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题名: Microcalorimetric study on the growth and metabolism of microencapsulated microbial cell culture
作者: Ma, J.;  Qi, W. T.;  Yang, L. N.;  Yu, W. T.;  Xie, Y. B.;  Wang, W.;  Ma, X. J.;  Xu, F.;  Sun, L. X.
通讯作者: 马小军
关键词: microcalorimetry ;  microencapsulation ;  microbial ;  growth and metabolism
刊名: JOURNAL OF MICROBIOLOGICAL METHODS
发表日期: 2007
DOI: 10.1016/j.mimet.2006.07.007
卷: 68, 期:1, 页:172-177
收录类别: SCI
文章类型: Article
部门归属: 18,15
项目归属: 1802,1504
产权排名: 1;1
WOS标题词: Science & Technology ;  Life Sciences & Biomedicine
类目[WOS]: Biochemical Research Methods ;  Microbiology
研究领域[WOS]: Biochemistry & Molecular Biology ;  Microbiology
英文摘要: The rate of heat output is one of the suitable measurements of metabolic activity of the organism or its parts, down to the cellular or even the sub-cellular levels. In this paper, microcalorimetry was first applied to study the metabolic activity of microbial in both alginate-polylysine-alginate and alginate-chitosan-alginate microencapsulated cultures as well as in free non-encapsulated culture. The organisms used for the measurements were Escherichia coli and Saccharomyces cerevisiae. As a result of this work, it was found that, despite E. coli cell in free non-encapsulated culture has the highest metabolic rate due to the highest value of heat output, the proliferation of the cells terminates quickly with a lowest biomass formed. And we found also an obviously longer stationary phase in microencapsulated culture. As far as S. cerevisiae was concerned, it was found that there was also the highest value of heat output in free non-encapsulated culture, but the cell density was lower than that in microencapsulated culture. On account of the microcalorimetric and metabolic measurements, it can be concluded that more substrate can be used to convert to biomass in microencapsulated culture which means a higher biomass yield existed. (c) 2006 Elsevier B.V. All rights reserved.
关键词[WOS]: ARTIFICIAL CELLS ;  MAMMALIAN-CELLS ;  ALGINATE BEADS ;  ENCAPSULATION ;  MICROCAPSULE ;  DELIVERY
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000244012300022
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/98467
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Lab Biomed Mat Engn, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Thermochem Lab, Dalian 116023, Peoples R China
3.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

Recommended Citation:
Ma, J.,Qi, W. T.,Yang, L. N.,et al. Microcalorimetric study on the growth and metabolism of microencapsulated microbial cell culture[J]. JOURNAL OF MICROBIOLOGICAL METHODS,2007,68(1):172-177.
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