title: Bioethanol production from the hydrolysate of rape stem in a surface-aerated fermentor.
abstract: In this study, we investigated the feasibility of producing bioethanol from the hydrolysate of rape stem. Specifically, the most ideal yeast strain was screened, and the microaeration was performed by surface aeration on a liquid medium surface. Among the yeast strains examined, Pichia stipitis CBS 7126 displayed the best performance in bioethanol production during the surface-aerated fermentor culture. Pichia stipitis CBS 7126 produced maximally 9.56 g/l of bioethanol from the initial total reducing sugars (about 28 g/l). The bioethanol yield was 0.397 (by the DNS method). Furthermore, this controlled surface aeration method holds promise for use in the bioethanol production from the xylose-containing lignocellulosic hydrolysate of biomass.
authors.affiliation: Department of Biotechnology, Chungju National University, Jeungpyung, Chungbuk 368-701, Korea.
authors.forename: Ji-Hyeon
authors.initials: JH
authors.lastname: Yeon
authors.forename: Sang-Eun
authors.initials: SE
authors.lastname: Lee
authors.forename: Woon Yong
authors.initials: WY
authors.lastname: Choi
authors.forename: Won-Seok
authors.initials: WS
authors.lastname: Choi
authors.forename: Il-Chul
authors.initials: IC
authors.lastname: Kim
authors.forename: Hyeon-Yong
authors.initials: HY
authors.lastname: Lee
authors.forename: Kyung-Hwan
authors.initials: KH
authors.lastname: Jung
mesh_terms: D029741:Brassica rapa / Q000378:metabolism / Q000382:microbiology*; D000431:Ethanol / Q000378:metabolism*; D005285:Fermentation; D006868:Hydrolysis; D007218:Industrial Microbiology / Q000295:instrumentation / Q000379:methods*; D010843:Pichia / Q000378:metabolism; D018547:Plant Stems / Q000378:metabolism / Q000382:microbiology; D015003:Yeasts / Q000378:metabolism*
chemical_list: D000431:Ethanol