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|Title:||Biodiesel synthesis from microalgae using immobilized Aspergillus niger whole cell lipase biocatalyst||Authors:||Guldhe, Abhishek
Kumari, Sheena K.
|Keywords:||Whole cell lipase;Microalgae;Scenedesmus obliquus;Biodiesel;Aspergillus niger||Issue Date:||2016||Publisher:||Elsevier||Source:||Guldhe, A. et al. 2016. Biodiesel synthesis from microalgae using immobilized Aspergillus niger whole cell lipase biocatalyst. Renewable Energy. 85: 1002-1010.||Journal:||Renewable energy (Online)||Abstract:||Whole cell lipase catalysis and microalgal feedstocks make overall biodiesel synthesis greener and sustainable. In this study, a novel approach of whole cell lipase-catalyzed conversion of Scenedesmus obliquus lipids was investigated for biodiesel synthesis. Microalgal biodiesel was characterized for its fuel properties. Optimization of process parameters for immobilized Aspergillus niger whole cell lipase-catalyzed biodiesel synthesis was carried out. Highest biodiesel conversion of 53.76% was achieved from S. obliquus lipids at 35 °C, methanol to oil ratio of 5:1 and 2.5% water content based on oil weight with 6 BSPs (Biomass support particles). Step-wise methanol addition was applied to account for methanol tolerance, which improved biodiesel conversion upto 80.97% and gave 90.82 ± 1.43% yield. Immobilized A. niger lipase can be used for 2 batches without signiﬁcant loss in conversion efﬁciency. Most of the fuel properties of biodiesel met the speciﬁcations set by international standards.||URI:||http://hdl.handle.net/10321/2243||ISSN:||0960-1481 (print)
|Appears in Collections:||Research Publications (Applied Sciences)|
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