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Analysis of immobilized Candida rugosa lipase catalyzed preparation of biodiesel from rapeseed soapstock

Paper ID Volume ID Publish Year Pages File Format Full-Text
19354 43061 2008 7 PDF Available
Title
Analysis of immobilized Candida rugosa lipase catalyzed preparation of biodiesel from rapeseed soapstock
Abstract

Refined vegetable oils are the predominant feedstocks for the production of biodiesel. However, their relatively high costs render the resulting fuels unable to compete with petroleum-derived fuel. Response surface methodology (RSM) analysis of immobilized Candida rugosa lipase (CRL) on chitosan catalyzed preparation of biodiesel from rapeseed soapstock with methanol was carried out. Methanol substrate molar ratio, enzyme amount, water content and reaction temperature were four important parameters employed. RSM analysis showed good correspondence between experimental and predicted values. It was found that the most effective parameter was water content, which was in good agreement with the experimental value. The coefficient of determination (R2) for the model was 92.86%. Probability value (P < 0.0001) demonstrated a very high significance for the regression model. Methyl conversion of 63.6% was obtained when optimum conditions of immobilized lipase catalyzed for biodiesel production were methanol substrate molar ratio of 4:1, enzyme amount of 8%, water content of 6% and reaction temperature of 45 °C. Methyl ester content was above 95% after molecular distillation process.

Keywords
Rapeseed soapstock; Response surface methodology; Biodiesel; Immobilized lipase
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Analysis of immobilized Candida rugosa lipase catalyzed preparation of biodiesel from rapeseed soapstock
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Publisher
Database: Elsevier - ScienceDirect
Journal: Food and Bioproducts Processing - Volume 86, Issue 4, December 2008, Pages 283–289
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