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	Effects of biomass hydrolysis by-products on oleaginous yeast Rhodosporidium toruloides
	Hu CM(胡翠敏) ; Zhao ZB(赵宗保)
	2008-10-12
会议名称	13th international biotechnology symposium and exhibition
会议日期	2008-10-12
会议地点	中国
页码	s363/2
通讯作者	赵宗保
中文摘要	feedstock supply presents the major hurdle for large-volume biodiesel industry, because triacylglycerides (tag) productivity by oil plants is quite limited. it is pivotal to develop non-conventional tag production method. lipid fermentation using oleaginous microorganisms can be an alternative, as these microbes are able to assimilate carbohydrates derived from lignocellulosic biomass [1]. for example, rhodosporidium toruloides y4 were found to accumulate large quantity of intracellular lipids with very high cell density [2]. moreover, microbial lipids closely resemble vegetable oils in that they are composed of c16 and c18 series long-chain fatty acids [3]. however, biomass hydrolysis produces monosaccharides along with toxic by-products [4]. this work investigated the effects of these inhibitors on lipid fermentation by r. toruloides y4. our data showed that acetic acid, hydroxylmethylfurfural and syringaldehyde had slightly inhibitory effects; vanillin and p-hydroxybenzaldehyde were toxic at concentration over 10 and 12 mm, respectively; and that furfural gave the most toxic effect. cell growth was inhibited by about 50% in the presence of 1 mm furfural. furthermore, furfuryl alcohol and furoic acid showed similar inhibitory effects. compositional analysis confirmed that the majority were c16 and c18 series long-chain fatty acids, suggesting that those inhibitors had little effects on the biosynthetic pathways for lipids.
会议主办者	中国科学院,中国工程院,中国教育部,中国科技部
学科主题	物理化学
语种	中文
ISSN号	0168-1656
内容类型	会议论文
源URL	[http://159.226.238.44/handle/321008/113178]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
推荐引用方式 GB/T 7714	Hu CM,Zhao ZB. Effects of biomass hydrolysis by-products on oleaginous yeast Rhodosporidium toruloides[C]. 见:13th international biotechnology symposium and exhibition. 中国. 2008-10-12.

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