Synergist for lactococcus lactis subsp. lactis capable of generating nisin through fermentation and use method of synergist
A technology of nisin and Lactococcus lactis, applied in the field of microbial fermentation, can solve the problems of complicated operation, increase of uncontrollable influencing factors, etc., and achieve the effects of improving metabolism, broad market application prospect and shortening production cycle.
Active Publication Date: 2016-05-11
HUBEI UNIV OF TECH
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Although nisin has been improved, the operation
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The invention relates to a synergist for lactococcus lactis subsp. lactis capable of generating nisin through fermentation and a use method of the synergist. The synergist is prepared from, by weight, 0.02-1.5 parts of taurine, 0.003-0.006 part of selenium, 0.03-0.8 part of proline, 0.05-1.0 part of lysine and 0.02-0.052 part of inositol. The synergist is added into an M17 culture medium, and then lactic acid bacteria capable of generating the nisin are inoculated for fermentation. All the ingredients of the synergist are easy to obtain, low in purchase cost and simple in use method. Experiments show that the synergist can obviously improve the nisin yield of the lactic acid bacteria, synergia is obvious, therefore, the production cost of the nisin is reduced, the production cycle is shortened, and the production efficiency is improved.
Description
technical field [0001] The invention belongs to the technical field of microbial fermentation, and in particular relates to a synergist for Lactococcus lactis subsp. Background technique [0002] Lactic acid bacteria is a general term for a group of Gram-positive bacteria capable of producing large amounts of lactic acid from fermentable carbohydrates. The lactic acid bacteria found in nature are divided into 43 genera in bacterial taxonomy, such as Bacillus, Listeria, Bacillus, Lactobacillus, Paralactobacter, Streptococcus , Lactococcus, Corynebacterium, Bifidobacterium and other genera. Most lactic acid bacteria can synthesize bacteriocins during their metabolism, collectively referred to as lactobacillus, Lactococcus lactis is widely used in the dairy industry. Lactococcus lactis can produce bacteriocins: diplococcin, lactococcus, nisin and nisin. Prominent among these is the bacteriocin Nisin produced by the various Lactococcus lactis subs P. Lactis. [0003] Nisin w...
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Login to view more IPC IPC(8): C12N1/38C12N1/20C12P21/00C12R1/01
CPCC12N1/20C12N1/38C12P21/00
Inventor 汪超柳念周梦舟李冬生徐宁胡勇李玮李斌
Owner HUBEI UNIV OF TECH
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