Potato peeling costreams as raw materials for biopolymer film preparation

Katariina Rommi (Corresponding Author), Jenni Rahikainen, Jari Vartiainen, Ulla Holopainen, Panu Lahtinen, Kaisu Honkapää, Raija Lantto

Research output: Contribution to journalArticleScientificpeer-review

10 Citations (Scopus)

Abstract

Potato peel mass is a costream produced in large quantities by the food industry. Its availability and the presence of starch (46%), pectin, and cellulose make it a potential renewable raw material for polymer products. In this study, biopolymer films were produced from potato peel mass and glycerol. High‐pressure homogenization (HPH) and HPH combined with heat treatment were investigated as pretreatment technologies before film casting. HPH‐treated potato peel mass yielded biopolymer films with similar barrier and mechanical properties as films prepared from pure potato starch, including complete impermeability to grease. Additional heat treatment of the peel mass enhanced starch gelatinization, resulting in improved barrier properties and smoother surface topography of the films. Films with similar appearance and quality were also obtained from starch‐free potato peel mass, indicating that potato fiber rich in pectin and cellulose is likewise a suitable material for biopolymer film preparation after HPH treatment.
Original languageEnglish
Article number42862
Number of pages11
JournalJournal of Applied Polymer Science
Volume133
Issue number5
DOIs
Publication statusPublished - Feb 2016
MoE publication typeA1 Journal article-refereed

Keywords

  • biopolymers and renewable polymers
  • films
  • mechanical properties
  • microscopy
  • polysaccharides

Fingerprint Dive into the research topics of 'Potato peeling costreams as raw materials for biopolymer film preparation'. Together they form a unique fingerprint.

  • Cite this