title: Bioethanol production from Lignocellulosic biomass by a novel Kluyveromyces marxianus strain.
abstract: The yeast Kluyveromyces marxianus is considered as a potential alternative to Saccharomyces cerevisiae in producing ethanol as a biofuel. In this study, we investigated the ethanol fermentation properties of novel K. marxianus strain DMB1, isolated from bagasse hydrolysates. This strain utilized sorbitol as well as various pentoses and hexoses as single carbon sources under aerobic conditions and produced ethanol from glucose in hydrolysates of the Japanese cedar at 42 °C. Reference strains K. marxianus NBRC1777 and S. cerevisiae BY4743 did not assimilate sorbitol or ferment lignocellulosic hydrolysates to ethanol at this temperature. Thus strain DMB1 appears to be optimal for producing bioethanol at high temperatures, and might provide a valuable means of increasing the efficiency of ethanol fermentation.
authors.affiliation: Biomass Refinery Research Center, National Institute of Advanced Industrial Science and Technology, Higashi-hiroshima, Hiroshima 739-0046, Japan.
authors.forename: Tetsuya
authors.initials: T
authors.lastname: Goshima
authors.forename: Masaharu
authors.initials: M
authors.lastname: Tsuji
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Inoue
authors.forename: Shinichi
authors.initials: S
authors.lastname: Yano
authors.forename: Tamotsu
authors.initials: T
authors.lastname: Hoshino
authors.forename: Akinori
authors.initials: A
authors.lastname: Matsushika
mesh_terms: D056804:Biofuels / Q000382:microbiology*; D018533:Biomass; D002482:Cellulose / Q000378:metabolism; D032485:Cryptomeria / Q000737:chemistry; D000431:Ethanol / Q000378:metabolism*; D005285:Fermentation; D005947:Glucose / Q000378:metabolism; D006868:Hydrolysis; D007716:Kluyveromyces / Q000378:metabolism*; D008031:Lignin / Q000378:metabolism*; D013696:Temperature
chemical_list: D056804:Biofuels; C036909:lignocellulose; D000431:Ethanol; D002482:Cellulose; D008031:Lignin; C027433:bagasse; D005947:Glucose