 Magnetic cross-linked enzyme aggregates of Km12 lipase: A stable nanobiocatalyst for biodiesel synthesis from waste cooking oilArastoo Badoei-dalfard, Saeid Malekabadi, Zahra Karami and Ghasem Sargazi Renewable Energy, 2019, vol. 141, issue C, 874-882 Abstract: Enzymatic production of biodiesel from waste cooking oils (WCOs) is expected as an efficient procedure for resolving the problems of energy demand and environment pollutions. But, high cost of lipases has been found as a main obstacle to commercialize the enzymatic transesterification. In the present study, cross-linked enzyme aggregates of Km12 lipases have been coupled with amino coated magnetite nanoparticles. SEM analysis showed that mCLEAs-lipase (mCLEAs-lip) nanocomposites have spherical structures. The mCLEAs-lip displayed a shift in optimal pH towards the alkaline, whereas optimal temperature was also shift towards low temperature. mCLEAs-lip nanocomposite reserves its total activity up to 6 cycles of enzyme re-using. Furthermore, it reserves 60% of its initial activity more than free enzyme after 24 days of incubation at 4 °C. Biodiesel production from waste cooking oils by immobilized enzyme increased about 20% more than free enzyme. Therefore, the present study displays great practical latent to produce renewable fuel such as biodiesel. Keywords: mCLEAs; Lipase; Biodiesel; Waste cooking oil; Renewable fuel (search for similar items in EconPapers) Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:141:y:2019:i:c:p:874-882 DOI: 10.1016/j.renene.2019.04.061 Access Statistics for this article Renewable Energy is currently edited by Soteris A. Kalogirou and Paul Christodoulides More articles in Renewable Energy from Elsevier |
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