Make cotton axilla waste huge benefits

Xinjiang is a large cotton producing area in China. In the past, wastes from cottonseed oil, cottonseed meal, can only be disposed of in an abandoned manner. However, the new technology developed by Xinjiang Kosen Biological Engineering Co., Ltd. after six years of development will make this possible. Scrap achieves great economic value. The core of this new technology lies in the purification of high-quality food-grade protein powder from cotton aphids and the industrial production of gossypol. With this technology as the core, the “industry protein isolate and gossypol industrialized production” project uses cottonseed as raw material. After processing, the cottonseed husk can be used as roughage to feed cattle, sheep and other livestock. The cottonseed oil can reach the advanced cooking oil standard. Phenol has a high added value as an important chemical product. Cotton aphid can also be used as a feed protein after extracting food grade protein to separate it. It has achieved comprehensive utilization and is known as a revolution in cotton aphid use.
According to the Xinjiang New International Information Retrieval and Consultation Center’s September 23, 2002 investigation report, the use of cotton aphid for the industrialized production of food grade cotton protein and the industrial production of gossypol have not been realized at home and abroad. China is a world leader in cotton production. In 2002, the cotton output was 5 million tons, the cottonseed production was about 6.8 million tons, the cotton pupa was about 2.9 million tons, the cotton pupa had a protein content of about 50%, and 2.9 million tons of cotton pupa were pure protein powder 1.45 million. Ton.
Cottonseed protein is a legume protein in quality and its nutritional value is far higher than glutenin. With the exception of slightly lower methionine, the remaining essential amino acid content of the human body meets the recommendations of the FAO. However, because of the structural speciality of cotton protein for a long time, the use of cottonseed meal is not as easy as using soybean meal to obtain high-quality food-grade protein powder through industrial production, thus making cotton aphid, a valuable protein resource, lack of excellent extraction. The process is wasted, and the main purpose of cotton aphid is to feed livestock and make paper and paper.
Protein is the first nutrient required by the human body, and the per capita protein consumption of our residents is low. In the “China Nutrition Improvement Action Plan” and “Outline of China's Food Structure Reform and Development in the 1990s”, the State Council stated: “In our country, the average daily protein intake per person is not less than 75 grams,” and the developed countries The level reached 112.9 g/person/day.
The other main ingredient in cottonseeds, gossypol, is harmful to the human body, but it has extremely high use value in a wide range of fields. As an antioxidant, it can be widely used in the rubber industry, plastics process, aerospace fuel and other industries; used in the food industry as a food inhibitor, to improve the stability of vitamin A; as a stabilizer, gossypol for road building, can increase the strength And cold resistance; used for mechanical finishing can improve tool life, for oil drilling can improve the thermal stability of the drill, for iron can effectively prevent the formation of rust; gossypol as fireproof material can be widely used in wood and industrial agriculture In many fields of production and daily life; In agriculture, as pesticidal and bactericidal agents for the elimination of rodent pests, prevention of bollworm and wilt disease have a good effect; in the medical and medical aspects, as a fungicide especially against Staphylococcus aureus , Bacillus, Helicobacter pylori, etc. have a good effect, for the treatment of infectious wounds have the effect of stimulating tissue regeneration, promoting wound healing, as an anti-malaria drug can kill herpes virus, as an anti-parasitic drug is very effective against trypanosomiasis , As an anti-cancer drug, it has a good effect on pancreatic cancer, melanoma cancer, colon cancer, uterine cancer, prostate cancer, etc.; Sedatives have 70% to 80% efficacy for senile bronchitis; as a male contraceptive has received widespread attention and so on. However, due to the delay in the realization of industrial production, this precious resource is difficult to use, and no mature market has been formed.
The use of cottonseed protein, from the beginning of the last century, scientists at home and abroad have done a lot of work, its research content relates to the nature and nutritional value of cotton protein, detoxification, protein extraction methods, and in animal feed and human food The application and other aspects. After feeding trials, the World Health Organization, the United Nations Children’s Fund Protein Advisory Group, and the Food and Agriculture Organization of the United Nations recommend that the content of free gossypol in edible cottonseed products should not exceed 0.06% and the total gossypol content should not exceed 1.2%. The U.S. Food and Drug Administration stipulated that the free gossypol residue should not exceed 0.045%. Cottonseed products have begun to enter the food industry in some developed countries.
Researcher Li Xuexian from Xinjiang Kesai Bioengineering Co., Ltd. and his expert team have achieved industrial production of glandular cotton food-grade cotton protein and gossypol through more than 6 years of investigation and research and 400 different types of experiments. Technical indicators have reached and exceeded international standards.
The main technical indicators that have been achieved so far are: the yield of cottonseed protein isolates is greater than 20%; the yield of cottonseed protein concentrates is greater than 65%; the recovery rate of gossypol is more than 20%; the free gossypol residue in cottonseed meal is lower than 0.04%.
The protein content of the main products of cotton protein isolate was more than 90%, free residual gossypol was less than 0.02%, and other indicators were in line with human consumption and product standards Q/SKSI-2002. At present, the company's daily processing of 30 tons of cottonseed kernel peeling tablets, low-temperature oil and alkali refining, dephenolization and gossypol recovery and refining, cotton protein extraction of the production line has basically reached the standard. Daily processing of 30 tons of cottonseed pieces, production of protein powder 4.2 tons / day.
In order to quickly bring this result to a tremendous economic benefit, relevant experts suggested that: the use of cotton protein should be included in the “China Nutrition Improvement Action Plan” and “China Soybean Action Plan” to give priority support; the industrial production system of cotton food-grade protein Construction, deep processing and comprehensive utilization of cotton protein, development of gossypol products and their applications in industries, agriculture, medicine, food hygiene, etc., have been incorporated into national key science and technology projects, and all forces have been organized to work together to accelerate the use of cotton wool. This kind of waste will benefit the people.

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