Novel biotransformations of agro-industrial cereal waste by ferulic acid esterases

Craig B. Faulds, Begoňa Bartolomé, Gary Williamson

Research output: Contribution to journalArticleResearchpeer-review

49 Citations (Scopus)

Abstract

With the yearly accumulation of agro-industrial waste-material generated by the milling, brewing and sugar industries in Europe, the importance of extracting high value residues must be considered to offset the cost of treating and disposing of the residues. This work reviews the identification, purification and characterisation of novel microbial esterases capable of releasing the bioactive phenolic compound, ferulic acid, from cereal cell-walls and agro-industrial waste. These phenolic residues restrict the extent of hydrolysis of cell-wall carbohydrates. Potential applications for the esterases in the food and pharmaceutical industries are described. Enzymic removal of ferulic acid is very mild, allowing further treatment/processing of the residue and removes the need for environmentally-unfriendly chemical clean-up processes. We now report the hydrolysis, on a laboratory scale, of wheat bran (1 kg) by a Trichoderma xylanase preparation and an Aspergillus niger ferulic acid esterase (FAE-III) to produce free ferulic acid (5.7 g).

Original languageEnglish
Pages (from-to)367-374
Number of pages8
JournalIndustrial Crops and Products
Volume6
Issue number3-4
DOIs
Publication statusPublished - 1 Sep 1997
Externally publishedYes

Keywords

  • Aspergillus
  • Biotransformation
  • Cereal waste
  • Esterase
  • Feluric acid
  • Wheat bran

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