Method for preparing microbial cultures through solid state fermentation of shrimp shells

Abstract

The invention relates to a method for preparing microbial cultures through solid state fermentation of shrimp shells, and relates to the field of feed processing. The method comprises the following steps of taking shrimp shells, soybean meal, bran and composite trace elements in a certain mass ratio, performing mixing to obtain a mixture as a fermentation substrate, regulating the moisture content, adding 3 kinds of bacteria of phaffia rhodozyma, bacillus subtilis, plant lactobacillus and the like, controlling fermentation condition, and adopting combination of aerobic fermentation and anaerobic fermentation so as to obtain the products namely the microbial cultures. When the method disclosed by the invention is used for producing the microbial cultures through solid state fermentation ofshrimp shells, the possibility that chitin in the shrimp shells is converted into functional chitosan is effectively reduced, the protein content is increased, and the method is suitable for industrial production of feeds.

Description

technical field [0001] The invention relates to the field of feed, in particular to a method for preparing microbial culture by solid-state fermentation of shrimp shells. Background technique [0002] During the processing of shrimp, a large amount of leftovers such as shrimp heads and shrimp shells will be produced, which are collectively referred to as shrimp shells. Shrimp shells are important feed resources in coastal provinces in my country. They are mainly concentrated in Zhejiang, Shandong, Liaoning and other places. Zhejiang is mainly dried. Shandong and Liaoning are mainly sun-dried. Crude protein in shrimp shells is as high as 15-35%, and it is rich in chitin and astaxanthin, which is a resource worth developing and utilizing. Due to the high cost of drying and the smell of drying, the utilization of shrimp shells is limited; the use of microbial fermentation to develop Shrimp shells are valued for their low cost and no pollution. [0003] The existing methods of ...

AI Technical Summary

Problems solved by technology

[0003] The existing methods of developing and utilizing shrimp shell resources are mainly to prepare chitin, antioxidant peptides and other products by hydrolyzing shrimp shells, fermenting, filtering, spraying and other processes, such as: Chinese Patent Application No. CN 105506039 A "Preparation of Shrimp Shells Fermented by Aspergillus oryzae Aeronautical Titanium Oxide," and Chinese Patent Application No. CN 103156049 A "A Method for Extracting Protein and Chitin by Fermenting Shrimp Heads and Shrimp Shells" disclose a method for preparing functional products from shrimp shells. High cost and will pollute the environment