Abstract：
:Poly(butanediol succinate) (PBS), a biodegradable polymer, was used as both solid carbon source and biofilm carrier for biological nitrate removal process, in which PBS was filled in a packed-bed bioreactor. The denitrification performance and the microbial diversity of biofilm attached on the surface of PBS were investigated. The experimental results showed that the volumetric denitrification rate was 0.60 kg m(-3) day(-1) when NO3-N loading rate was 0.63 kg m(-3) day(-1), and the average NO2-N concentration was below 0.20 mg L(-1). The effluent pH value decreased slightly from a range of 6.98-7.87 to 6.46-7.18. The analysis of microbial community structure of biofilm by pyrosequencing method showed that Proteobacteria was the most abundant phylum (89.87 %), and β-Proteobacteria represented the most abundant class. Among the 76 identified genera, Dechloromonas (10.26 %), Alicycliphilus (9.15 %), Azospira (8.92 %), and Sinobacteraceae-uncultured (8.75 %) were the abundant genera. PBS, as a promising alternative carbon source, is a suitable solid carbon source and biofilm carrier for nitrate removal.
journal_name
Appl Microbiol Biotechnoljournal_title
Applied microbiology and biotechnologyauthors
Shen Z,Yin Y,Wang Jdoi
10.1007/s00253-016-7435-6subject
Has Abstractpub_date
2016-07-01 00:00:00pages
6047-53issue
13eissn
0175-7598issn
1432-0614pii
10.1007/s00253-016-7435-6journal_volume
100pub_type
杂志文章abstract：:Iron reduction mediated by Fe(III)-reducing bacteria (FeRB) occurs in aqueous environments and plays an essential role in removing contaminates in polluted freshwater lakes. Two model FeRB species, Shewanella and Geobacter, have been intensively studied because of their functions in bioremediation, iron reduction, and...
journal_title：Applied microbiology and biotechnology
pub_type： 杂志文章
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abstract：:Pullulan is a linear glucosic polysaccharide produced by the polymorphic fungus Aureobasidium pullulans, which has long been applied for various applications from food additives to environmental remediation agents. This review article presents an overview of pullulan's chemistry, biosynthesis, applications, state-of-t...
journal_title：Applied microbiology and biotechnology
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abstract：:L-Ribose is a rare and expensive sugar that can be used as a precursor for the production of L-nucleoside analogues, which are used as antiviral drugs. In this work, we describe a novel way of producing L-ribose from the readily available raw material L-arabinose. This was achieved by introducing L-ribose isomerase ac...
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abstract：:Cellobiose dehydrogenases (CDHs) are extracellular glycosylated haemoflavoenzymes produced by many different wood-degrading and phytopathogenic fungi. Putative cellobiose dehydrogenase genes are recurrently discovered by genome sequencing projects in various phylogenetically distinct fungi. The genomes from the basidi...
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更新日期：2015-02-01 00:00:00
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abstract：:Biosurfactant rhamnolipids have been claimed to show biological activities of inhibiting the proliferation of cancer cells. In this study, the cytotoxicity of rhamnolipids was examined on four cancer cells (HepG2, Caco-2, Hela, MCF-7 cells) and two normal cells (HK-2 cell, primary hepatocyte). Interestingly, both canc...
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更新日期：2014-12-01 00:00:00
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更新日期：2019-03-01 00:00:00
abstract：:Streptomyces avermitilis is well known as the producer of anthelmintic agent avermectins, which are widely used in agriculture, veterinary medicine, and human medicine. aveI encodes a TetR-family regulator, which is the homolog of AtrA. It was reported that deletion of aveI caused enhanced avermectin production. In th...
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