多酚
增塑剂
淀粉
抗氧化剂
化学
极限抗拉强度
蝶豆
变性淀粉
有机化学
食品科学
化学工程
材料科学
复合材料
医学
替代医学
病理
工程类
作者
João Vítor do Nascimento,K. Silva,Vanessa Cipriani Giuliangeli,Arlete Mendes‐Faia,Lorena Paloma Piai,Roger Nabeyama Michels,Tatiane Dal Bosco,Gylles Ricardo Ströher,Marianne Ayumi Shirai
标识
DOI:10.1016/j.ijbiomac.2023.128232
摘要
The kinetic release of phenolic compounds from biodegradable films with Clitoria ternatea flower extract (ECT) in different food-simulant fluids and compostability were evaluated for the first time. This work aimed to incorporate ECT in starch-PVA-based film formulations, and the antioxidant capacity, total phenolic compounds, opacity, color, mechanical properties, compostability, and polyphenol release in different fluid simulants were determined. The results obtained showed that antioxidant activity and the total phenolic compounds were ECT dose dependent. Due to its antioxidant properties, ECT interfered with the film's composting process, reaching an average weight loss of 70 %. Additionally, the addition of ECT interfered with the mechanical properties, reducing the tensile strength, probably due to the plasticizer effect. The type of simulating fluid influenced the release of polyphenols from the films, and the presence of water favored the release because it hydrated and swelled the starch-PVA matrix, facilitating diffusion. The classic zero- and first-order models were the most effective in describing the release kinetics of polyphenols from the films. The results of this study demonstrate that the antioxidant potential and the release of polyphenols from starch-PVA-based films in different simulated fluids allow their application in active packaging, making them a sustainable alternative for food preservation.
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