News Column

Researchers at Tongji University Describe Findings in Microbiology and Biotechnology

May 28, 2014

By a News Reporter-Staff News Editor at Biotech Week -- Investigators publish new report on Biotechnology. According to news reporting originating in Shanghai, People's Republic of China, by NewsRx journalists, research stated, "Microbial community shifts, associated with performance data, were investigated in an anaerobic batch digester treating high-solid food waste under mesophilic conditions using, a combination of molecular techniques and chemical analysis methods. The batch process was successfully operated with an organic removal efficiency of 44.5% associated with a biogas yield of 0.82 L/g VSremoval."

The news reporters obtained a quote from the research from Tongji University, "Microbial community structures were examined by denaturing gel gradient electrophoresis. Clostridium and Symbiobacterium organisms were suggested to be mainly responsible for the organic matter catabolism in hydrolysis and acidogenesis reactions. The dynamics of archaeal and methanogenic populations were monitored using real-time PCR targeting 16S rRNA genes. Methanosarcina was the predominant methanogen, suggesting that the methanogenesis took place mainly via an aceticlastic pathway. Hydrogenotrophic methanogens were also supported in high-solid anaerobic digestion of food waste through syntrophism with syntrophic bacterium. Microbial community shifts showed good agreement with the performance parameters in anaerobic digestion, implying the possibility of diagnosing a high-solid anaerobic digestion process by monitoring microbial community shifts."

According to the news reporters, the research concluded: "On the other hand, the batch results could be relevant to the start-up period of a continuous system and could also provide useful information to set up a continuous operation."

For more information on this research see: Microbial community dynamics in batch high-solid anaerobic digestion of food waste under mesophilic conditions. Journal of Microbiology and Biotechnology, 2014;24(2):270-9 (see also Biotechnology).

Our news correspondents report that additional information may be obtained by contacting J. Yi, National Engineering Research Center for Urban Pollution Control, School of Environmental Science and Engineering, Tongji University, Shanghai 200092, People's Republic of China. Additional authors for this research include B. Dong, Y. Xue, N. Li, P. Gao, Y. Zhao, L. Dai and X. Dai.

Keywords for this news article include: Asia, Biotechnology, Shanghai, People's Republic of China.

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC

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Source: Biotech Week

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