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Mar. Drugs 2014, 12(3), 1258-1270; doi:10.3390/md12031258

A Novel Lipid Extraction Method from Wet Microalga Picochlorum sp. at Room Temperature

1
Key Laboratory of Tropical Marine Bio-resources and Ecology, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
2
Graduate School of Chinese Acedemy of Sciences, Beijing 100049, China
*
Author to whom correspondence should be addressed.
Received: 9 December 2013 / Revised: 31 January 2014 / Accepted: 7 February 2014 / Published: 6 March 2014
(This article belongs to the Special Issue Advances and New Perspectives in Marine Biotechnology)
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Abstract

A novel method using ethanol was proposed for extracting lipids from wet microalga Picochlorum sp. at room temperature and pressure. In this study, Central Composite design (CCD) was applied to investigate the optimum conditions of lipid extraction. The results revealed that the solvent to biomass ratio had the largest effect on lipid extraction efficiency, followed by extraction time and temperature. A high lipid extraction yield (33.04% of the dry weight) was obtained under the following extraction conditions: 5 mL solvents per gram of wet biomass for 37 min with gentle stirring at room temperature. The extraction yield was comparable to that obtained by the widely used Bligh-Dyer method. Furthermore, no significant differences in the distribution of lipid classes and fatty acid composition were observed according to different extraction methods. In conclusion, these results indicated that the proposed procedure using ethanol could extract lipids from wet biomass efficiently and had giant potential for lipid extraction at large scale. View Full-Text
Keywords: lipid extraction; wet microalga; biofuel; ethanol; Picochlorum sp. lipid extraction; wet microalga; biofuel; ethanol; Picochlorum sp.
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Yang, F.; Xiang, W.; Sun, X.; Wu, H.; Li, T.; Long, L. A Novel Lipid Extraction Method from Wet Microalga Picochlorum sp. at Room Temperature. Mar. Drugs 2014, 12, 1258-1270.

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