinctive fishlike smell and hard-decomposed matter, produce difficulty, fat wherein after making powdery soon oxidation degenerate, so this is another difficult problem that soybean is made commodity food.

The invention solves existing problem, make bean product to produce in a large number with commercial scale, not only can grind carefullyyer, still can keep the various nutritions that activated, can also prevent the oxidation of fat, and improved storage property because no longer include fishlike smell, had the high performance of digesting and assimilating again.In order to reach effect of the present invention, the present invention does not adopt existing method for grinding, but with bump crushing method,, grinds sending soybean in the grinding machine (1) to by the bump shown in Fig. 1 with a plurality of Xun Huan Hammer (2), turns round and round shearing and crushing.Simultaneously, cold air answers the temperature that makes in the spirt grinding machine (1) in the grinding machine (1) to remain on 55-85 ℃.In addition, the present invention adopts segmentation to grind method, simultaneously, grinds soybean with low temperature bump, is promptly grinding method with the segmentation of correct grinding for the second time after the corase grind for the first time, therefore can crush thinner easilier and don't exist and destroy the soybean nutritional composition and problem such as cohere.

The present invention peels off duricrust earlier again before the crushing soybean material, to be easy to crushing, digestibility is improved.According to above-mentioned test, the optimum drying degree that soybean is peeled off is that soybean is dried to the moisture content that contains 9-11%.Again the soybean material of having peeled off is heated a little while before crushing,, remove the lipoxygenase of oxygenate fat simultaneously with the trypsase inhibin that removal causes fishlike smell and is difficult to decompose.

Most important thing is a heated condition before grinding.Be that overheated meeting causes some side effect, for example the destruction of nutrition can not be removed fishlike smell at least fully.According to above-mentioned test, preferably the soybean after unpacking is heated 15-35 second with 65-85 ℃.

Fig. 1 is the sketch map of the used grinding machine of the present invention, the main element shown in the figure: (1) grinding machine (2) hammer (3) nog plate (4) screen cloth (5) collecting box (6) charging aperture

Details as Follows for each operation of the present invention: 1. magnetic separation operation is sent the soybean of fixed qty to magnetic separator sieve impurity elimination thing.2. after drying process arrived 65-85 ℃ to the soybean that does not contain foreign material with Steam Heating, being dried to water content was 9-11%.3. the operation of peeling off is peeled off correctly dry soybean with decorticator, at this moment, big beans is divided into two.4. deodorizing operation heats 15-35 second to the soybean that is divided into two that has shelled shell in 65-85 ℃ steam, remove fishlike smell and improve digestion and storage property.5. the soybean of refrigerating work procedure after deodorizing is cooled to 30 ℃ with 10 ℃ cold wind, grinds being convenient to.6. the operation of pregrounding is for the first time sent chilled soybean to bump method grinding machine (1).Consisting of of this grinding machine (1): a plurality of ring Hammer (2), last buckplate (3), following sieves (4) of following.In grinding machine (1) by the bump that grinding and hammering into shape (2) of plate (3) with turn round and round and the cut mode corase grind to the size of 80 sieve meshes, then, the particle of crushing falls to collecting box (5) by sieving (4).At this moment, should to keep spraying the inside enter grinding machine (1) be 55-85 ℃ to keep temperature to cold air.Fluid bed dryer pregrounding for the first time the soybean particle be 3-5% with 55-90 ℃ temperature drying to water content with existing fluid bed dryer.For the second time the broken operation of pressure-sizing the soybean material drying particle send to for the second time in the refiner (not shown), this refiner is identical with primary grinding machine (1), various conditions for example structure and the internal temperature of grinding machine all with for the first time identical, except the gap between peen and the plate than primary be little so that can finish grind the 150-900 sieve mesh.9. distribute operation for the second time ground soybean particle also fall by screen cloth, distribute with the 150-900 sieve mesh then and pack quantitatively, so produce with commercial size.Some bulky grain in assigning process should be sent to again for the second time and grind in the grinding machine, until meeting required granularity.

With above-mentioned method, the soybean material powder behind the correct grinding is first-class healthy food, is applicable to various diseases of old people, food, or pablum because it does not had fishlike smell good digestibility arranged again.Owing to its storage that is suitable for, so it can be produced in large quantities with commercial size.When using this micro mist to do to produce the material of tofutti, directly soya-bean milk is not solidified and make tofutti even do not do screening, do not have the destroyed of harsh feeling and nutrition yet.Therefore, the present invention can not only prevent the waste of a large amount of water for industrial uses, and can directly be packaged in product in the little container with automatic machine without screening process.When the use micro mist that the present invention produced is in various food manufacturings, thus because the very easily water-soluble manufacturing process of having shortened of this micro mist.In addition, can improve the nutrition of food and the quality of product again, because the taste that it has the nutrition of high digestibility to become reconciled.

Claims

1. the manufacture method of a soybean micro mist, it is characterized by, it is 9-11% that soybean material is dried to water content, under 65-85 ℃ temperature, carry out the hot soarfing shell second with 15-35, be cooled to 30 ℃ again, use bump method grinding machine that chilled soybean material is carried out the crushing first time at low temperatures, is the particle drying of for the first time having crushed 3-5% to water content, with identical method for the first time but the gap is reduced dry soybean material particle is carried out crushing second time, the powder of having crushed is for the second time distributed and crush once more and still dislike big particle to become required granularity until them.