Process for producing yeast from waste beer yeast liquid

Abstract

The technological process of preparing zymogen with waste beer yeast liquid includes the following steps: heating waste beer yeast liquid to 50-55 deg.c and maintaining at the temperature for certain period while controlling pH 5.5-6.5; adding salt, potassium dihydrogen phosphate and magnesium chloride to promote cell wall breaking and autolysis while maintaining the temperature and stirring; adding enzyme preparation before maintaining for 25-30 hr to dissolve cell completely and to make amino acid, nucleotide and other nutrients dissolved into solution; and further centrifugation, concentration and disinfection to obtain zymogen. Owing to the addition of helicase and neutral proteinase as enzyme preparation and the strict control in reaction temperature and pH value, the zymogen prepared is delicious and mellow and may be used as seasoning. In addition, the production process is short and high in yield.

Description

field of invention

[0001] The present invention relates to a method for making edible seasoning, more specifically, to a process for preparing yeast essence by using waste yeast liquid, and the prepared yeast essence can be used as seasoning or food additive for cooking or as a side dish , It can also be used in pharmaceutical manufacturing, oil exploration and other industries. Background technique

[0002] Waste yeast liquid is a by-product in the beer production process, which accounts for about 2% of beer production. For a long time, except a small amount of waste yeast liquid is reused for production or as feed, most of it is discarded, which causes a waste of materials , and seriously polluted the environment. However, after testing, it was found that this waste yeast liquid contains a large amount of protein, various amino acids, nucleic acids and B vitamins, and is rich in nutrients. So someone processed the waste yeast liquid to produce yeast essence, which not on...

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