NDLI: Microwave radiation and reactor design influence microbial communities during methane fermentation

Content Provider	Springer Nature Link
Author	Cydzik Kwiatkowska, Agnieszka Zieliński, Marcin Jarawska, Paulina
Copyright Year	2012
Abstract	The effect of reactor design and method of heating on the efficiency of methane fermentation and composition of microbial communities, especially methanogenic Archaea, were determined. The research was carried out using submerge- and trickling-bed reactors fed with wastewater and the heat supply into the reactors included a convection heating method and microwave radiation. The polymerase chain reaction-denaturing gradient gel electrophoresis and relative real-time PCR were used in order to assess the biofilm communities. The best fermentation results and the highest abundance of methanogenic Archaea in biomass were observed in microwave heated trickling-bed reactors. The research proved that in reactors of identical design, the application of microwaves enabled a higher fermentation efficiency to be obtained and simultaneously increased the diversity of methanogenic Archaea communities that favors process stability. All the identified sequences of Archaea belonged to Methanosarcina sp., suggesting that species from this genera are susceptible to non-thermal effects of microwaves. There were no effects from microwaves on the bacterial communities in both types of reactors, however, the bacterial species composition varied in the reactors of different design.
Starting Page	1397
Ending Page	1405
Page Count	9
File Format	PDF
ISSN	13675435
Journal	Journal of Industrial Microbiology and Biotechnology
Volume Number	39
Issue Number	9
e-ISSN	14765535
Language	English
Publisher	Springer-Verlag
Publisher Date	2012-05-22
Publisher Place	Berlin, Heidelberg
Access Restriction	Subscribed
Subject Keyword	Microwave radiation Methanogenic Archaea diversity Methanosarcina sp. Inorganic Chemistry Biochemistry Bioinformatics Genetic Engineering Microbiology Biotechnology
Content Type	Text
Resource Type	Article
Subject	Medicine Bioengineering Applied Microbiology and Biotechnology Biotechnology

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