Glutamic acid fermentation method for improving utilization rate of thallus

Abstract

The invention belongs to the technical field of amino acid production, and discloses a glutamic acid fermentation method for improving the utilization rate of thallus. The method comprises the following steps of: preparing a glutamic acid fermentation liquid: inoculating a seed solution of glutamic acid producing bacteria into a seed tank, carrying out infectious microbe detection, and carrying out fermentation culture by using the seed solution without infectious microbes to obtain the glutamic acid fermentation liquid; separating a glutamic acid material liquid and mycoprotein in the obtained glutamic acid fermentation liquid by using a high-speed disc separator to remove fermentation thallus; carrying out low-temperature evaporation concentration by using a multi-effect plate evaporator to obtain a glutamic acid concentrate; and extracting glutamic acid based on the obtained glutamic acid concentrate. The method effectively prolongs the glutamic acid fermentation acid production period and improves the sugar acid conversion rate. Glutamic acid fermentation waste thallus are used to prepare a fermentation medium to realize secondary utilization for glutamic acid fermentation, and high-speed centrifugal separation effectively improves the yield of the thallus, fully performs the fermentation characteristics of the thallus and improves the utilization rate of the thallus.

Description

technical field [0001] The invention belongs to the technical field of amino acid production, and in particular relates to a glutamic acid fermentation method for improving the utilization rate of bacteria. Background technique [0002] At present: Amino acids have played an increasingly widespread role in the food industry, medicine, agriculture, animal husbandry, and human health, health care, and cosmetics industries. According to a survey report released by the International Amino Acid Science Association, the Asia-Pacific region has become the world's largest amino acid market. China is a big country in the production and consumption of amino acids. It ranks among the top in the world both in terms of total industrial output and annual output value, and plays an important role in the development of my country's national economy. [0003] As a traditional industrial production industry, the bio-fermentation industry also has the problems of high energy consumption, high...

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Problems solved by technology

[0006] Through the above analysis, the existing problems and defects of the prior art are: the existing glutamic acid fermentation seed liquid is not pure, there are many fermentation by-products, and the fermentation conversion rate and efficiency are low

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