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| L-乳酸高产菌株的诱变育种 | |
| 引用本文： | 李宝库,靳玉卯,路新利,马垧玻. L-乳酸高产菌株的诱变育种[J]. 酿酒科技, 2007, 0(6): 51-53 |
| 作者姓名： | 李宝库 靳玉卯 路新利 马垧玻 |
| 作者单位： | 河北大学药学院,河北,保定,071002;西北农林科技大学资源环境学院,陕西,杨凌,712100;河北省疾病预防控制中心,河北,石家庄,050000;河北大学医学部,河北,保定,071002 |
| 摘 要： | 对L-乳酸细菌(Lactobacillus casei FH2)进行诱变,得到产酸量高的突变株FH2-8-9,并与出发菌株FH2的性能进行比较,结果表明:①FH2-8-9的产酸速率明显高于FH2,且维持时间较长,具有更高的耗糖速率和糖转化率;②突变株FH2-8-9对乳酸的耐受性好,进入对数生长期的时间短,能保持更长的对数生长期,最终菌体浓度高于出发菌株FH2,FH2-8-9的菌体密度比FH2高55%. |
| 关 键 词： | 微生物 L-乳酸细菌 诱变 选育 |
| 文章编号： | 1001-9286（2007）06-0051-03 |
| 修稿时间： | 2007-02-02 |
Mutation Breeding of L-Lactic Acid High-yield Strains |
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| LI Bao-ku,JIN Yu-mao,LU-Xin li,MA Xiang-bo. Mutation Breeding of L-Lactic Acid High-yield Strains[J]. Liquor-making Science & Technology, 2007, 0(6): 51-53 | |
| Authors: | LI Bao-ku JIN Yu-mao LU-Xin li MA Xiang-bo |
| Abstract: | The mutant FH2-8-9 with high acid-producing capacity was obtained through the mutation of lactobacillus casei FH2. Through the comparison of the two strains, it was concluded that: 1. the acid-producing capacity of mutant FH2-8-9 was higher than that of lactobacillus casei FH2, and the conversion ratio of glucose of FH2-8-9 was higher and its acid-producing time was longer; 2. mutant FH2-8-9 had better tolerance, its entry in the logarithm growth period was earlier, its ultimate bacteria concentration was higher, and its bacteria density was 55 % higher than that of FH2. |
| Keywords: | microbe L- lactic acid bacteria mutation breeding |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |