The influent factors of nitrite-degradation by Lactobacillus rhanwosus were studied in this experiment. The results showed that the optimal pH value and temperature were 5.0-6.0 and 40℃, respectively. The concentrations of carbon source, nitrogen source and yeast extract in the culture medium were 2% glucose, 0.5% soy peptone and 0.4% yeast extract, respectively. The nitrite degradation rate could be improved by adding metal ion such as Fe+, Fe+ and Cu2+. The optimal inoculum was 3% and the cultivation method was dynamic fermentation.%该试验研究鼠李糖乳杆菌降解亚硝酸盐的影响因素.研究发现,鼠李糖乳杆菌降解亚硝酸盐的最适pH值是5.0~6.0,最适温度是40℃;培养基中碳源、氮源、酵母膏、金属离子成分分别为2%葡萄糖、0.5%大豆蛋白胨、0.4%酵母膏;添加Fe2+、Fe3+、Cu2+的亚硝酸盐降解效果明显;最适接种量3%;最适培养方式为动态培养.
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