Edible films produced from agrifood by-products and wastes

This study aims to develop edible films using agrifood by-products (pumpkin seeds, broken rice and orange pectin) and wastes (quince peel, potato peel, potato pulp, orange peel, pumpkin peel). The physicochemical characteristics of the films were investigated, including their mechanical and barrier...

Full description

Saved in:
Bibliographic Details
Published inInnovative food science & emerging technologies Vol. 88; p. 103442
Main Authors Jorge, Alexandre M.S., Gaspar, Marisa C., Henriques, Marta H.F., Braga, Mara E.M.
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.08.2023
Subjects
Agrifood
Agro-industrial
By-products
Circular economy
Edible films
Wastes
Circular economy
Agro-industrial
Wastes
Agrifood
By-products
Edible films
Online AccessGet full text

Cover

More Information
Summary:This study aims to develop edible films using agrifood by-products (pumpkin seeds, broken rice and orange pectin) and wastes (quince peel, potato peel, potato pulp, orange peel, pumpkin peel). The physicochemical characteristics of the films were investigated, including their mechanical and barrier properties. Higher amounts of plasticizer induced poorer mechanical and barrier properties in the films. The most promising ones were obtained with orange pectin, broken rice and pumpkin peel, with water contact angles (WCA) between 48° and 57°, maximum water vapor transmission rate and water vapor permeability of 575 g.m−2.d−1 and 108 × 10−12 g.Pa−1.s−1.m−1, respectively, Young's modulus between 350 and 800 MPa, maximum tensile strength between 9.0 and 26.25 MPa, and elongation at break between 2.28 and 9.3%. Orange pectin and broken rice are promising raw materials since they led to higher WCA, better barrier and mechanical properties. Broken rice and quince peel can be good substitutes for commercial starch and glycerol, respectively. Agro-industrial by-products and wastes revealed potential for the production of sustainable edible films. [Display omitted] •The composition of agrifood by-products and wastes altered the films' properties.•Sugar content was very important for the films' mechanical and barrier properties.•Orange pectin and broken rice improved the physicochemical properties of the films.•Broken rice can be a good substitute for commercial starch.•Glycerol can be replaced by quince peel.
ISSN:1466-8564
1878-5522
DOI:10.1016/j.ifset.2023.103442