Extraction method for dephenolize cotton seed protein

Abstract

The invention discloses an extraction method of the dephenolized cottonseed protein, with the rough piece of the cotton kernel after doffing the cashmere, shelling, adjusting the quality, rolling and drying as the raw material; the polar and non-polar solvents are used as the extraction reagents; concentrated in a container, the raw material is continuously added and the two extraction reagents are continuously added in the divided steps; after the low-temperature extraction and separation, the mixed oil, mixed phenol solution and wet meal can be got; the mixed oil can be made into the rough cotton oil after the wholly negative-pressure evaporation and concentration; the mixed phenol solution can be made into the gossypol concentrated liquid after the vacuum distillation and concentration; the wet meal can be made into the dephenolized cottonseed protein after doffing the cashmere and adjusting the quality. The technological route of the invention is simple; the occupied area of the equipment is small; the one-time comprehensive investment is less; the running and leakage of the negative pressure in the whole system is less; the production cost is low; the product quality is guaranteed; the invention reduces the three-waste emission and is suitable for the industrialized mass production.

Description

technical field [0001] The invention relates to a deep processing method of cottonseed, and directly relates to a method for preparing dephenolized cottonseed protein. Background technique [0002] China is a big cotton-producing country in the world. In 2006, the output of cottonseed alone reached 11 million tons. After separation and processing, 4.4 million tons of cottonseed meal can be obtained. The nutritional value of cottonseed protein is close to that of soybean protein, and it is a good protein. Feed resources can be used to replace fish meal and soybean meal, etc., and the price of cotton meal is much lower than that of soybean meal and fish meal. Therefore, the application of cottonseed protein has a strong competitive advantage, and the market development prospect is broad. However, ordinary cottonseed meal contains a high amount of free gossypol. When used as feed, it will cause harm to the liver and male reproductive system of livestock and poultry, and will...

AI Technical Summary

Problems solved by technology

The authorized notification number of the announcement on January 29, 2003 is CN1100134C's invention patent "a method for processing cottonseed" is such a method. The advantage of this method is that the phenols are completely removed. It can be completed in this kind of equipment, so that the production line will be elongated, the equipment floor area will increase, and the equipment investment will also increase accordingly.

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