Preparation method of rice bran dietary fiber with high soluble protein content

Abstract

The invention discloses a preparation method of rice bran dietary fiber with the high soluble protein content. The method comprises the steps that low-temperature degreased rice bran meal is taken as a raw material and then treated through a hydrostatic pressure technology after being cleaned for impurity removing, enzymolysis is conducted through a lucid ganoderma enzyme, vacuum low-temperature microwave drying and low-temperature vibration bed ultramicro pulverizing are conducted, and the target product-rice bran dietary fiber with the high soluble protein content is obtained. According to the preparation method, cleaning is conducted through a citric acid solution, the hydrostatic pressure technology is adopted after impurities are removed and acidification treatment is conducted, and therefore mutual binding of the rice bran dietary fiber and protein is reduced; enzymolysis is conducted through the compound lucid ganoderma enzyme, and therefore bound protein in the active dietary fiber is released; meanwhile, a low-temperature vibration bed pulverizing technology is adopted, and therefore the protein dissolution rate is increased. The preparation method has the advantages of being easy and convenient to operate, friendly to environment, low in energy consumption and cost, high in protein utilization rate, suitable for industrialized production and the like and is suitable for preparing the rice bran dietary fiber with the high soluble protein content from rice bran.

Description

technical field [0001] The invention provides a method for preparing rice bran dietary fiber with high soluble protein, which belongs to the technical field of food processing. Background technique [0002] Rice bran is an important by-product of rice processing, which accounts for about 5%-6.5% of the weight of rice, but contains 64% of nutrients and more than 90% of essential elements for human body. Defatted rice bran contains about 12-20% of hypoallergenic proteins. About 50% carbohydrates. my country's annual output exceeds 10 million tons, and the output of rice bran ranks first in the world. It is a renewable resource with a large amount and a wide range. It is currently mainly used for animal feed, and the added value of the product is extremely low. The United Nations Industrial Development Organization regards rice bran as an underutilized raw material. The further development and utilization of rice bran resources can provide abundant raw materials for the food i...

AI Technical Summary

Problems solved by technology

In order to overcome the problems in the prior art that the rice bran dietary fiber tastes too bad, the cost is too high, the waste of protein resources is serious, and the physiological activity cannot be well exerted after the dietary fiber in the grain is ingested, the method is low in cost, good in palatability, and responsive. The conditions are relatively mild, and the pollution to the environment is relatively small, and the content of soluble protein is high