%T A novel lipids recovery strategy for biofuels generation on microalgae Chlorella cultivation with waste molasses
%A G.Y. Yew
%A K.S. Khoo
%A W.Y. Chia
%A Y.-C. Ho
%A C.L. Law
%A H.Y. Leong
%A P.L. Show
%I Elsevier Ltd
%V 38
%X This study demonstrated a novel approach of lipids extraction with simultaneous biofuels conversion on microalgae Chlorella sorokiniana CY-1 cultivation using waste molasses as culture medium. The lipid extraction process was based on a hybrid liquid biphasic system (HLBS) which comprises of disruptive and extractive solvents in a single system. The microalgae cultivation with waste molasses showed a reduction in the chemical oxygen demand (COD), total suspended solid (TSS) and nitrate content on the waste medium (61.48 , 63.94  and 63.79 , respectively). Additionally, a prompt lipids extraction with a recovery of 92.84  and a cell disruption enhancement of 8.3-fold in the organic solvent phase was attained. The acid-treated C. sorokiniana CY-1 biomass showed a composition of carbon at 61.3 , oxygen at 33.2 , nitrogen at 5.5  and potassium at 0.12 . Sulphur content was not detected in the microalgae biomass and this had aided the production of fatty acids methyl ester (FAME) which was observed by a gas chromatographic-flame ionisation detector (GC-FID) profile. A disruptive-extraction method using acid assisted phase on HLBS showed potential for direct conversion of lipids into FAME to produce biofuels for engine combustion. © 2020 Elsevier Ltd
%O cited By 32
%L scholars12417
%J Journal of Water Process Engineering
%D 2020
%R 10.1016/j.jwpe.2020.101665