Decolorization of a corn fiber arabinoxylan extract and formulation of biodegradable films for food packaging

Research output: Contribution to journalArticlepeer-review

1 Downloads (Pure)

Abstract

Corn fiber from the corn starch industry is a by-product produced in large quantity that is mainly used in animal feed formulations, though it is still rich in valuable components, such as arabinoxylans, with proven film-forming ability. During arabinoxylans’ recovery under alkaline extraction, a dark-colored biopolymer fraction is obtained. In this work, a purified arabinoxylan extract from corn fiber with an intense brownish color was decolorized using hydrogen peroxide as the decolorizing agent. Biodegradable films prepared by casting the decolorized extract exhibited a light-yellow color, considered more appealing, envisaging their application in food packaging. Films were prepared with glycerol as plasticizer and citric acid as cross-linker. Although the cross-linking reaction was not effective, films presented antioxidant activity, a water vapor permeability similar to that of non-decolorized films, and other polysaccharides’ and mechanical properties that enable their application as packaging materials of low-water-content food products.

Original languageEnglish
Article number321
JournalMembranes
Volume11
Issue number5
DOIs
Publication statusPublished - 28 Apr 2021

Keywords

  • Arabinoxylan
  • Biodegradable films
  • Corn fiber
  • Decolorization
  • Food packaging

Fingerprint

Dive into the research topics of 'Decolorization of a corn fiber arabinoxylan extract and formulation of biodegradable films for food packaging'. Together they form a unique fingerprint.

Cite this