Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/99098
Title: Molecular characterization of natural biofilms from household taps with different materials : PVC, stainless steel, and cast iron in drinking water distribution system
Authors: Lin, Wenfang.
Yu, Zhisheng.
Chen, Xi.
Liu, Ruyin.
Zhang, Hongxun.
Keywords: DRNTU::Science::Biological sciences
Issue Date: 2012
Source: Lin, W., Yu, Z., Chen, X., Liu, R.,& Zhang, H. Molecular characterization of natural biofilms from household taps with different materials: PVC, stainless steel, and cast iron in drinking water distribution system. Applied Microbiology and Biotechnology.
Series/Report no.: Applied microbiology and biotechnology
Abstract: Microorganism in drinking water distribution system may colonize in biofilms. Bacterial 16S rRNA gene diversities were analyzed in both water and biofilms grown on taps with three different materials (polyvinyl chloride (PVC), stainless steel, and cast iron) from a local drinking water distribution system. In total, five clone libraries (440 sequences) were obtained. The taxonomic composition of the microbial communities was found to be dominated by members of Proteobacteria (65.9–98.9 %), broadly distributed among the classes Alphaproteobacteria, Betaproteobacteria, and Gammaproteobacteria. Other bacterial groups included Firmicutes, Acidobacteria, Bacteroidetes, Cyanobacteria, and Deinococcus-Thermus. Moreover, a small proportion of unclassified bacteria (3.5–10.6 %) were also found. This investigation revealed that the bacterial communities in biofilms appeared much more diversified than expected and more care should be taken to the taps with high bacterial diversity. Also, regular monitor of outflow water would be useful as potentially pathogenic bacteria were detected. In addition, microbial richness and diversity in taps ranked in the order as: PVC < stainless steel < cast iron. All the results interpreted that PVC would be a potentially suitable material for use as tap component in drinking water distribution system.
URI: https://hdl.handle.net/10356/99098
http://hdl.handle.net/10220/12632
DOI: http://dx.doi.org/10.1007/s00253-012-4557-3
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:SBS Journal Articles

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