Method for producing protein concentrate by high temperature peanut meal

Abstract

The invention discloses a method for producing protein concentrate by high temperature peanut meal; wherein, high temperature peanut meal obtained by production of peanut oil by hot pressing method istaken as the raw material; the peanut meal is sieved by a classifying screen, fine power is abandoned, enzymolysis is carried out the peanut meal on the screen by alpha-1, 4-glucose hydrolytic ferment enzymolysis; then the enzymolyzed peanut meal is put into a leacher to be leached by ethanol; in the peanut meal, alcohol soluble elements and water-soluble syrup are dissolved in liquid to form diluted syrup which flows out of the leacher; the leached wet meal passes through an extruding machine and enters a vacuum dealcoholization device where the ethanol in the meal is removed in the state ofslightly negative pressure, moisture thereof is adjusted to 4-8%, thus obtaining the protein concentrate; the invention has the characteristics of no damage to nutritional value of peanut protein, nopollution to the environment, simple method, high yield of protein and low cost.

Description

technical field [0001] The invention belongs to the field of deep processing of agricultural and sideline products, and in particular relates to a method for producing concentrated protein by treating high-temperature peanut meal with hydroalcohol. Background technique [0002] Peanut is an important oil crop and economic crop. It has the dual properties of being rich in oil and protein. It is a good source of edible oil, protein, polysaccharides, flavonoids and other active substances; most countries only pay attention to peanut kernels due to the lack of peanut resources and eating habits. There is a lack of research on the development of peanut oil and peanut protein products in the research and development of food and peanut butter products. my country produces 15 million tons of peanuts annually, of which 65% is used to produce edible peanut oil. The hot pressing process is the mainstream technology for producing peanut oil. The peanut oil produced by this technology is...

AI Technical Summary

Problems solved by technology

According to the survey, there are currently only two or three enterprises in my country that use low-temperature pressed meal to produce peanut meal powder. The production scale is about 10,000 tons per year, and the protein content of their products is only about 50%, which is not a real peanut protein product.

In terms of the use of high-temperature peanut meal to produce peanut protein products, there is almost a blank in China. There are neither industrial development demonstration enterprises, nor production specifications and product national quality standards.