Phototrophic cultivation of a thermo-tolerant Desmodesmus sp for lutein production: Effects of nitrate concentration, light intensity and fed-batch operation

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	Phototrophic cultivation of a thermo-tolerant Desmodesmus sp for lutein production: Effects of nitrate concentration, light intensity and fed-batch operation
	Xie, Youping ; Ho, Shih-Hsin ; Chen, Ching-Nen Nath ; Chen, Chun-Yen ; Ng, I-Son ; Jing, Ke-Ju ; Chang, Jo-S ; Lu, Yinghua ; Lu YH(卢英华)
刊名	http://dx.doi.org/10.1016/j.biortech.2013.06.064
	2013
关键词	Cell growth Growth kinetics Strain
英文摘要	Four indigenous thermo-tolerant Desmodesmus sp. strains were examined for their ability to produce lutein. Among them, Desmodesmus sp. F51 was the best strain for this purpose. The medium composition, nitrate concentration and light intensity were manipulated to improve the phototrophic growth and lutein production of Desmodesmus sp. F51. It was found that a nitrogen-sufficient condition was required for lutein accumulation, while a high light intensity enhanced cell growth but caused a decrease in the lutein content. The best cell growth and lutein production occurred when the light intensity and initial nitrate concentration were 600μmol/m2/s and 8.8mM, respectively. The fed-batch cultivation strategy was shown to further improve lutein production. The highest lutein productivity (3.56±0.10mg/L/d) and content (5.05±0.20mg/g) were obtained when pulse-feeding of 2.2mM nitrate was employed. This study demonstrated the potential of using Desmodesmus sp. F51 as a lutein producer in practical applications. ? 2013 Elsevier Ltd.
语种	英语
出版者	Elsevier Ltd
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/89179]
专题	化学化工－已发表论文
推荐引用方式 GB/T 7714	Xie, Youping,Ho, Shih-Hsin,Chen, Ching-Nen Nath,et al. Phototrophic cultivation of a thermo-tolerant Desmodesmus sp for lutein production: Effects of nitrate concentration, light intensity and fed-batch operation[J]. http://dx.doi.org/10.1016/j.biortech.2013.06.064,2013.
APA	Xie, Youping.,Ho, Shih-Hsin.,Chen, Ching-Nen Nath.,Chen, Chun-Yen.,Ng, I-Son.,...&卢英华.(2013).Phototrophic cultivation of a thermo-tolerant Desmodesmus sp for lutein production: Effects of nitrate concentration, light intensity and fed-batch operation.http://dx.doi.org/10.1016/j.biortech.2013.06.064.
MLA	Xie, Youping,et al."Phototrophic cultivation of a thermo-tolerant Desmodesmus sp for lutein production: Effects of nitrate concentration, light intensity and fed-batch operation".http://dx.doi.org/10.1016/j.biortech.2013.06.064 (2013).