Comparison of the sustainability metrics of the petrochemical and biomass-based routes to methionine

J.P.M. Sanders*, R.A. Sheldon

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

7 Citations (Scopus)

Abstract

Sustainability metrics, based on material efficiency, energy input, land use and costs, of three processesfor the manufacture of methionine are compared. The petrochemical process affords dl-methionine whilethe two biomass-based routes afford the l-enantiomer. From the point of view of the major application,in animal feed, either can be used. The first bio-based route, developed by CJ Cheil-Jedang, involves theproduction of an l-methionine precursor, O-succinyl homoserine by fermentation followed by enzymaticreaction of the latter with methyl mercaptan.The second bio-based route involves the isolation of l-methionine from grass protein. Based on thisconcise evaluation of the sustainability metrics we conclude that both bio-based processe are potentiallyattractive sustainable routes for the manufacture of methionine.

Original languageEnglish
Pages (from-to)44-49
JournalCatalysis today
Volume239
DOIs
Publication statusPublished - 2015

Keywords

  • Biomass
  • Economic evaluation
  • Green metrics
  • Land use
  • Methionine

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