Abstract:
:The complete biodegradation of azo dye, Fast Acid Red GR, was observed under microaerophilic conditions by Shewanella decolorationis S12. Although the highest decolorizing rate was measured under anaerobic condition and the highest biomass was obtained under aerobic condition, a further biodegradation of decolorizing products can only be achieved under microaerophilic conditions. Under microaerophilic conditions, S. decolorationis S12 could use a range of carbon sources for azo dye decolorization, including lactate, formate, glucose and sucrose, with lactate being the optimal carbon source. Sulfonated aromatic amines were not detected during the biotransformation of Fast Acid Red GR, while H(2)S formed. The decolorizing products, aniline, 1,4-diaminobenzene and 1-amino-2-naphthol, were followed by complete biodegradation through catechol and 4-aminobenzoic acid based on the analysis results of GC-MS and HPLC.
journal_name
Appl Microbiol Biotechnoljournal_title
Applied microbiology and biotechnologyauthors
Xu M,Guo J,Sun Gdoi
10.1007/s00253-007-1032-7subject
Has Abstractpub_date
2007-09-01 00:00:00pages
719-26issue
3eissn
0175-7598issn
1432-0614journal_volume
76pub_type
杂志文章abstract::A comparative study was carried out in anaerobic batch cultures on 20 g/l of either glycerol or glucose using two propionibacteria strains, Propionibacterium acidipropionici and Propionibacterium freudenreichii ssp. shermanii. In all cases, fermentation end-products were the same and consisted of propionic acid as the...
journal_title:Applied microbiology and biotechnology
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abstract::The genus Aspergillus is widely used for the production of plant cell wall polysaccharide-degrading enzymes. The range of enzymes purified from these fungi covers nearly every function required for the complete degradation of cellulose, xyloglucan, xylan, galacto(gluco)mannan and pectin. This paper describes the Asper...
journal_title:Applied microbiology and biotechnology
pub_type: 杂志文章,评审
doi:10.1007/s00253-002-1171-9
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abstract::The genes encoding two conjugated polyketone reductases (CPR-C1, CPR-C2) of Candida parapsilosis IFO 0708 were cloned and sequenced. The genes encoded a total of 304 and 307 amino acid residues for CPR-C1 and CPR-C2, respectively. The deduced amino acid sequences of the two enzymes showed high similarity to each other...
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abstract::Myxobacteria are Gram-negative soil microorganisms that prey on other microorganisms. Myxobacteria have significant potential for applications in biotechnology because of their extraordinary ability to produce natural products such as secondary metabolites. Myxobacteria also stand out as model organisms for the study ...
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doi:10.1007/s00253-006-0455-x
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abstract::The upstream region of the cellobiohydrolase gene cbhA of Clostridium thermocellum F7 was sequenced. It was found that this region contains the previously sequenced gene celK encoding an enzyme closely related to CbhA (cellulosomal subunit S3). The presence of a putative transcription terminator in the 524-bp intergen...
journal_title:Applied microbiology and biotechnology
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abstract::Streptomyces lividans IAF18, obtained by homologous cloning, is capable of over-producing XlnA. To investigate the possibility of the expression of foreign genes, various coding regions of the xylanase A gene (xlnA) were analysed. Expression/secretion vectors were constructed containing the regulatory elements of xlnA...
journal_title:Applied microbiology and biotechnology
pub_type: 杂志文章
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abstract::Surface sediments are the inner source of contaminations in aquatic systems and usually maintain aerobic conditions. As the key participators of nitrification process, little is known about the activities and contributions of ammonia-oxidizing archaea (AOA) and bacteria (AOB) in the surface sediments. In this study, w...
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abstract::In this work, phytosterol-biotransforming strains were selected from Mycobacterium sp., using a high concentration of beta-sitosterol. The selection was made by culturing the strains in a medium enriched with 14 g beta-sitosterol/l as the unique source of carbon. During 2 months, the bacterial cultures were transferre...
journal_title:Applied microbiology and biotechnology
pub_type: 杂志文章
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abstract::Although yeasts are known to be able to incorporate a wide variety of exogenous sterols under strict anaerobiosis, no data are available on the assimilation of grapevine phytosterols under enological conditions and the eventual impact on fermentation kinetics. We used therefore a mixture of pure phytosterols, in a pro...
