Gelatin/Carrageenan-Based Functional Films with Carbon Dots from Enoki Mushroom for Active Food Packaging Applications,ACS Applied Polymer Materials

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Gelatin/Carrageenan-Based Functional Films with Carbon Dots from Enoki Mushroom for Active Food Packaging Applications
ACS Applied Polymer Materials ( IF 4.4 ) Pub Date : 2021-11-03 , DOI: 10.1021/acsapm.1c01175
Swarup Roy ₁ , Parya Ezati ₁ , Jong-Whan Rhim ₁

Affiliation

Enoki mushroom-derived carbon dots (mCDs) were fabricated using a facile hydrothermal method to prepare gelatin/carrageenan-based active food packaging films. The mCDs were characterized by UV light spectroscopy, photoluminescence spectroscopy, and transmission electron spectroscopy. They showed high antioxidant activity with negligible cytotoxicity toward mouse fibroblast L929 cells and were evenly dispersed in the gelatin/carrageenan polymer matrix to form a compatible composite film. The addition of mCDs produced a highly transparent film with significant improvement in mechanical properties without much changing the water vapor permeability and hydrophobicity of the film. The release of mCDs from the composite film depended on food simulant solutions, and the release rate was highest in aqueous solution and 10% ethanol. In addition, mCD-added gelatin/carrageenan films exhibited strong antioxidant activity as determined by DPPH and ABTS methods. Therefore, the mCD-blended gelatin/carrageenan-based films with improved physical and functional properties can be used in active packaging applications to extend the shelf life of food products.

中文翻译：

明胶/角叉菜胶基功能薄膜，带有来自金针菇的碳点，用于活性食品包装应用

使用简单的水热法制备金针菇衍生的碳点 (mCD)，以制备基于明胶/角叉菜胶的活性食品包装薄膜。通过紫外光光谱、光致发光光谱和透射电子光谱对 mCD 进行表征。它们显示出高抗氧化活性，对小鼠成纤维细胞 L929 细胞的细胞毒性可忽略不计，并均匀分散在明胶/角叉菜胶聚合物基质中，形成相容的复合膜。mCD 的添加产生了一种高度透明的薄膜，其机械性能显着改善，而薄膜的水蒸气渗透性和疏水性没有太大变化。mCDs从复合膜中的释放取决于食品模拟物溶液，在水溶液和10%乙醇中的释放速率最高。此外，通过 DPPH 和 ABTS 方法确定，添加 mCD 的明胶/角叉菜胶薄膜表现出很强的抗氧化活性。因此，具有改善的物理和功能特性的 mCD 混合明胶/角叉菜胶基薄膜可用于活性包装应用，以延长食品的保质期。

更新日期：2021-12-10

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