Method for preparing wheat separation protein

Abstract

The invention relates to a method for preparing a wheat separation protein, in particular to purification and modification of a wheat separation protein with high purity. The method comprises the following steps: gluten powder which is a byproduct of starch prepared by wheat is subjected to acid-alkali extraction, separation purification, high-temperature bactericidal treatment and spray drying to obtain the powdery vegetable protein with the purity of more than 90 percent used for food additives. The wheat separation protein with high purity is light yellow, and has fine and uniform particles, and unique wheat flavor rather than natural fishy smell of the soybean separation protein; moreover, the dry based crude protein content of the wheat separation protein is as high as more than 90 percent.

Description

Technical field [0001] The invention relates to a method for producing food additives, in particular to a method for purifying and modifying high-purity wheat protein isolate. Background technique [0002] With the improvement of people's living standards, the consumption of low-protein and high-fat foods is gradually decreasing, and the demand for high-protein and low-fat plant foods is increasing. The protein currently sold on the market is mainly extracted from milk and soybeans. However, the current production of milk and soybeans in China is far from meeting consumer demand, and a large part of it needs to be imported from abroad, and the pricing power of these two products is firmly controlled in foreign countries, which requires a large amount of foreign exchange in my country every year. At the same time, technically speaking, the lactose contained in milk is a limitation for some people who are lactose intolerant to allergic reactions in China, and the inherent fishy sm...

AI Technical Summary

Problems solved by technology

Wheat gluten contains a certain amount of protein, but due to imperfect processing technology, a lot of gluten is simply processed into feed-grade pet food, which reduces the added value

There are many kinds of so-called wheat protein on the market, but most of them are gluten with low protein content, not really deep-processed wheat protein isolate

In order to increase the protein content, some unscrupulous manufacturers even add urea, melamine and other substances to gluten, which has caused extremely bad effects in the world.

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