"EVALUATION OF A CROSS-LINKING AGENT IN THE PREPARATION OF FILMS BASED ON CHITOSAN AND PECTIN FOR FOOD PACKAGING APPLICATIONS "

IF 1.3 4区农林科学 Q2 MATERIALS SCIENCE, PAPER & WOOD

Cellulose Chemistry and Technology Pub Date : 2022-11-29 DOI:10.35812/cellulosechemtechnol.2022.56.94

Margarita María SALDÍVAR GUEVARA, V. Saucedo-Rivalcoba, J. Rivera‐Armenta, Laura Inés ELVIRA TORALES

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Abstract

The development of edible films applied to fruits and vegetables postharvest have generated recent advances regarding the synergistic effect of components on the shelf life of products. Currently, there are edible films made by combining several biopolymers, including chitosan, starch, pectin, alginate, among others. The application of physical barriers, such as films, on the surface of fruits can regulate the permeability to O2, CO2, and water vapor, delaying the natural process of physiological maturity. The use of films also improves the mechanical properties of horticultural products, which are essential in handling them. In the present work, films based on chitosan (antimicrobial agent) and pectin (gelling agent) as a biopolymer matrix, as well as glycerol (plasticizer) and calcium chloride (cross-linking agent), were prepared. The effect of adding the crosslinking agent on the film properties was evaluated by infrared spectroscopy (FTIR), thermogravimetric analysis (TGA) and dynamic viscosity testing.

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食品包装用壳聚糖和果胶制备薄膜用交联剂的评价

应用于水果和蔬菜采后的可食用薄膜的开发在成分对产品保质期的协同作用方面取得了最新进展。目前，有一些可食用的薄膜是由几种生物聚合物组合而成的，包括壳聚糖、淀粉、果胶、藻酸盐等。在水果表面应用物理屏障，如薄膜，可以调节对O2、CO2和水蒸气的渗透性，延缓生理成熟的自然过程。薄膜的使用还提高了园艺产品的机械性能，这对处理它们至关重要。本工作制备了以壳聚糖（抗菌剂）和果胶（胶凝剂）为生物聚合物基质，以及甘油（增塑剂）和氯化钙（交联剂）为基础的薄膜。通过红外光谱（FTIR）、热重分析（TGA）和动态粘度测试，评价了交联剂的加入对薄膜性能的影响。

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来源期刊

Cellulose Chemistry and Technology 工程技术-材料科学：纸与木材

CiteScore

2.30

自引率

23.10%

发文量

审稿时长

7.3 months

期刊介绍： Cellulose Chemistry and Technology covers the study and exploitation of the industrial applications of carbohydrate polymers in areas such as food, textiles, paper, wood, adhesives, pharmaceuticals, oil field applications and industrial chemistry. Topics include: • studies of structure and properties • biological and industrial development • analytical methods • chemical and microbiological modifications • interactions with other materials