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学科主题生物工程
Biochemical Route to Biodiesel Using Lignocelluloses
Zhao ZB(赵宗保)
会议文集BITs 1st Annual World Congress of Bioenergy-2011
会议名称BITs 1st Annual World Congress of Bioenergy-2011
会议日期2011-4-25
2011
会议地点大连
页码309-0
出版者待补充
出版地待补充
合作性质分会口头报告
部门归属1816
主办者中国外国专家局信息中心
英文摘要Some microorganisms can accumulate intracellularly triacylglycerols with fatty acid compositional profile similar to those of the commercial vegetable oils when carbohydrates are fed. Thus, microbial lipid technology can be developed to produce biodiesel using lignocellulosic feedstock. During the past few years, we have worked on 1) Hydrolysis of lignocelluloses to carbohydrates; 2) Lipid production with oleaginous microorganisms; and 3) Transesterification of microbial lipid to biodiesel. We identified a hand of outstanding oleaginous yeasts, including Rhodosporidium toruloides, Lipomyres starkeyi, Cryptococcus curvatus, and Trichosporon cutaneum. These yeasts produced microbial lipid using materials including glucose, xylose, raw glycerol and biomass hydrolysates. We optimized lipid production processes. When using the yeast R. toruloides Y4 as the lipid producer, we achieved lipid content, production titer and lipid productivity of over 65 wt%, 100 g/L and 1.0 g/l/h, respectively. We also demonstrated that biodiesel can be produced using either oleaginous microbial biomass or microbial lipid as the feedstock. We have also developed novel strategy for lipid recovery directly from the fermentation broth without isolation of \"fatty\" cells, which significantly reduces the costs of microbial lipid technology. Taken together, we will report the most recent progresses in biochemical route to biodiesel using lignocelluloses in Dalian Institute of Chemical Physics, Chinese Academy of Sciences.; Some microorganisms can accumulate intracellularly triacylglycerols with fatty acid compositional profile similar to those of the commercial vegetable oils when carbohydrates are fed. Thus, microbial lipid technology can be developed to produce biodiesel using lignocellulosic feedstock. During the past few years, we have worked on 1) Hydrolysis of lignocelluloses to carbohydrates; 2) Lipid production with oleaginous microorganisms; and 3) Transesterification of microbial lipid to biodiesel. We identified a hand of outstanding oleaginous yeasts, including Rhodosporidium toruloides, Lipomyres starkeyi, Cryptococcus curvatus, and Trichosporon cutaneum. These yeasts produced microbial lipid using materials including glucose, xylose, raw glycerol and biomass hydrolysates. We optimized lipid production processes. When using the yeast R. toruloides Y4 as the lipid producer, we achieved lipid content, production titer and lipid productivity of over 65 wt%, 100 g/L and 1.0 g/l/h, respectively. We also demonstrated that biodiesel can be produced using either oleaginous microbial biomass or microbial lipid as the feedstock. We have also developed novel strategy for lipid recovery directly from the fermentation broth without isolation of \"fatty\" cells, which significantly reduces the costs of microbial lipid technology. Taken together, we will report the most recent progresses in biochemical route to biodiesel using lignocelluloses in Dalian Institute of Chemical Physics, Chinese Academy of Sciences.
语种英语
文献类型会议论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/116036
专题中国科学院大连化学物理研究所
通讯作者Zhao ZB(赵宗保)
推荐引用方式
GB/T 7714
Zhao ZB. Biochemical Route to Biodiesel Using Lignocelluloses[C]. 待补充:待补充,2011:309-0.
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