期刊
BIORESOURCE TECHNOLOGY
卷 146, 期 -, 页码 192-199出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2013.07.048
关键词
Microalgae; Diversity; Cultivation; Oil accumulation; Algal biodiesel
资金
- Shenzhen Development and Reform Commission Grant [[2011] 835]
This article presents a study on identification, cultivation and characterisation of microalgal strains from the coastal waters of the Pearl River Delta in Guangdong, China. Thirty-seven identified strains belong to the families: Chlorellaceae, Scotiellocystoidaceae, Scenedesmaceae,Selenastraceae,Micractiniaceae, Coccomyxaceae, Trebouxiaceae and Chlorococcaceae. Of isolated strains, Hindakia PKUAC 169 was selected for lipid induction using two methods: nitrogen starvation and salt stress. After derivatisation of algal lipids through in situ transesterification, lipid profiles of the alga under the two methods were analysed. The results have shown that both lipid yield and fatty acid profiles vary with the methods. Of the two tested methods of inducing lipid production, salt stress yielded three-fold higher lipid productivity than nitrogen starvation. The lipids are predominantly composed of C14-C18 fatty acids, which are favourable for biodiesel production. Moreover, the content of polyunsaturated fatty acids was below the limit of 12% set by EN14214 biodiesel standard. (c) 2013 Elsevier Ltd. All rights reserved.
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