Bacillus mucilaginosus can capture atmospheric CO2 by carbonic anhydrase

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	Bacillus mucilaginosus can capture atmospheric CO2 by carbonic anhydrase
	Xin Li; Zhicai Zhang; Bin Lian; Weiguo Hou; Mingxia Chen; Yan Li
刊名	African Journal of Microbiology Research
	2011
卷号	5 期号:2 页码:106-112
关键词	Bacillus Mucilaginosus Carbonic Anhydraseequilibrium Point Co2 Utilization Catalyze
通讯作者	Bin Lian
英文摘要	The study mainly demonstrated whether Bacillus mucilaginosus can use atmospheric carbon dioxide (CO2) through the bacteria excreted carbonic anhydrase (CA) capturing atmospheric CO2. It had been proved that CA could reversibly catalyze hydration of CO2. When the bacteria was cultured in the medium containing limestone, Ca2+ concentration and CA activities simultaneously increased with the amount of limestone increasing in the medium. Analysis for the bacterial growth kinetics demonstrated Ca2+ concentration increased, CA activities enhanced and pH value of broth rose and residual glycerol concentration decreased with prolonging fermentation time. Ca2+ concentration of bacterial broth gradually increased with the increasing of amount CA supply and time extension when the bacteria were cultured in the Alexandrov medium containing limestone, in which CA synthesized was extremely low when limestone dissolved into water, CA could elevate Ca2+ concentration and pH value, and the bacteria might further elevated the Ca2+ concentration and pH value. Therefore, it is suggested that B. mucilaginosus can first capture atmospheric CO2 by CA, then fix atmospheric CO2 by bacteria metabolism, which complements the content of biology and provide a new strategy for CO2 sequestration from the air.
学科主题	环境地球化学
语种	英语
公开日期	2017-12-29
内容类型	期刊论文
源URL	[http://ir.gyig.ac.cn:8080/handle/352002/7020]
专题	地球化学研究所_环境地球化学国家重点实验室_环境地球化学国家重点实验室_期刊论文
通讯作者	Bin Lian
推荐引用方式 GB/T 7714	Xin Li,Zhicai Zhang,Bin Lian,et al. Bacillus mucilaginosus can capture atmospheric CO2 by carbonic anhydrase[J]. African Journal of Microbiology Research,2011,5(2):106-112.
APA	Xin Li,Zhicai Zhang,Bin Lian,Weiguo Hou,Mingxia Chen,&Yan Li.(2011).Bacillus mucilaginosus can capture atmospheric CO2 by carbonic anhydrase.African Journal of Microbiology Research,5(2),106-112.
MLA	Xin Li,et al."Bacillus mucilaginosus can capture atmospheric CO2 by carbonic anhydrase".African Journal of Microbiology Research 5.2(2011):106-112.