Method for producing single-cell protein feed by utilizing bean product waste water

Abstract

The invention provides a method for producing a single-cell protein feed by utilizing bean product waste water. A modern microorganism fermentation technology is adopted, and through the steps of high-speed strain liquid culture, deep layer liquid culture of the bean product waste water and the like, a great amount of yellow serofluid, bean soaking water, soybean whey waste water and the like generated in bean product production by utilizing a plurality of target microorganisms of mycete, fungi and bacteria are subjected to a deep layer liquid fermentation technology to produce a protein feed rich in single-cell protein and various biological metabolism enzymes, so that the requirement of increasing protein feeds can be met, and the method for producing the single-cell protein feed by utilizing bean product waste water is a novel technology which turns waste into wealth, and reduces the environment pollution caused by food processing waste water greatly.

Description

technical field [0001] The invention relates to a process for producing single-cell protein feed using soybean product wastewater. The fermented feed also contains various probiotics, biological enzymes and biological activities that are beneficial to the digestion and absorption capacity of livestock and poultry, and improve immunity and cold stress resistance. A substance belongs to the technical field of agricultural products. Background technique [0002] Soy products are food processed from soybeans, mung beans, peas, broad beans and other beans as the main raw materials. The soy milk, soy milk, and tofu that everyone is most familiar with every day are the representatives. Soybean processing generally involves steps such as bean soaking, grinding, separation, slag washing, and solidification. A large amount of water is consumed or used in each link. Therefore, there is an old saying "tofu is made of water", "three Divide soybeans into seven parts of water", my country...

AI Technical Summary

Problems solved by technology

[0003] After the soy product wastewater is collected, it generally enters the sewage treatment plant of the food factory for treatment. After the treatment, the environment is treated, but a large amount of water-soluble protein, oil, total sugar, and water-soluble vitamins in the wastewater are also wasted.

In order to recover the renewable material resources in soybean product wastewater, membrane separation technology is currently used to separate oligosaccharides and proteins in wastewater. However, the high operating costs caused by membrane replacement and cleaning make the economic benefits very small, which seriously restricts its popularization and application. Soy product wastewater contains a large amount of biomass such as protein, polysaccharide, and oil, which is the most important method for the production of single-cell protein (SCP ) of good raw materials. Using the high-concentration whey wastewater discharged from the soybean protein production process for SCP production, while SCP produces good economic benefits, it can greatly reduce the COD concentration of soybean product wastewater, reduce the subsequent wastewater treatment costs and the emissions of methane and CO2