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Conversion of lipid from food waste to biodiesel

Sanjib Kumar Karmee, Darwin Linardi, Jisoo Lee, Carol Sze Ki Lin*

*Corresponding author for this work

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

Abstract

Depletion of fossil fuels and environmental problems are encouraging research on alternative fuels of renewable sources. Biodiesel is a promising alternative fuel to be used as a substitute to the petroleum based diesel fuels. However, the cost of biodiesel production is high and is attributed mainly to the feedstock used which leads to the investigation of low cost feedstocks that are economically feasible. In this paper, we report on the utilization of lipid obtained from food waste as a low-cost feedstock for biodiesel production. Lipid from food waste was transesterified with methanol using base and lipase as catalysts. The maximum biodiesel yield was 100% for the base (KOH) catalyzed transesterification at 1:10. M ratio of lipid to methanol in 2. h at 60. °C. Novozyme-435 yielded a 90% FAME conversion at 40. °C and 1:5 lipid to methanol molar ratio in 24. h. Lipid obtained from fungal hydrolysis of food waste is found to be a suitable feedstock for biodiesel production.
Original languageEnglish
Pages (from-to)169-173
JournalWaste Management
Volume41
Online published3 Apr 2015
DOIs
Publication statusPublished - Jul 2015

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 7 - Affordable and Clean Energy
    SDG 7 Affordable and Clean Energy

Research Keywords

  • Base
  • Biodiesel
  • Food waste
  • Hydrolysis
  • Lipase
  • Lipid

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