期刊
BIORESOURCE TECHNOLOGY
卷 201, 期 -, 页码 80-88出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2015.11.038
关键词
Microalgae; Kelp waste extracts; Lipid accumulation; Biomass productivity; Biodiesel
资金
- Hi-Tech Research and Development Program of China [2012AA021706]
- Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization
- Co-Innovation Center for Jiangsu Marine Bio-Industry Technology
- National Natural Science Foundation of China [31500318]
- China Postdoctoral Science Foundation Funded Project [2015M571764, 2014M561661]
Kelp waste extracts (KWE) contained massive soluble sugars, amino acids and various mineral elements. To probe the effects of KWE on microalgal physiological and biochemical responses, the cultures were carried out under the different dilutions. The results showed that 8.0% KWE increased the biomass productivities and total lipid contents of Chlorella strains dramatically, which were 1.83-31.86 times and 20.78-25.91% higher than that of the control. Phaeodactylum tricornutum and Spirulina maxima presented a better growth performance in 1.0% and 4.0% treatment respectively, while their lipid accumulation were not enhanced. In Chlorella-Arc, Chlorella sorokiniana and P. tricornutum, the contents of saturated and monounsaturated fatty acids could be increased, and polyunsaturated fatty acids could be decreased under the conditions of high concentration of KWE (6.0-8.0%). Briefly, KWE facilitated to enhance the biomass productivity and lipid content of Chlorella strains, also improved the fatty acid compositions for biodiesel production. (C) 2015 Elsevier Ltd. All rights reserved.
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