DICP OpenIR
Subject Area生物工程
Biochemical Route to Biodiesel Using Lignocelluloses
Zhao ZB(赵宗保)
Source PublicationBITs 1st Annual World Congress of Bioenergy-2011
Conference NameBITs 1st Annual World Congress of Bioenergy-2011
Conference Date2011-4-25
2011
Conference Place大连
Pages309-0
Publisher待补充
Publication Place待补充
Cooperation Status分会口头报告
Department1816
Funding Organization中国外国专家局信息中心
AbstractSome 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.
Language英语
Document Type会议论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/116036
Collection中国科学院大连化学物理研究所
Corresponding AuthorZhao ZB(赵宗保)
Recommended Citation
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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