title: Microbial community in methanogenic packed-bed reactor successfully operating at short hydraulic retention time.
abstract: The microbial community in a thermophilic anaerobic packed-bed reactor, which had been successfully operated to convert acetic and butyric acids to methane at a short hydraulic retention time (from 24 h to 1.9 h), was investigated. Archaea closely related to known methanogens were detected by 16S rRNA gene analyses of the effluents, together with diverse types of unidentified bacteria.
authors.affiliation: Department of Biotechnology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan.
authors.forename: Kengo
authors.initials: K
authors.lastname: Sasaki
authors.forename: Shin
authors.initials: S
authors.lastname: Haruta
authors.forename: Masahiro
authors.initials: M
authors.lastname: Tatara
authors.forename: Akira
authors.initials: A
authors.lastname: Yamazawa
authors.forename: Yoshiyuki
authors.initials: Y
authors.lastname: Ueno
authors.forename: Masaharu
authors.initials: M
authors.lastname: Ishii
authors.forename: Yasuo
authors.initials: Y
authors.lastname: Igarashi
mesh_terms: D000085:Acetates / Q000737:chemistry; D001105:Archaea / Q000378:metabolism; D018533:Biomass; D019149:Bioreactors; D001709:Biotechnology / Q000379:methods*; D002087:Butyrates / Q000737:chemistry; D005227:Fatty Acids / Q000737:chemistry; D005285:Fermentation; D006863:Hydrogen-Ion Concentration; D008697:Methane / Q000737:chemistry; D010802:Phylogeny; D012336:RNA, Ribosomal, 16S / Q000737:chemistry; D013997:Time Factors
chemical_list: D000085:Acetates; D002087:Butyrates; D005227:Fatty Acids; D012336:RNA, Ribosomal, 16S; D008697:Methane