| 乳酸菌降解亚硝酸盐机理的研究 |
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| 引用本文： | 张庆芳,迟乃玉,郑燕,王淑琴,冯颖,孟宪军,薛景珍,魏毓棠.乳酸菌降解亚硝酸盐机理的研究[J].食品与发酵工业,2002,28(8):27-31. |
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| 作者姓名： | 张庆芳 迟乃玉 郑燕 王淑琴 冯颖 孟宪军 薛景珍 魏毓棠 |
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| 作者单位： | 1. 大连大学生物工程学院,大连,116622
2. 沈阳农业大学食品学院,沈阳,110161 |
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| 摘 要： | 对乳酸菌降解亚硝酸盐机理进行了研究。其机理为 :乳酸菌对亚硝酸盐的降解分为酶降解和酸降解 2个阶段。在发酵的前期 ,培养液 pH值 >4 5时 ,乳酸菌对亚硝酸盐降解以酶降解为主 ;发酵后期 ,由于乳酸菌本身产生酸 ,使培养液 pH值降低 ,<4 0后 ,亚硝酸盐的降解主要以酸降解为主。由于乳酸杆菌产酸能力强于球菌 ,乳酸杆菌降解亚硝酸盐能力大于乳酸球菌 ,而在发酵前期 (pH值 >4 5 ) ,杆菌与球菌降解亚硝酸盐并无差别。
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| 关 键 词： | 乳酸菌 亚硝酸盐 降解机理 |
| 修稿时间： | 2002年1月11日 |
The Study on Mechanism of Nitrite Degradation by Lactic Acid Bacteria |
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| Zhang Qingfang,Chi Naiyu,Zheng Yan,Wang Suqin,Feng Ying,Meng Xianjun,Xue Jingzhen,Wei Yutang.The Study on Mechanism of Nitrite Degradation by Lactic Acid Bacteria[J].Food and Fermentation Industries,2002,28(8):27-31. |
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| Authors: | Zhang Qingfang Chi Naiyu Zheng Yan Wang Suqin Feng Ying Meng Xianjun Xue Jingzhen Wei Yutang |
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| Affiliation: | Zhang Qingfang 1 Chi Naiyu 1 Zheng Yan 2 Wang Suqin 2 Feng Ying 2 Meng Xianjun 2 Xue Jingzhen 2 Wei Yutang 2 1 |
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| Abstract: | The mechanism on nitrite degradation by lactic acid bacteria was studied and established. The degradation course was divided into enzymolysis and acid splitting:in the early fermentation process,fermentation soup's pH>4.5,enzymolysis was the main controller,then when the pH<4.0 with the amount of acid was increasing,acid splitting became the controller,the nitrite degradation ability of lactobacillus was stronger than lactococcus because of it's acid producing ability. |
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| Keywords: | lactic acid bacteria nitrite degradation mechanism |
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