【摘要】 从发酵初期的天津冬菜中分离到1株乳酸菌,经形态观察及生理生化等实验验证,初步鉴定其为肠膜明串珠菌(Leuoconostoc mesenteroieds)W-58,对其降解亚硝酸盐的过程进行了初步研究。结果表明,该株菌对亚硝酸盐有明显的降解作用,进一步研究温度和底物浓度与分离菌株去除亚硝酸盐量的关系,表明W-58菌株对亚硝酸盐的降解主要为产酶降解。更多还原

【Abstract】 A lactic acid bacterium was isolated from Tianjin Dongcai at initial fermentation.It was primarily identified as Leuconostoc mesenteroides W-58 by morphology and investigation of physiological and biochemical characteristic.Preliminary analysis of nitrite degeneration process was conducted.The result indicated that this strain has an obvious ability of decomposing nitrite.Effects of temperature and substrate concentration on nitrite degradation levels were further studied,which showed that nitrite decomposition was induced by enzyme action.更多还原