Rapid biodiesel synthesis from waste pepper seeds without lipid isolation step

Jechan Lee, Jieun Kim, Yong Sik Ok, Eilhann E. Kwon

Research output: Contribution to journalArticlepeer-review

29 Citations (Scopus)


In situ transformation of lipid in waste pepper seeds into biodiesel (i.e., fatty acid methyl esters: FAMEs) via thermally-induced transmethylation on silica was mainly investigated in this study. This study reported that waste pepper seeds contained 26.9 wt% of lipid and that 94.1% of the total lipid in waste pepper seeds could be converted into biodiesel without lipid extraction step for only ∼1 min reaction time. This study also suggested that the optimal temperature for in situ transmethylation was identified as 390 °C. Moreover, comparison of in situ process via the conventional transmethylation catalyzed by H2SO4 showed that the introduced biodiesel conversion in this study had a higher tolerance against impurities, thereby being technically feasible. The in situ biodiesel production from other oil-bearing food wastes can be studied.

Original languageEnglish
Pages (from-to)17-20
Number of pages4
JournalBioresource technology
Publication statusPublished - 2017
Externally publishedYes


  • Biodiesel
  • Fatty acid methyl esters (FAMEs)
  • Food waste
  • Transmethylation
  • Waste-to-energy

ASJC Scopus subject areas

  • Bioengineering
  • Environmental Engineering
  • Renewable Energy, Sustainability and the Environment
  • Waste Management and Disposal


Dive into the research topics of 'Rapid biodiesel synthesis from waste pepper seeds without lipid isolation step'. Together they form a unique fingerprint.

Cite this