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Highly efficient transformation of waste oil to biodiesel by immobilized lipase from Penicillium expansum

Paper ID Volume ID Publish Year Pages File Format Full-Text
35171 45079 2009 4 PDF Available
Title
Highly efficient transformation of waste oil to biodiesel by immobilized lipase from Penicillium expansum
Abstract

An inexpensive self-made immobilized lipase from Penicillium expansum was shown to be an efficient biocatalyst for biodiesel production from waste oil with high acid value in organic solvent. It was revealed that water from the esterification of free fatty acids and methanol prohibited a high methyl ester yield. Adsorbents could effectively control the concentration of water in the reaction system, resulting in an improved methyl ester yield. Silica gel was proved to be the optimal adsorbent, affording a ME yield of 92.8% after 7 h. Moreover, the enzyme preparation displayed a higher stability in waste oil than in corn oil, with 68.4% of the original enzymatic activity retained after being reused for 10 batches.

Keywords
Biodiesel; Waste oil; High acid value; Immobilized lipase; Penicillium expansum; Adsorbent
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Highly efficient transformation of waste oil to biodiesel by immobilized lipase from Penicillium expansum
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Publisher
Database: Elsevier - ScienceDirect
Journal: Process Biochemistry - Volume 44, Issue 6, June 2009, Pages 685–688
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us