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.
| Language | English |
|---|---|
| Pages | 145-157 |
| Number of pages | 13 |
| Journal | European Polymer Journal |
| Volume | 103 |
| DOIs | |
| Publication status | Published - 1 Jun 2018 |
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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 journal › Article
}
TY - JOUR
T1 - Electrospun PVA fibers loaded with antioxidant fillers extracted from Durvillaea antarctica algae and their effect on plasticized PLA bionanocomposites
AU - Arrieta, M. P.
AU - López de Dicastillo, C.
AU - Garrido, L.
AU - Roa, K.
AU - Galotto Lopez, Maria J.
AU - Galotto Lopez, Maria J.
PY - 2018/6/1
Y1 - 2018/6/1
N2 - 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.
AB - 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.
KW - Active packaging
KW - Durvillaea antarctica
KW - Poly(lactic acid)
KW - Poly(vinyl alcohol)
UR - http://www.scopus.com/inward/record.url?scp=85045474925&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85045474925&partnerID=8YFLogxK
U2 - 10.1016/j.eurpolymj.2018.04.012
DO - 10.1016/j.eurpolymj.2018.04.012
M3 - Article
VL - 103
SP - 145
EP - 157
JO - European Polymer Journal
T2 - European Polymer Journal
JF - European Polymer Journal
SN - 0014-3057
ER -