| 从空间搭载维生素C生产菌株中筛选高产菌株 |
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| 引用本文： | 郭立格,刘其友,杨润蕾,吕志堂,张利平,吴前进,方晓梅,蒋兴村.从空间搭载维生素C生产菌株中筛选高产菌株[J].河北大学学报(自然科学版),2004,24(3):284-287. |
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| 作者姓名： | 郭立格 刘其友 杨润蕾 吕志堂 张利平 吴前进 方晓梅 蒋兴村 |
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| 作者单位： | 1. 河北大学,生命科学学院,河北,保定,071002
2. 东方红宇航技术有限公司,北京,100086 |
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| 摘 要： | 对国内外首次经过"神舟四号"宇宙飞船搭载的维生素C生产菌株进行了初筛和复筛,得到了产2-酮基-L-古龙酸(2-KLG)的高效菌株,提高了其发酵效率.经研究发现,航天搭载使大菌发生负突变,而所筛选的418株小菌中,共筛出4株高产菌株,转化率提高了3.9%～5.2%,并发现部分菌株发酵周期有不同程度的缩短.
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| 关 键 词： | 维生素C 2-酮基-L-古龙酸 空间搭载 高产菌株 |
| 文章编号： | 1000-1565(2004)03-0284-04 |
| 修稿时间： | 2003年11月1日 |
Screening High-yield Strains of Vitamin C from Bacterial Strains Retrieved After Space Flight |
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| Abstract: | Yielding Vitamin C strains first space flight on the spaceship"shenzhou"No.4 is studied. Through the initial screening and the continuous one in this experiment,some mutant strains of high-efficience are acquired, and their ferment efficiency is improved. Space flight made Bacillus megaterium have negative mutation, but 4 strains of Gluconobacter oxydans higher yield in the 418 strains are screened. The rate of transfer is improved 3.9%～5.2%, and ferment period of some strains is shortened in some extent. |
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| Keywords: | Vtamin C 2-keto-L-guluonic space flight high-yield strains |
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