Method for producing mung bean/pea starch

Abstract

The invention discloses a method for producing a mung bean / pea starch. The method comprises the following procedures: soaking beans, grinding beans, primarily screening, separating, precipitating, taking out the pulp, secondarily screening, hydrocyclone separating and purifying, and vacuum dewatering. On the basis of producing starch by a conventional acidic steeping liquor processing, a hydrocyclone separation device and the vacuum dewatering technique are combined, thereby greatly increasing the efficiency of separating the starch and the efficiency of dewatering, reducing the protein level in the starch, increasing the whiteness of the starch, greatly increasing the purity of the starch, reducing the indexes such as COD in the sewage, and greatly shortening the time of separating the starch and dewatering.

Description

technical field [0001] The invention relates to the field of food processing, in particular to a mung bean / pea starch production process. Background technique [0002] Mung beans are cool in nature, sweet in taste, contain protein, fat, carbohydrates, vitamins A, B, C and other ingredients, and have the effects of relieving heat and thirst, diuresis, detoxification, and lowering blood pressure. The nutritional value of mung bean starch is very high, and its use is also very wide. Therefore, the energy value provided by mung bean starch is lower than that of other grains, and it has an auxiliary therapeutic effect on obese and diabetic patients. Moreover, oligosaccharides are beneficial bacteria in the human intestinal tract - the proliferation factor of bifidobacteria. Regular consumption of mung bean starch can improve intestinal flora, reduce the absorption of harmful substances, and prevent certain cancers. [0003] Peas are sweet in taste and flat in nature, and rich i...

AI Technical Summary

Problems solved by technology

[0004] The current method of producing mung bean / pea starch is the traditional physalis method. The production process requires a large amount of groundwater and produces a large amount of slurry water. There are a large amount of dissolved organic pollutants in the slurry water, followed by inorganic compounds containing N and P. It also contains a certain amount of volatile acid, ash, etc. These organic pulp water will deteriorate after fermentation, and it will consume a large amount of dissolved oxygen when discharged into the water body, which will cause a certain degree of pollution to the water body and air in the surrounding environment.

Due to the high COD, BOD, SOD and other indicators in slurry water, it is difficult to treat this kind of sewage

In addition, the production process is open and a large number of manual operations are used, so the quality of starch cannot be guaranteed

In addition, the waste water produced by the Physalis method is directly discharged, resulting in a large amount of waste of protein

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