Electrospun PVA fibers loaded with antioxidant fillers extracted from Durvillaea antarctica algae and their effect on plasticized PLA bionanocomposites

M. P. Arrieta, C. López de Dicastillo, L. Garrido, K. Roa, Maria J. Galotto Lopez, Maria J. Galotto Lopez

Research output: Contribution to journalArticle

  • 2 Citations

Abstract

Marine algae are important biomass source which can be used as sources for the extraction of interesting reinforcing materials with antioxidant activity. An extraction protocol was developed to determine the extraction yield (%), the total phenolic compounds and the antioxidant activity of Durvillaea antarctica algae extract, a Chilean brown algae. D. antarctica extract was added to plasticized poly(lactic acid) (PLA) matrices with triethyl citrate (TEC) to produce antioxidant bionanocomposites for active food packaging. Two different approaches were followed: the direct incorporation of D. antarctica, as well as its introduction encapsulated into electrospun poly(vinyl alcohol) (PVA) fibers. Flexible and optically transparent bionanocomposite films were obtained by solvent casting method. The effects of D. antarctica concentration and its incorporation into electrospun PVA fibers on the structural, thermal, mechanical and barrier properties of PLA based films were studied. D. antarctica protected plasticized PLA matrix from thermal degradation. The synergic effect of the D. antarctica and electrospun PVA fibers enhanced the PLA crystallinity, the oxygen barrier and mechanical performance. The antioxidant effectiveness of bionanocomposites was confirmed by release studies into a fatty food simulant, and the antimicrobial activity was also tested against Escherichia coli. The successful production of bionanocomposites incorporating D. antarctica extracted from biomass and the improved mechanical resistance, enhanced oxygen barrier as well as the antioxidant activity suggest potential applications as sustainable active food packaging.

LanguageEnglish
Pages145-157
Number of pages13
JournalEuropean Polymer Journal
Volume103
DOIs
Publication statusPublished - 1 Jun 2018

Fingerprint

antioxidants
Antarctic regions
algae
Algae
Antioxidants
fillers
Fillers
fibers
Fibers
food
Packaging
Biomass
biomass
packaging
Oxygen
reinforcing materials
Lactic acid
Escherichia coli
lactic acid
plasticizers

Keywords

  • Active packaging
  • Durvillaea antarctica
  • Poly(lactic acid)
  • Poly(vinyl alcohol)

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Polymers and Plastics
  • Organic Chemistry

Cite this

Electrospun PVA fibers loaded with antioxidant fillers extracted from Durvillaea antarctica algae and their effect on plasticized PLA bionanocomposites. / Arrieta, M. P.; López de Dicastillo, C.; Garrido, L.; Roa, K.; Galotto Lopez, Maria J.; Galotto Lopez, Maria J.

In: European Polymer Journal, Vol. 103, 01.06.2018, p. 145-157.

Research output: Contribution to journalArticle

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