Kinetics of n-butyl benzyl phthalate degradation by a pure bacterial culture from the mangrove sediment

2007 ◽  
Vol 140 (1-2) ◽  
pp. 194-199 ◽  
Author(s):  
Xiang-Rong Xu ◽  
Hua-Bin Li ◽  
Ji-Dong Gu ◽  
Xiao-Yan Li
Keyword(s):  
Bacterial Culture ◽  
Mangrove Sediment ◽  
Butyl Benzyl Phthalate ◽  
Pure Bacterial Culture ◽  
Kinetics Of

Rise and Fall of Bacterial Populations in Fish Muscle

1943 ◽  
Vol 6b (2) ◽  
pp. 119-128 ◽  
Author(s):  
H. L. A. Tarr
Keyword(s):  
Bacterial Culture ◽  
Bacterial Count ◽  
Fish Muscle ◽  
Growth Phases ◽  
Bacterial Populations ◽  
Count Method ◽  
Pure Bacterial Culture ◽  
Direct Counts

A direct bacterial count method applicable to fish muscle containing over approximately 1 × 105 bacteria per gram, with a modification employing preliminary incubation for muscle containing fewer bacteria, is described. Direct counts generally yielded similar and somewhat higher results than viable counts. Mixed bacterial populations of fish muscle generally exhibited the growth phases characteristic of a pure bacterial culture. There was absolutely no relation between direct (or viable) counts obtained subsequent to such incubation and the initial viable counts of the samples studied. Bacteria increased much more rapidly in excised fish muscle than in whole fish, and somewhat more rapidly in halibut than in salmon flesh.

scholarly journals Biodegradation of Methyl tert-Butyl Ether by a Pure Bacterial Culture

2001 ◽  
Vol 67 (12) ◽  
pp. 5601-5607 ◽  
Author(s):  
Paul B. Hatzinger ◽  
Kevin McClay ◽  
Simon Vainberg ◽  
Marina Tugusheva ◽  
Charles W. Condee ◽  
...  
Keyword(s):  
Bacterial Culture ◽  
Butyl Alcohol ◽  
The Other ◽  
Methyl Tert Butyl Ether ◽  
Butyl Ether ◽  
Pure Bacterial Culture ◽  
Degradation Activity ◽  
Type Strains ◽  
Mtbe Degradation ◽  
Allyl Thiourea

ABSTRACT Biodegradation of methyl tert-butyl ether (MTBE) by the hydrogen-oxidizing bacterium Hydrogenophaga flavaENV735 was evaluated. ENV735 grew slowly on MTBE ortert-butyl alcohol (TBA) as sole sources of carbon and energy, but growth on these substrates was greatly enhanced by the addition of a small amount of yeast extract. The addition of H2 did not enhance or diminish MTBE degradation by the strain, and MTBE was only poorly degraded or not degraded by type strains of Hydrogenophaga or hydrogen-oxidizing enrichment cultures, respectively. MTBE degradation activity was constitutively expressed in ENV735 and was not greatly affected by formaldehyde, carbon monoxide, allyl thiourea, or acetylene. MTBE degradation was inhibited by 1-amino benzotriazole and butadiene monoepoxide. TBA degradation was inducible by TBA and was inhibited by formaldehyde at concentrations of >0.24 mM and by acetylene but not by the other inhibitors tested. These results demonstrate that separate, independently regulated genes encode MTBE and TBA metabolism in ENV735.

Anaerobic benzene biodegradation by a pure bacterial culture of Bacillus cereus under nitrate reducing conditions

2010 ◽  
Vol 22 (5) ◽  
pp. 709-715 ◽  
Author(s):  
Junfeng Dou ◽  
Aizhong Ding ◽  
Xiang Liu ◽  
Yongchao Du ◽  
Dong Deng ◽  
...  
Keyword(s):  
Bacillus Cereus ◽  
Bacterial Culture ◽  
Reducing Conditions ◽  
Pure Bacterial Culture

Fermentative Biohydrogen Production by Mixed and Pure Bacterial Culture: Designing of Processes and Engineering Control

Solar Energy ◽  
2005 ◽  
Author(s):  
Yong-Feng Li ◽  
Nan-Qi Ren ◽  
Li-Jie Hu ◽  
Guo-Xiang Zheng ◽  
Maryam Zadsar
Keyword(s):  
Hydrogen Production ◽  
Continuous Culture ◽  
Bacterial Culture ◽  
Production Systems ◽  
Production Engineering ◽  
Schematic Processing ◽  
Engineering Control ◽  
Pure Bacterial Culture ◽  
Technical Issues ◽  
Fermentation Parameters

In this paper the research about applied bio-hydrogen production engineering is introduced. The advantages, disadvantages and characteristics of bio-hydrogen production systems and some technical issues on anaerobic fermentative bio-hydrogen producing systems will be discussed and focused on the schematic processing, designing strategies and engineering control of fermentation parameters and also the technical means to increase the evolved hydrogen and hydrogen evolution rate. The technology of bio-hydrogen production based on ethanol-type fermentative theory has been established. The mixed continuous culture and pure batch culture processes were proposed for hydrogen production.

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