title: Use of elephant grass (Pennisetum purpureum) acid hydrolysate for microbial oil production by Trichosporon cutaneum.
abstract: Elephant grass (Pennisetum purpureum) dilute acid hydrolysate contains 34.6 g/L total sugars. The potential of lipid production by oleaginous yeast Trichosporon cutaneum grown on elephant grass acid hydrolysate was investigated for the first time. During the fermentation process on the elephant grass acid hydrolysate, glucose, xylose, and arabinose could be well utilized as carbon sources by T. cutaneum. Interestingly, xylose was almost no use before glucose was consumed completely. This illustrated that simultaneous saccharification of xylose and glucose by T. cutaneum did not occur on elephant grass acid hydrolysate. The highest biomass, lipid content, lipid yield, and lipid coefficient of T. cutaneum were measured after the sixth day of fermentation and were 22.76 g/L, 24.0%, 5.46 g/L, and 16.1%, respectively. Therefore, elephant grass is a promising raw material for microbial oil production by T. cutaneum.
authors.affiliation: a Key Laboratory of Renewable Energy , Chinese Academy of Sciences , Guangzhou , China.|b Guangzhou Institute of Energy Conversion , Chinese Academy of Sciences , Guangzhou , China.
authors.forename: Xue-Fang
authors.initials: XF
authors.lastname: Chen
authors.affiliation: a Key Laboratory of Renewable Energy , Chinese Academy of Sciences , Guangzhou , China.|b Guangzhou Institute of Energy Conversion , Chinese Academy of Sciences , Guangzhou , China.
authors.forename: Chao
authors.initials: C
authors.lastname: Huang
authors.affiliation: a Key Laboratory of Renewable Energy , Chinese Academy of Sciences , Guangzhou , China.|b Guangzhou Institute of Energy Conversion , Chinese Academy of Sciences , Guangzhou , China.
authors.forename: Lian
authors.initials: L
authors.lastname: Xiong
authors.affiliation: a Key Laboratory of Renewable Energy , Chinese Academy of Sciences , Guangzhou , China.|c School of Chemistry and Chemical Engineering , University of Chinese Academy of Sciences , Beijing , China.
authors.forename: Bo
authors.initials: B
authors.lastname: Wang
authors.affiliation: a Key Laboratory of Renewable Energy , Chinese Academy of Sciences , Guangzhou , China.|c School of Chemistry and Chemical Engineering , University of Chinese Academy of Sciences , Beijing , China.
authors.forename: Gao-Xiang
authors.initials: GX
authors.lastname: Qi
authors.affiliation: a Key Laboratory of Renewable Energy , Chinese Academy of Sciences , Guangzhou , China.|b Guangzhou Institute of Energy Conversion , Chinese Academy of Sciences , Guangzhou , China.
authors.forename: Xiao-Qing
authors.initials: XQ
authors.lastname: Lin
authors.affiliation: a Key Laboratory of Renewable Energy , Chinese Academy of Sciences , Guangzhou , China.|b Guangzhou Institute of Energy Conversion , Chinese Academy of Sciences , Guangzhou , China.
authors.forename: Can
authors.initials: C
authors.lastname: Wang
authors.affiliation: a Key Laboratory of Renewable Energy , Chinese Academy of Sciences , Guangzhou , China.|b Guangzhou Institute of Energy Conversion , Chinese Academy of Sciences , Guangzhou , China.
authors.forename: Xin-De
authors.initials: XD
authors.lastname: Chen
mesh_terms: D000143:Acids / Q000378:metabolism*; D018533:Biomass; D006868:Hydrolysis; D031782:Pennisetum / Q000378:metabolism*; D010938:Plant Oils / Q000378:metabolism*; D014250:Trichosporon / Q000378:metabolism*
chemical_list: D000143:Acids; D010938:Plant Oils
keywords: Elephant grass (Pennisetum purpureum); Trichosporon cutaneum biodiesel; Trichosporon cutaneum microbial oil production; elephant grass dilute acid hydrolysate