| 嗜热乳酸杆菌T-1发酵特性的研究 |
| |
| 引用本文： | 高年发,石青松,马燃,周婀,韩英素. 嗜热乳酸杆菌T-1发酵特性的研究[J]. 天津科技大学学报, 2005, 20(2): 14-18 |
| |
| 作者姓名： | 高年发 石青松 马燃 周婀 韩英素 |
| |
| 作者单位： | 1. 天津市工业微生物重点实验室,天津科技大学生物工程学院,天津,300222
2. 天津科技大学现代分析技术研究中心,天津,300222 |
| |
| 摘 要： | 对产L-乳酸的一株细菌T-1进行了营养缺陷型的初步鉴定，并对其发酵特性进行了研究?初步鉴定出蛋白胨中的某些物质是它的生长因子。培养基中加入蛋白胨后，在同样时间下比不加蛋白胨时菌体量明显增长；蛋白胨含量为15g／L时，发酵L-乳酸产量达到85．0g／L，比不加蛋白胨时的产量提高了48％；转化率为81．0％，比不加蛋白胨时的转化率提高了25％，从其发酵特性试验得出了T-1的最适发酵条件。发酵液中L乳酸的纯度为99．396。
|
| 关 键 词： | L-乳酸 生长因子 蛋白胨 发酵特性 |
| 文章编号： | 1672-6510(2005)02-0014-05 |
| 修稿时间： | 2004-08-30 |
Study on Fermentation Character of Lactobacillus thermophilus T-1 |
| |
| GAO Nian-fa,SHI Qing-song,MA Ran,ZHOU E,HAN Ying-su. Study on Fermentation Character of Lactobacillus thermophilus T-1[J]. Journal of Tianjin University of Science & Technology, 2005, 20(2): 14-18 |
| |
| Authors: | GAO Nian-fa SHI Qing-song MA Ran ZHOU E HAN Ying-su |
| |
| Affiliation: | GAO Nian-fa1,SHI Qing-song1,MA Ran1,ZHOU E1,HAN Ying-su2 |
| |
| Abstract: | Some experiments were done on fermentation character of a L-lactic acid bacteria strain T-1. As a result, something in peptone was its growth factor. 85.0g/L L-lactic acid and 81.0% conversion were achieved in batch culture after 15g/L peptone had been added into the medium, improved by 480% and 250% respectively. More suitable condition of fermentation was found. The purity of L-lactic acid in broth is 99.30%. |
| |
| Keywords: | L-lactic acid growth factor peptone fermentation character |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
