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|Title:||Production of biodiesel from cyanobacteria (Oscillatoria annae) by alkali and enzyme mediated transesterification|
Response surface methodology
|Abstract:||This study presents lipids from Oscillatoria annae BDU6, a freshwater cyanobacterium, to generate biodiesel. Efficient oil extraction from O. annae was achieved by ultrasonication in combination with organic solvents (50.9%) than homogenization (40.4%). Efficient conversion of triglycerides of O. annae into biodiesel was obtained by alkali mediated transesterification (86% w/v) when compared with lipase-mediated transesterification (76.5% w/v). RSM and CCRD were employed to optimize the growth medium to improve biomass of O. annae, which resulted in 3.2-fold increase in biomass yield (5.3 g-l dry wt/g of inoculum) compared to initial level (1.6 g-l dry wt/g of inoculum).|
|ISSN:||0975-1084 (Online); 0022-4456 (Print)|
|Appears in Collections:||JSIR Vol.70(11) [November 2011]|
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