title: Ethanol production from non-pretreated napiergrass through a simultaneous saccharification and fermentation process followed by a pentose fermentation with Escherichia coli KO11.
abstract: Efficient ethanol production from lignocellulosic napiergrass (Pennisetum purpureum Schumach) was examined by the combination of the simultaneous saccharification and fermentation (SSF) with commercial cellulase and Saccharomyces cerevisiae NBRC 2044 and subsequent pentose fermentation (PF) by Escherichia coli KO11. Under the optimized conditions, the combination of the SSF and PF processes resulted in the production of 144 mg g(-1) of ethanol from the non-pretreated napiergrass powder. The ethanol yield was 44.2% of the theoretical yield based on the hexose (37.5 g) and pentose (26.5 g) derived from 100 g of dry powdered napiergrass.
authors.affiliation: Department of Applied Chemistry, Faculty of Engineering, University of Miyazaki, 1-1 Gakuen-Kibanadai Nishi, Miyazaki, Japan. yasuda@cc.miyazaki-u.ac.jp
authors.forename: Masahide
authors.initials: M
authors.lastname: Yasuda
authors.forename: Akiteru
authors.initials: A
authors.lastname: Miura
authors.forename: Tsutomu
authors.initials: T
authors.lastname: Shiragami
authors.forename: Jin
authors.initials: J
authors.lastname: Matsumoto
authors.forename: Ichiro
authors.initials: I
authors.lastname: Kamei
authors.forename: Yasuyuki
authors.initials: Y
authors.lastname: Ishii
authors.forename: Kazuyoshi
authors.initials: K
authors.lastname: Ohta
mesh_terms: D000164:Acremonium / Q000201:enzymology; D002480:Cellulase / Q000378:metabolism; D004926:Escherichia coli / Q000378:metabolism*; D000431:Ethanol / Q000378:metabolism*; D005285:Fermentation; D006601:Hexoses / Q000378:metabolism; D031782:Pennisetum / Q000737:chemistry*; D010429:Pentoses / Q000378:metabolism*; D012441:Saccharomyces cerevisiae / Q000737:chemistry / Q000378:metabolism
chemical_list: D006601:Hexoses; D010429:Pentoses; D000431:Ethanol; D002480:Cellulase