Bio-ethanol production from non-food parts of cassava (Manihot esculenta Crantz)

Ambio. 2012 May;41(3):262-70. doi: 10.1007/s13280-011-0183-z. Epub 2011 Oct 11.

Abstract

Global climate issues and a looming energy crisis put agriculture under pressure in Sub-Saharan Africa. Climate adaptation measures must entail sustainable development benefits, and growing crops for food as well as energy may be a solution, removing people from hunger and poverty without compromising the environment. The present study investigated the feasibility of using non-food parts of cassava for energy production and the promising results revealed that at least 28% of peels and stems comprise dry matter, and 10 g feedstock yields >8.5 g sugar, which in turn produced >60% ethanol, with pH ≈ 2.85, 74-84% light transmittance and a conductivity of 368 mV, indicating a potential use of cassava feedstock for ethanol production. Thus, harnessing cassava for food as well as ethanol production is deemed feasible. Such a system would, however, require supportive policies to acquire a balance between food security and fuel.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Biofuels*
  • Climate Change
  • Conservation of Natural Resources / methods
  • Ethanol / chemistry
  • Ethanol / metabolism*
  • Food Supply*
  • Humans
  • Manihot*

Substances

  • Biofuels
  • Ethanol