Biodiesel production from waste cooking oil by immobilized lipase on superparamagnetic Fe3O4 hollow sub-microspheres. Issue 6 (1st November 2016)

• Record Type: Journal Article
• Authors: Liu, Changxia; Yuan, Jinlei; Gao, Huafeng; Liu, Chunqiao
• Is Part Of: Biocatalysis and biotransformation. Volume 34:Issue 6(2016)
• Page Start: 283
• Page End: 290
• Publication Date: 2016-11-01
• Subjects: Biodiesel -- Fe3O4 hollow sub-microspheres -- immobilized lipase -- reusability -- waste cooking oil; Enzymes -- Biotechnology -- Periodicals; Enzymes -- Industrial applications -- Periodicals; Biotransformation (Metabolism) -- Periodicals; 660.63
• DOI: 10.1080/10242422.2016.1265948
• Languages: English
• ISSNs: 1024-2422

Abstract

Abstract: Superparamagnetic Fe3 O4 hollow sub-microspheres (FHSM) with strong response to an external magnet were prepared via a solvothermal method, followed by acid etching. Lipase from Candida sp. 99–125 was directly immobilized onto the amino-functional FHSM by simple adsorption, without glutaraldehyde linkage. The immobilized lipase was used to catalyze the esterification/transesterification of waste cooking oil with methanol to produce fatty acid methyl ester (FAME), a major source of biodiesel. FAME yield exceeded 93.4% over a wide range of temperatures from 10 to 40 °C. Notably, stability was clearly improved at the lower temperatures, in particular, giving a FAME yield of 89.6% after eight cycles of use at 10 °C.