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Characterization of a flavonol‐rich antioxidant fraction from Spondias purpurea L. pulp and the effect of its incorporation on cellulose acetate‐based film
Author(s) -
Vasconcelos Ludimilla Adorno,
Reis Letícia Caribé Batista,
Dias Êuder Reis,
Camilloto Geany Peruch,
Branco Alexsandro
Publication year - 2021
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.10956
Subject(s) - flavonoid , antioxidant , chemistry , cellulose acetate , ethyl acetate , pulp (tooth) , kaempferol , organic chemistry , ultimate tensile strength , food science , cellulose , materials science , composite material , medicine , pathology
BACKGROUND Active packaging containing natural flavonoid has recently emerged as a result of its potential to inhibit the oxidation of foods by interacting with it and/or its surrounding environment, with the aim of counteracting oxidation reactions and extending the shelf‐life of foods. The plant Spondias purpurea L. is widely found in northeastern Brazil and is known to contain bioactive flavonoids. The present study aimed to obtain a flavonoid‐rich fraction from the pulp of S. purpurea L. and incorporate it into the cellulose acetate film to obtain biodegradable films with antioxidant properties. RESULTS The fractionation in SiO 2 open‐column chromatography of the S. purpurea pulp crude extract furnished an antioxidant active fraction containing the flavonols quercetin 3‐ O ‐rutinoside and kaempferol 3‐ O ‐rutinoside as the major compounds. This active fraction was incorporated (10, 20 and 30 g kg −1 ) into the substance produced with the casting method for cellulose acetate films. The films produced were characterized concerning mechanical properties, water vapor permeability (WVP) and antioxidant activity. CONCLUSION The incorporation of the active flavonoid fraction from S. purpurea in the cellulose acetate films decreases WVP and elongation at break, at the same time as increasing antioxidant activity, tensile strength and elastic modulus. Thus, the S. purpurea pulps may be an alternative as a source of antioxidants for use in cellulose acetate films. © 2020 Society of Chemical Industry