Suppr超能文献

嗜热芽孢杆菌属菌株产生胞外α-葡萄糖苷酶

Production of extracellular alpha-glucosidase by a thermophilic Bacillus species.

作者信息

Suzuki Y, Kishigami T, Abe S

出版信息

Appl Environ Microbiol. 1976 Jun;31(6):807-12. doi: 10.1128/aem.31.6.807-812.1976.

Abstract

Production of extracellular alpha-glucosidase was studied with strain KP 1006 of a new species of thermophilic Bacillus, which was isolated from soil samples by enrichment at 65 C. alpha-Glucosidase production was maximum at 60 C and at an initial pH of 6.5. The final enzyme yield was increased by starch, maltose, glycerol, peptone, and yeast extract but reduced by acetate and gluconate, alpha-Glucosidase was formed in the cytoplasm and accumulated as a large pool during the logarithmic growth phase. At a midpoint of this period, the enzyme appeared in the culture broth, and its level increased until the end of the stationary phase.

摘要

利用从土壤样品中通过在65℃富集分离得到的嗜热芽孢杆菌新种KP 1006研究了胞外α-葡萄糖苷酶的产生。α-葡萄糖苷酶在60℃和初始pH 6.5时产量最高。淀粉、麦芽糖、甘油、蛋白胨和酵母提取物可提高最终酶产量,但醋酸盐和葡萄糖酸盐会降低产量。α-葡萄糖苷酶在细胞质中形成,并在对数生长期作为一个大的储备池积累。在此阶段的中期,酶出现在培养液中,其水平一直增加到稳定期结束。

相似文献

引用本文的文献

3

本文引用的文献

10
Extracellular enzyme secretion by Pseudomonas lemoignei.勒莫因假单胞菌的细胞外酶分泌
J Bacteriol. 1974 Jul;119(1):152-61. doi: 10.1128/jb.119.1.152-161.1974.

文献检索

告别复杂PubMed语法,用中文像聊天一样搜索,搜遍4000万医学文献。AI智能推荐,让科研检索更轻松。

立即免费搜索

文件翻译

保留排版,准确专业,支持PDF/Word/PPT等文件格式,支持 12+语言互译。

免费翻译文档

深度研究

AI帮你快速写综述,25分钟生成高质量综述,智能提取关键信息,辅助科研写作。

立即免费体验