Oxygen permeability of amylose and amylopectin films

Pirkko Forssell (Corresponding Author), Riitta Lahtinen, M. Lahelin, Päivi Myllärinen

Research output: Contribution to journalArticleScientificpeer-review

138 Citations (Scopus)

Abstract

The effects of water and glycerol contents on oxygen permeability of starch polymer films were investigated. Starch films were prepared of amylose and amylopectin by a casting technique and oxygen permeability was analysed at 20°C. Glycerol contents were 0, 10, 20 or 30% while water content varied from 8 to 36%. Under ambient humidity both amylose and amylopectin films were excellent oxygen barriers, as good as the commercial ethylene vinyl alcohol film which was studied as a reference material. It was observed that the film permeabilities were determined by water content; below 15% water both starch films were good oxygen barriers, above 20% water the barrier property was lost.
Original languageEnglish
Pages (from-to)125-129
JournalCarbohydrate Polymers
Volume47
Issue number2
DOIs
Publication statusPublished - 2002
MoE publication typeA1 Journal article-refereed

Keywords

  • amylose
  • amylopectin films
  • permeability

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