High-active protein and technology for producing said protein by multiple bacterial-spawn liquid-solid combined fermentation

Abstract

The invention is a highly active protein, taking multiple agricultural and sideline products as raw materials, inoculating multiple bacterial strains and adopting liquid-solid combined fermenting process to make it. Its raw materials includes: bran, aginomoto residue, beer residue, vermicelli protein flour, and corn protein flour; and the fermenting bacterial strains: lipolytic Candida, rice aspergillus, deproteinizing Candida, black mold and Geotrichum candidum. The multi-bacterial strain liquid- solid combined fermenting process to produce highly active protein has a flow: (1) inclining bacterial strains; (2) shaking bottle to culture; (3) culturing in fermentation cylinder; (4) weighing, mixing and adding water of raw materials; (5) curing raw materials; (6) inoculating liquid bacterial strains; (7) solid-fermenting; (8) drying and crushing; (9) measuring and packaging. The highly active protein has high amino acid content, especially the number of two most important ones-lysine and methionine and that of yeast active cells are large, therefore the proportion of it replacing import fish protein concentrate can be increased from <40% to 60-80%.

Description

Technical field [0001] The invention relates to a feed additive, especially a high-activity protein that can replace imported fish meal and its production process. Background technique [0002] Imported fish meal is a kind of animal protein. Because of its biological activity, it is easily absorbed by livestock, poultry and aquatic animals. Therefore, its biological value is higher than that of other plant proteins. It is an important feed additive. It is widely used in livestock, poultry and aquaculture. considered as an important source of protein. However, due to the shortage of fishmeal resources and its important role in the aquaculture industry, its price remains high, so the work of developing fishmeal substitutes has always been valued. The usual method is to produce single-cell protein through microbial fermentation of plant protein, such as rice husk powder, monosodium glutamate residue, wine residue, starch wastewater or vermicelli wastewater, or petroleum as raw...

AI Technical Summary

Problems solved by technology

However, compared with imported fishmeal, the products obtained by these methods have considerable gaps in crude protein and amino acid balance, especially the two most important amino acids, lysine and methionine, are even more insufficient in enzyme activity and yeast living cells. aspect is not high enough

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