Antioxidant and antimicrobial activities of octenyl succinic anhydride modified Tamarind/Portulaca polysaccharide coating incorporated with protocatechuic acid methyl ester and its application in cherry tomatoes preservation

IF 10.6 1区农林科学 Q1 FOOD SCIENCE & TECHNOLOGY

Food Packaging and Shelf Life Pub Date : 2025-09-17 DOI:10.1016/j.fpsl.2025.101612

Miaole Zhang, Hong Chen, Linna Wang, Shaoying Zhang, Youwei Yu

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引用次数: 0

Abstract

The increasing consumer demand for high-quality fresh produce has been accompanied by growing concerns regarding environmental pollution caused by conventional synthetic packaging materials. In this study, an eco-friendly O-MP-P composite coating material was developed based on natural polysaccharides, with octenyl succinic anhydride (OSA)-modified tamarind seed polysaccharide (TSP) serving as the matrix, supplemented by protocatechuic acid methyl ester (MPCA) and purslane polysaccharide (POP). The postharvest preservation performance of tomatoes was significantly enhanced by this material, while considerable application potential was concurrently demonstrated. The results indicated that the precipitation of MPCA on the film surface was effectively inhibited by the incorporation of POP, leading to the formation of a denser microstructure. A reduction in water vapor permeability by 1.081 × 10⁻¹⁰ g/m·s·Pa was observed in the O-MP-P composite film compared to the TSP film. Evaluation of the O-MP-P composite film performance revealed excellent antioxidant properties (DPPH and ABTS radical scavenging rates of 88.06 % and 89.10 %, respectively) and significant antimicrobial activity against E. coli and S. aureus. Furthermore, it also exhibited enhanced mechanical strength and effective UV-blocking properties. Application of the O-MP-P coating to cherry tomatoes effectively inhibited fruit decay and degradation of key nutritional components including ascorbic acid and lycopene, maintained postharvest quality and extended shelf life from 16 days(control) to 20 days. Due to its superior preservation efficacy and simple preparation process, this coating material is considered to represent a promising industrial solution for the development of novel green preservation technologies for fruits and vegetables.

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原儿茶酸甲酯复合辛烯基琥珀酸酐改性罗望子/马齿苋多糖包衣的抗氧化抑菌活性及其在圣女果保鲜中的应用

随着消费者对高品质新鲜农产品需求的增加，人们对传统合成包装材料造成的环境污染也越来越关注。本研究以天然多糖为基础，以辛烯基丁二酸酐（OSA）改性罗望子多糖（TSP）为基体，以原儿茶酸甲酯（MPCA）和马齿苋多糖（POP）为补充材料，制备了一种环保型O-MP-P复合涂层材料。该材料可显著提高番茄的采后保鲜性能，同时显示出相当大的应用潜力。结果表明，POP的加入有效地抑制了MPCA在薄膜表面的析出，从而形成了更致密的微观结构。与TSP膜相比，O-MP-P复合膜的水蒸气渗透率降低了1.081 × 10−10 g/m·s·Pa。结果表明，O-MP-P复合膜具有良好的抗氧化性能（DPPH和ABTS自由基清除率分别为88.06 %和89.10 %），对大肠杆菌和金黄色葡萄球菌具有显著的抑菌活性。此外，它还表现出增强的机械强度和有效的紫外线阻挡性能。应用O-MP-P包衣有效抑制了圣女果的腐烂和抗坏血酸、番茄红素等关键营养成分的降解，保持了果实采后品质，并将贮藏期从16天（对照）延长至20天。由于其优异的保鲜效果和简单的制备工艺，该涂层材料被认为是开发新型绿色果蔬保鲜技术的一个有前途的工业解决方案。

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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.