Lipid extractions from docosahexaenoic acid (DHA)-rich and oleaginous Chlorella sp biomasses by organic-nanoclays

Title
Lipid extractions from docosahexaenoic acid (DHA)-rich and oleaginous Chlorella sp biomasses by organic-nanoclays
Authors
허윤석
Keywords
Organic-nanoclays Microalgae Chlorella sp. Lipid extraction Biodiesel
Issue Date
2013
Publisher
BIORESOURCE TECHNOLOGY
Series/Report no.
BIORESOURCE TECHNOLOGY; vol.137 startpage 74 endpage 81
Abstract
Microalgae biorefinement has attracted in intensive academic and industrial interest worldwide for its potential to replace petrol biofuels as economically and environmentally advantageous alternatives. However, harvesting and lipid extraction remain as critical and difficult issues to be resolved. In the present study, four amino-gr oups functionalized organic-nano clays were prepared. Specifically, Mg or Al or Ca backboned and covalently linked with 3-aminopropyltriethoxysilane or 3-[2-(2-aminoethylamino) ethylamino]propyltrimethoxysilane by sol?gel reaction under ambient condit ions, resulted in Mg? APTES clay, Al?APTES clay, Ca?APTES clay, and Mg?N3 clay, respectively. Each organic-nanoclay was utilized for lipid extractio n from wet microalgae biomass. As a result, the lipid-extraction efficiency of paste docosah exaenoic acid (DHA)-rich Chlorella sp. with low lipid content was high, while one of paste oleaginous Chlorella sp. with high lipid content was relatively low. Despite the low lipid-ext raction efficiencies in all of the wet microalgae biomass, the convers ion of the extr acted lipids’ fatty acids to biodiesel was nearly 100%.
URI
http://dspace.inha.ac.kr/handle/10505/32610
ISSN
0960-8524
Appears in Collections:
College of Engineering(공과대학) > Biotechnology (생명공학) > Journal Papers, Reports(생명공학 논문, 보고서)
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