Method utilizing brewer's grains to produce biological diet cellulose and product thereof

Abstract

The invention relates to a method utilizing brewer's grains to produce biological diet cellulose. The method comprises the steps of after adding water to the brewer's grains and diluting, adding or not adding other nutrient substances, and using the brewer's grains serving as a biological diet cellulose producing bacterium culture medium after sterilization; or adding water to the brewer's grains and jordaning, preserving heat for 1 to 2 hours at the temperature ranging from 60 DEG C to 90 DEG C, filtering and removing solid substances, adding or not adding other nutrient substances to filtrate, and using the filtrate as a culture medium after sterilization; or adding water to the brewer's grains and jordaning, adjusting pH to be 5 to 6, standing for 20 to 40 minutes, adding 5 wt% to 10 wt% of protease to filtrate after filtering and removing solid substances, performing enzymolysis for 1 to 3 hours while preserving heat at the temperature ranging from 50 DEG C to 70 DEG C, adjusting pH to be neutral, adding or not adding other nutrient substances after filtering and removing solid substances again, and using the filtrate serving as a culture medium after sterilization. The method can fully utilize nutrient components including crude protein, cellulose and the like in the brewer's grains so as to achieve good fermentation effect.

Description

technical field [0001] The invention relates to a comprehensive reuse technology of brewer's grains, a by-product of the beer industry, in particular to a method for producing biological dietary cellulose by using brewer's grains and a biological dietary cellulose product obtained by the method. Background technique [0002] my country's beer production has ranked first in the world since 2002, and the current annual production is about 40 million tons. Brewer's grains are the main by-products in beer production, and 1 / 4 ton of brewer's grains will be produced for every ton of beer produced. Brewer's grains are the solid matter remaining after filtration or pressure filtration of malt, rice and hops, which are raw materials for beer production, through saccharification and gelatinization processes. It contains a lot of nutrients, but because of its high water content, it is easy to rot, so most manufacturers directly sell it to farmers at a low price for use as feed, and so...

AI Technical Summary

Problems solved by technology

At present, the production of biocellulose usually uses coconut water as the fermentation medium, and various sugars, beef extract, peptone, etc. are also used to directly configure liquid medium. However, the source of coconut water is restricted by region, and the configured Media costs are high

There are currently no reports on the use of brewer's grains in the production of biocellulose