Feruloyl esterases from Schizophyllum commune to treat food industry side-streams

authored by
Annabel Nieter, Sebastian Kelle, Diana Linke, Ralf G. Berger
Abstract

Agro-industrial side-streams are abundant and renewable resources of hydroxycinnamic acids with potential applications as antioxidants and preservatives in the food, health, cosmetic, and pharmaceutical industries. Feruloyl esterases (FAEs) from Schizophyllum commune were functionally expressed in Pichia pastoris with extracellular activities of 6000 U L−1. The recombinant enzymes, ScFaeD1 and ScFaeD2, released ferulic acid from destarched wheat bran and sugar beet pectin. Overnight incubation of coffee pulp released caffeic (>60%), ferulic (>80%) and p-coumaric acid (100%) indicating applicability for the valorization of food processing wastes and enhanced biomass degradation. Based on substrate specificity profiling and the release of diferulates from destarched wheat bran, the recombinant FAEs were characterized as type D FAEs. ScFaeD1 and ScFaeD2 preferably hydrolyzed feruloylated saccharides with ferulic acid esterified to the O-5 position of arabinose residues and showed an unprecedented ability to hydrolyze benzoic acid esters.

Organisation(s)
Institute of Food Chemistry
Type
Article
Journal
Bioresource technology
Volume
220
Pages
38-46
No. of pages
9
ISSN
0960-8524
Publication date
12.08.2016
Publication status
Published
Peer reviewed
Yes
ASJC Scopus subject areas
Bioengineering, Environmental Engineering, Renewable Energy, Sustainability and the Environment, Waste Management and Disposal
Sustainable Development Goals
SDG 7 - Affordable and Clean Energy
Electronic version(s)
https://doi.org/10.1016/j.biortech.2016.08.045 (Access: Closed)