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doi:10.1007/s00253-016-7398-7
更新日期:2016-08-01 00:00:00
abstract::Malaria is a parasitic, mosquito-borne, infectious disease that threatens nearly half of the global population. The last decade has seen a dramatic drop in the number of malaria-related deaths because of vector control methods and anti-malarial drugs. Unfortunately, this strategy is not sustainable because of the emer...
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abstract::Immobilization has been reported as an efficient technique to address the bacterial vulnerability for application in bio self-healing concrete. In this study, for the first time, magnetic iron oxide nanoparticles (IONs) are being practically employed as the protective vehicle for bacteria to evaluate the self-healing ...
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abstract::This study investigated the effects of vanillin on methanogenesis and rumen fermentation, and the responses of ruminal protein-degrading bacteria to vanillin (at concentrations of 0, 0.76 and 1.52 g/L), essential oils (clove oil, 1 g/L; origanum oil, 0.50 g/L, and peppermint oil, 1 g/L), and quillaja saponin (at conce...
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doi:10.1007/s00253-013-4930-x
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abstract::The response behavior of three dissimilatory perchlorate-reducing bacteria to different electron acceptors (nitrate, chlorate, and perchlorate) was investigated with two different assays. The observed response was species-specific, dependent on the prior growth conditions, and was inhibited by oxygen. We observed attr...
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更新日期:2009-10-01 00:00:00
abstract::Two novel cyclic hexapeptides designated actinosynneptides A (1) and B (2), together with three tryptophan containing diketopiperazines, namely cyclo(L-Trp-L-Trp) (3), cyclo(L-Trp-N-MeL-Trp) (4), and cyclo(N-MeL-Trp-N-MeL-Trp) (5), were isolated from the culture of the genetically engineered strain HGF052::asm18 deriv...
journal_title:Applied microbiology and biotechnology
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更新日期:2017-03-01 00:00:00
abstract::Extracellular polymeric substance (EPS) is proposed to facilitate calcium ion supersaturation through its nucleation effect during the microbially induced calcium carbonate precipitation (MICP) process. However, the supersaturation effect of Ca2+ via EPS in MICP has not been clearly demonstrated. Enhanced exopolysacch...
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abstract::The basidiomycetous yeast genus Pseudozyma produce large amounts of mannosylerythritol lipids (MELs), which are biosurfactants. A few Pseudozyma strains produce mono-acylated MEL as a minor compound using excess glucose as the sole carbon source. Mono-acylated MEL shows higher hydrophilicity than di-acylated MEL and h...
journal_title:Applied microbiology and biotechnology
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更新日期:2018-02-01 00:00:00
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abstract::Dramatic increase in bacterial resistance towards conventional antibiotics emphasises the importance to identify novel, more potent antimicrobial therapies. Antimicrobial peptides (AMPs) have emerged as a promising new group to be evaluated in therapeutic intervention of infectious diseases. Here we describe a novel A...
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abstract::A thermophilic Bacillus coagulans WCP10-4 with tolerance to high concentration of glucose was isolated from soil and used to produce optically pure L-lactic acid from glucose and starch. In batch fermentation at pH 6.0, 240 g/L of glucose was completely consumed giving 210 g/L of L-lactic acid with a yield of 95 % and...
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abstract::The principal point of this paper is that the discovery of penicillin and the development of the supporting technologies in microbiology and chemical engineering leading to its commercial scale production represent it as the medicine with the greatest impact on therapeutic outcomes. Our nomination of penicillin for th...
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pub_type: 历史文章,杂志文章,评审
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abstract::When sucrose was used as the carbon source, the Basidiomycete Coprinopsis cinerea showed poor growth and low laccase activity in pure culture, but greatly enhanced the level of laccase activity (>1800 U/L) during coculture with the Mucoromycete Gongronella sp. w5. As a result, the mechanism of laccase overproduction i...
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abstract::Bacterial cells are known to adapt to challenging environmental conditions such as osmotic stress. However, most of the work done in this field describes the adaptation of growing populations where the new generations acquire traits that improve their ability to survive. In the present study, the responses of Rhodococ...
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doi:10.1007/s00253-005-0103-x
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