GA/HP-β-CD功能化COS/PLA复合膜的静电纺丝制备及保鲜研究

IF 8.5 1区农林科学 Q1 FOOD SCIENCE & TECHNOLOGY

Food Packaging and Shelf Life Pub Date : 2025-04-30 DOI:10.1016/j.fpsl.2025.101495

Wenge Yang , Jiaxing Hao , Yurui Wu , Yuheng Zhou , Li Mi , Yonghong Hu

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引用次数: 0

摘要

在本研究中，我们通过调节没食子酸(GA)/羟丙基-β-环糊精（HP-β-CD）的浓度来优化壳寡糖(COS)/聚乳酸（PLA）纳米纤维膜的结构和性能。SEM、FTIR和XRD证实了HP-β-CD成功络合了活性成分GA。随着复合体系浓度的增加，纤维直径从953.3 nm增加到1036.7 nm，同时增强了材料的机械强度、疏水性和热稳定性。结构优化和多组分协同作用增强了DPPH自由基清除能力（70.72 %）。结果表明，在7 d的樱桃番茄施用试验中，0.45 g GA/HP-β-CD负载膜的综合性能最佳，果实失重率降至14.74 %，硬度保持率高达11.63 ± 0.50 N。该膜在体外和体内均表现出良好的抗菌性能，充分证明了其作为食品保鲜活性包装材料的巨大潜力。

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Electrostatic spinning construction of GA/HP-β-CD functionalized COS/PLA composite membrane for cherry tomato preservation applications

In this study, we optimized the structure and performance of Chito-oligosaccharides (COS)/Polylactic acid (PLA) nanofibrous membranes by modulating the concentration of Gallic acid (GA)/Hydroxypropyl-β-cyclodextrin (HP-β-CD). SEM, FTIR, and XRD confirmed the successful complexation of the active ingredient GA by HP-β-CD. As the concentration of the composite system increased, the fiber diameter grew from 953.3 nm to 1036.7 nm, simultaneously enhancing the mechanical strength, hydrophobicity, and thermal stability of the material. Structural optimization and multi-component synergy enhanced DPPH radical scavenging (70.72 %). Experiments showed that the membrane loaded with 0.45 g GA/HP-β-CD had the best comprehensive performance in a seven-day cherry tomato application test: the fruit weight loss rate was reduced to 14.74 %, and the hardness retention rate remained as high as 11.63 ± 0.50 N. The membranes exhibited good antimicrobial properties both in vitro and in vivo, which fully validated their great potential as active packaging materials for prolonging the freshness of food.

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来源期刊

Food Packaging and Shelf Life Agricultural and Biological Sciences-Food Science

CiteScore

14.00

自引率

8.80%

发文量

214

审稿时长

70 days

期刊介绍： Food packaging is crucial for preserving food integrity throughout the distribution chain. It safeguards against contamination by physical, chemical, and biological agents, ensuring the safety and quality of processed foods. The evolution of novel food packaging, including modified atmosphere and active packaging, has extended shelf life, enhancing convenience for consumers. Shelf life, the duration a perishable item remains suitable for sale, use, or consumption, is intricately linked with food packaging, emphasizing its role in maintaining product quality and safety.