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Enhancing the functional properties of acetylated hemicellulose films for active food packaging using acetylated nanocellulose reinforcement and polycaprolactone coating
Food Packaging and Shelf Life ( IF 8 ) Pub Date : 2020-06-01 , DOI: 10.1016/j.fpsl.2020.100481
Lindleen. R. Mugwagwa , Annie F.A. Chimphango

Abstract Acetylated hemicellulose (AH)-nanocellulose (ACNC) films coated with polycaprolactone (PCL) films, were evaluated as active packaging for aqueous, alcoholic, fatty and acidic food. The effects of nanocellulose loading (0–50 %), degree of acetylation (DS) (0–2.34) and polycaprolactone coating (0.3 g/mL) on hydrophobicity and solubility of AH films in food simulants, were investigated. In addition, AH-CNC/PCL films were doped with polyphenols and their antioxidant release (temperature 5 °C–40 °C, time - 48 h) into food simulants was evaluated experimentally and by modelling (Migratest software). Increasing ACNC DS and loading, combined with a PCL coating increased films’ hydrophobicity (24.59° to 82.48°) and reduced film solubility in all the simulants (∼82.8 %). The release of polyphenols by the films was highest and best predicted using Migratest software for the fatty food simulant. Therefore, these films can be used as active packaging for fatty foods. Furthermore, Migratest modelling can be used to predict film performance during film design.

中文翻译:

使用乙酰化纳米纤维素增强剂和聚己内酯涂层增强用于活性食品包装的乙酰化半纤维素薄膜的功能特性

摘要 涂有聚己内酯 (PCL) 薄膜的乙酰化半纤维素 (AH)-纳米纤维素 (ACNC) 薄膜被评估为水性、酒精、脂肪和酸性食品的活性包装。研究了纳米纤维素负载量 (0–50%)、乙酰化度 (DS) (0–2.34) 和聚己内酯涂层 (0.3 g/mL) 对 AH 膜在食品模拟物中的疏水性和溶解度的影响。此外,AH-CNC/PCL 薄膜掺杂了多酚,并通过实验和建模(Migratest 软件)评估了它们在食品模拟物中的抗氧化剂释放(温度 5°C-40°C,时间 - 48 小时)。增加 ACNC DS 和负载量,结合 PCL 涂层增加了薄膜的疏水性(24.59° 到 82.48°)并降低了薄膜在所有模拟物中的溶解度(~82.8%)。薄膜释放的多酚是最高的,并且使用 Migratest 软件对脂肪食品模拟物进行了最佳预测。因此,这些薄膜可用作脂肪食品的活性包装。此外,Migratest 建模可用于在薄膜设计期间预测薄膜性能。
更新日期:2020-06-01
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