Green-synthesized antibacterial and unidirectional water-permeable polylactic acid/ZnO composite film for enhanced preservation of perishable fruits

IF 6.7 2区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Materials Today Chemistry Pub Date : 2024-09-01 DOI:10.1016/j.mtchem.2024.102284

Xing Guo, Limei Li, Ye Qi, Jianyu Su, Xiaolong Ou, Mengyuan Lv, Ye Jin, Xiaofei Han, Yuanbao Zhang, Hongwei Wu, Rui Chen, Xinyi Wang

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引用次数: 0

Abstract

Preserving perishable fruits during transportation and storage is a critical challenge in modern logistics and supply chains. This study developed an antibacterial and unidirectional water-permeable tri-layered polylactic acid/ZnO composite film using green biosynthesis and electrospinning technologies to protect highly perishable non-climacteric fruits. The composite film, with encapsulated ZnO nanoparticles, exhibited exceptional antibacterial properties, achieving a 99.999 % inhibition rate against and . Additionally, the film's unidirectional water permeability allowed water droplets to penetrate its surface within 1.10 s, ensuring effective moisture retention. When used to package strawberries, cherries, and grapes, the film significantly reduced decay and moisture loss, keeping strawberries fresh for 8 days and cherries and grapes for 12 days at room temperature. This polylactic acid/ZnO composite film shows great potential for enhancing the preservation of perishable fruits in packaging applications.

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绿色合成抗菌单向透水聚乳酸/氧化锌复合膜，用于提高易腐水果的保鲜效果

在运输和储存过程中保存易腐水果是现代物流和供应链面临的一项严峻挑战。本研究利用绿色生物合成和电纺丝技术开发了一种抗菌、单向透水的三层聚乳酸/氧化锌复合膜，用于保护高度易腐的非桔梗类水果。封装了氧化锌纳米粒子的复合薄膜表现出卓越的抗菌性能，对和的抑制率达到 99.999%。此外，薄膜的单向透水性使水滴能在 1.10 秒内穿透其表面，确保了有效的保湿性。当用来包装草莓、樱桃和葡萄时，这种薄膜大大减少了腐烂和水分流失，在室温下草莓可保鲜 8 天，樱桃和葡萄可保鲜 12 天。这种聚乳酸/氧化锌复合薄膜在提高易腐水果的包装保鲜方面显示出巨大的潜力。

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来源期刊

Materials Today Chemistry Multiple-

CiteScore

8.90

自引率

6.80%

发文量

596

审稿时长

33 days

期刊介绍： Materials Today Chemistry is a multi-disciplinary journal dedicated to all facets of materials chemistry. This field represents one of the fastest-growing areas of science, involving the application of chemistry-based techniques to the study of materials. It encompasses materials synthesis and behavior, as well as the intricate relationships between material structure and properties at the atomic and molecular scale. Materials Today Chemistry serves as a high-impact platform for discussing research that propels the field forward through groundbreaking discoveries and innovative techniques.