ISSN:
1476-5535
Keywords:
Concrete biodegradation
;
Signature lipid
;
Fatty acid
;
Thiobacilli
;
Acid-producing bacteria
;
Hydroxy-cyclopropyl fatty acid
;
Methoxy fatty acid
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Process Engineering, Biotechnology, Nutrition Technology
Notes:
Summary The acid-producing thiobacilli contain fatty acid components in the polar lipids and lipopolysaccharide lipid A that are sufficiently unusual that they can be utilized as ‘signature’ lipid biomarkers for these organisms in environmental samples. Studies in microcosms have shown correlations between activity of these organisms, measured by recovery and viable counting, and the degradation of concrete. The ‘signature’ lipid analysis provides a detection assay requiring neither separation of the organisms from the substratum nor growth prior to determination. The presence of acid-producing thiobacilli was demonstrated in microcosm samples and degenerating concrete from the Hamburg (F.R.G.) sewer system.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01569504
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