Influence of Exopolymeric Materials on Bacterially Induced Mineralization of Carbonates

被引：38
作者：
Bains, Amrita [1 ]
Dhami, Navdeep Kaur [1 ]
Mukherjee, Abhijit [2 ]
Reddy, M. Sudhakara [1 ]
机构：
[1] Thapar Univ, Dept Biotechnol, Patiala 147004, Punjab, India
[2] Curtin Univ, Dept Civil Engn, Perth, WA 6845, Australia
来源：
APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY | 2015年 / 175卷 / 07期
关键词：
Bacillus megaterium; EPS; CPS; Biofilm; Microbial carbonate precipitation; EXTRACELLULAR POLYMERIC SUBSTANCES; CALCIUM-CARBONATE; SURFACE-TREATMENT; LIQUID-MEDIA; PRECIPITATION; BIOMINERALIZATION; EXOPOLYSACCHARIDES; ANHYDRASE; BIOFILMS; GROWTH;
D O I：
10.1007/s12010-015-1524-3
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
Microbially induced calcium carbonate precipitation is an immensely growing technology for restoration and remediation of building materials. The investigation on role of exopolymeric substances and biofilms in microbially induced calcium carbonate precipitation suggested that these exopolymeric materials play major role in carbonate precipitation in Bacillus megaterium SS3 along with enzymes urease and carbonic anhydrase. The concentration of EPS directly affects the precipitation of carbonate precipitates which might be due to capturing of Ca2+ ions by acting as nucleation site. Components of the media and presence of calcium also play crucial role in production of exopolymeric substances along with affecting the morphology of carbonate precipitates.
引用
收藏
页码：3531 / 3541
页数：11
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