Polylactide films produced with bixin and acetyl tributyl citrate: Functional properties for active packaging - Archive ouverte HAL Access content directly
Journal Articles Journal of Applied Polymer Science Year : 2021

Polylactide films produced with bixin and acetyl tributyl citrate: Functional properties for active packaging

(1) , (2) , (1) , (1) , (1)
1
2

Abstract

Packaging materials are decisive to preserve the quality and nutritional value of food. Polylactide (PLA) is a biodegradable polymer with adequate mechanical properties for packaging applications, but its moderate oxygen barrier properties and high UV light transmission hamper its performance as packaging for oxygen-and light-sensitive products. Bixin, a carotenoid with coloring and antioxidant character, was used to improve the light barrier of PLA films plasticized or not with acetyl tri-butyl citrate (ATBC). The films were subjected to thermal treatment mimicking polymer processing temperatures. Despite more than 74 wt% of bixin degraded during heat treatment, films were still blocking up to 95% of UVA and 90% of UVB transmission. Plasticizing PLA with ATBC accelerated up to six times the bixin release into a food simulant, which allowed to reach relevant concentrations for food preservation. In conclusion, bixin is a promising natural antioxidant and UV-shielding additive of biodegradable packaging.
Fichier principal
Vignette du fichier
stollopen.pdf (871.01 Ko) Télécharger le fichier
Origin : Files produced by the author(s)

Dates and versions

hal-03413495 , version 1 (03-11-2021)

Identifiers

Cite

Liana Stoll, Sandra Domenek, Simone Hickmann Flôres, Sonia Marli B. Nachtigall, Alessandro de Oliveira Rios. Polylactide films produced with bixin and acetyl tributyl citrate: Functional properties for active packaging. Journal of Applied Polymer Science, 2021, 138 (17), pp.50302. ⟨10.1002/app.50302⟩. ⟨hal-03413495⟩
59 View
90 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More