西北酸菜高效复合发酵菌种的筛选

Screening of Composite Fermentation Strains for Pickled Vegetable Commercialized in Northwest China

从西北酸菜中分离出53株菌株,对其进行单因素接种发酵、分子鉴定、生理生化、适温与低温产酸速度、降解亚硝酸盐能力测定后,筛选出在产酸速度快的AC-5、醇香味适中的Y7、降解亚硝酸达78.17%的L5、发酵风味接受度最高的L8这4种菌株,为西北酸菜提供高效发酵菌株。

Totally 53 strains were separated from fermented pickled vegetable commercialized in northwest China.Four excellent strains such as AC-5 with high acid-producing rate,Y7 with moderate mellow taste,L5 with 78.17% nitrite-degrading capacity and L8 with the highest acceptability for fermentation flavor were screened out by single strain fermentation,molecular identification,physiological and biochemical tests,acid production and nitrite degradation.These strains can provide highly effective fermentation for northwest pickled vegetable.