NDLI: Lactose mother liquor as an alternative nutrient source for microbial concrete production by Sporosarcina pasteurii

Content Provider	Springer Nature Link
Author	Achal, V. Mukherjee, A. Basu, P. C. Reddy, M. S.
Copyright Year	2008
Abstract	Microbiologically induced calcite precipitation by the bacterium Sporosarcina pasteurii (NCIM 2477) using the industrial effluent of the dairy industry, lactose mother liquor (LML) as growth medium was demonstrated for the first time in this study. The urease activity and the calcite precipitation by the bacterium was tested in LML and compared with the standard media like nutrient media and yeast extract media. Calcite constituted 24.0% of the total weight of the sand samples plugged by S. pasteurii and urease production was found to be 353 U/ml in LML medium. The compressive strength of cement mortar was increased by S. pasteurii in all the media used compared to control. No significant difference in the growth, urease production and compressive strength of mortar among the media suggesting LML as an alternative source for standard media. This study demonstrates that microbial calcite acts as a sealing agent for filling the gaps or cracks and fissures in constructed facilities and natural formations alike.
Starting Page	433
Ending Page	438
Page Count	6
File Format	PDF
ISSN	13675435
Journal	Journal of Industrial Microbiology and Biotechnology
Volume Number	36
Issue Number	3
e-ISSN	14765535
Language	English
Publisher	Springer-Verlag
Publisher Date	2008-12-24
Publisher Place	Berlin, Heidelberg
Access Restriction	Subscribed
Subject Keyword	Sporosarcina pasteurii Bacillus pasteurii Calcite Urease Lactose mother liquor Compressive strength Microbiology Bioinformatics Biotechnology Genetic Engineering Inorganic Chemistry Biochemistry
Content Type	Text
Resource Type	Article
Subject	Medicine Bioengineering Applied Microbiology and Biotechnology Biotechnology

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