Cocoa pod husk: A new source of CLEA-lipase for preparation of low-cost biodiesel: An optimized process

Khanahmadi S 1 , Yusof F 2 , Chyuan Ong H 3 , Amid A 2 , Shah H 2

Affiliations 

  • 1 Department of Biotechnology Engineering, Faculty of Engineering, International IslamicUniversity Malaysia, P.O. Box 10, 50728 Kuala Lumpur, Malaysia. Electronic address: Sophia.khan.ahmadi@gmail.com
  • 2 Department of Biotechnology Engineering, Faculty of Engineering, International IslamicUniversity Malaysia, P.O. Box 10, 50728 Kuala Lumpur, Malaysia
  • 3 Department of Mechanical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia. Electronic address: onghc@um.edu.my
J Biotechnol, 2016 Aug 10;231:95-105.
PMID: 27184429 DOI: 10.1016/j.jbiotec.2016.05.015

Abstract

Enzymatic reactions involving lipases as catalyst in transesterification can be an excellent alternative to produce environmental-friendly biodiesel. In this study, lipase extracted from Cocoa Pod Husk (CPH) and immobilized through cross linked enzyme aggregate (CLEA) technology catalysed the transesterification of Jatropha curcas oil successfully. Face centered central composite design (FCCCD) under response surface methodology (RSM) was used to get the optimal conditions of 3% (w/w) enzyme loading, 4h reaction time and 1:6 oil/ethanol ratio to achieve the highest conversion of free fatty acid and glycerides into biodiesel (93%). The reusability of CLEA-lipase was tested and after seven cycles, the conversion percentage reduced to 58%. The results revealed that CLEA lipase from CPH is a potential catalyst for biodiesel production.

* Title and MeSH Headings from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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