A new approach in maximizing and direct utilization of whole Jatropha curcas L. kernels in biodiesel production - Technological improvement

Alchris Woo Go, Sylviana Sutanto, Siti Zullaikah, Suryadi Ismadji*, Yi Hsu Ju

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)

Abstract

The direct (trans)esterification of whole Jatropha curcas L. (JCL) kernels in subcritical solvent mixture of water, methanol and acetic acid was explored. A high fatty acid methyl ester (FAME) yield of 96.56% could be achieved at a solvent (water: acetic acid: methanol=1:5:15, v/v/v) to solid ratio of 7cm3g-1. The reaction mixture was pressurize with carbon dioxide and reacted for 1h at 523K and 12.5MPa. Qualitative tests on the recovered polar fractions of the product were found to have radical scavenging activities. The characteristics of the spent kernel residues were also studied. The method employed in this study provides an alternative approach to better utilize JCL kernels and cut down the number of production steps.

Original languageEnglish
Pages (from-to)759-765
Number of pages7
JournalRenewable Energy
Volume85
DOIs
Publication statusPublished - 1 Jan 2016

Keywords

  • (Trans)esterification
  • Jatropha curcas
  • Subcritical acetic acid
  • Subcritical water
  • Supercriticritical methanol

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