Development of Biocomposites with Antioxidant Activity Based on Red Onion Extract and Acetate Cellulose

Antioxidants
Carol López de DicastilloMaría J Galotto

Abstract

Antioxidant biocomposites have been successfully developed from cellulose acetate, eco-friendly triethyl citrate plasticizer and onion extract as a source of natural antioxidants. First, an onion extraction process was optimized to obtain the extract with highest antioxidant power. Extracts under absolute ethanol and ethanol 85% were the extracts with the highest antioxidant activity, which were the characterized through different methods, DPPH (2,2-diphenyl-1-picrylhydrazyl) and ABTS (2,2'-azinobis(3-ethylbenzothiazoline-6-sulphonate)), that measure radical scavenger activity, and polyphenolic and flavonoid content. Afterwards, the extract was incorporated in cellulose acetate as polymer matrix owing to develop an active material intended to oxidative sensitive food products packaging. Different concentrations of onion extract and plasticizer were statistically studied by using response surface methodology in order to analyze the influence of both factors on the release of active compounds and therefore the antioxidant activity of these materials.

References

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Citations

Aug 30, 2017·Materials·Marina Patricia ArrietaJuan López
Sep 13, 2018·Journal of the Science of Food and Agriculture·Lynda Bouarab ChibaneNadia Oulahal
Jun 4, 2020·Polymers·Marina Patricia ArrietaCarol López de Dicastillo
Jan 17, 2020·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Cinzia PaganoLuana Perioli
Nov 23, 2020·Journal of the Science of Food and Agriculture·Ludimilla Adorno VasconcelosAlexsandro Branco

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Methods Mentioned

BETA
ABTS

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Statgraphics

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