RRC ID 29449
Author Lorliam W, Akaracharanya A, Suzuki M, Ohkuma M, Tanasupawat S.
Title Diversity and fermentation products of xylose-utilizing yeasts isolated from buffalo feces in Thailand.
Journal Microbes Environ.
Abstract Twenty-eight xylose-utilizing yeast strains were isolated by enrichment culture from 11 samples of feces from the rectum of Murrah buffalo and Swamp buffalo in Thailand. On the basis of their morphological and biochemical characteristics, including sequence analysis of the D1/D2 region of the large-subunit ribosomal RNA gene (LSU rDNA), they were identified as Candida tropicalis (designated as Group I, 11 isolates), Candida parasilosis (Group II, 2 isolates), Candida mengyuniae (Group III, 2 isolates), Sporopachydermia lactativora (Group IV, 2 isolates), Geotrichum sp. (Group V, 5 isolates) and Trichosporon asahii (Group VI, 6 isolates). All isolates utilized xylose as the sole carbon source but 27 isolates could ferment xylose to ethanol (0.006-0.602 g L(-1)) and 21 isolates could ferment xylose to xylitol (0.19-22.84 g L(-1)). Candida tropicalis isolates produced the highest yield of xylitol (74.80%). Their ability to convert xylose to xylitol and ethanol ranged from 15.06 g L(-1) to 22.84 g L(-1) xylitol and 0.110 g L(-1) to 0.602 g L(-1) ethanol, respectively.
Volume 28(3)
Pages 354-60
Published 2013
PMID 24005843
PMC PMC4070966
MeSH Animals Biodiversity* Buffaloes Feces / microbiology* Fermentation Molecular Sequence Data Phylogeny Thailand Xylitol / metabolism Xylose / metabolism* Yeasts / classification Yeasts / genetics Yeasts / isolation & purification* Yeasts / metabolism
IF 2.476
Times Cited 1
General Microbes JCM 10742