Bacillus mucilaginosus can capture atmospheric CO2 by carbonic anhydrase

	Bacillus mucilaginosus can capture atmospheric CO2 by carbonic anhydrase
	Zhicai Zhang; Bin Lian; Weiguo Hou; Mingxia Chen; Xin Li; Yan Li
通讯作者	Bin Lian
	2011
发表期刊	African Journal of Microbiology Research
卷号	5 期号:2 页码:106-112
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.
关键词	Bacillus Mucilaginosus Carbonic Anhydraseequilibrium Point Co2 Utilization Catalyze
学科领域	环境地球化学
收录类别	SCI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.gyig.ac.cn/handle/352002/7020
专题	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	Zhicai Zhang,Bin Lian,Weiguo Hou,et al. Bacillus mucilaginosus can capture atmospheric CO2 by carbonic anhydrase[J]. African Journal of Microbiology Research,2011,5(2):106-112.
APA	Zhicai Zhang,Bin Lian,Weiguo Hou,Mingxia Chen,Xin Li,&Yan Li.(2011).Bacillus mucilaginosus can capture atmospheric CO2 by carbonic anhydrase.African Journal of Microbiology Research,5(2),106-112.
MLA	Zhicai Zhang,et al."Bacillus mucilaginosus can capture atmospheric CO2 by carbonic anhydrase".African Journal of Microbiology Research 5.2(2011):106-112.

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