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《China Condiment》 2016-06
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Isolation and Identification of Lactic Acid Bacteria with High Acid Production and Efficiency Degradation of Nitrite in Pickles

YU Hua;LIU You-qing;HUANG Dan;MAO Xiang;College of Bioengineering,Sichuan University of Science and Engineering;  
Sichuan pickles are as the research object,an advantage lactic acid bacterium with high acid production and nitrite degradation is screened,and its degradation ability of nitrite in pickles is studied.The lactic acid bacterium is isolated by pour plate method and transparent circle method,and the dominant strain is screened through determination of total acids and nitrite degradation ability,the strain is identified by molecular biological,and the nitrite degradation ability of different addition amount of this strain in pickles' production process is studied.The result shows that a strain of high acid production and high efficiency nitrite degradation is identified as Lactobacillus plantarum.The nitrite degradation rate of the strain is as high as 99%,and the optimum addition amount is 0.375%in the process of pickles' production.This study has laid a foundation for the upgrading of pickles' fermentation process in industry.
【Fund】: 四川省富顺县科技创新基金项目(201512);; 固态发酵资源利用四川省重点实验室基金项目(2015GTY010)
【CateGory Index】: TS255.54
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