One-pot preparation of carboxymethyl cellulose-based multifunctional active film embedded with Cu-BTC (benzenetricarboxylic acid) metal-organic framework for mango preservation

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

Food Packaging and Shelf Life Pub Date : 2025-01-01 DOI:10.1016/j.fpsl.2024.101416

Kaibo Yu , Lei Zhou , Shengfeng Peng , Yuqing Tian , Hairong Huang , Xiaowei Chen , Wei Zhou , Liqiang Zou , Wei Liu

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引用次数: 0

Abstract

Cu-BTC (benzenetricarboxylic acid) is a commercially safe metal-organic framework, but its use in constructing active films is hindered by water instability, uniformity of dispersion and multistep preparation processes. In the study, a carboxymethyl cellulose (CMC)-based multifunctional active film embedded with Cu-BTC was prepared and characterized to preserve mangoes. The small and uniform Cu-BTC crystals (1.25 μm) with water-resistant performance can be produced by adding polyvinylpyrrolidone. The microstructure results showed that this film was innovatively one-step preparation based on CMC matrix, water-resistant Cu-BTC and emulsion system. In the process, Cu-BTC adsorbing cinnamon essential oil (CEO) and liquid paraffin as oil phase was stabilized with CMC aqueous phase by emulsifier Tween 80. Compared with traditional emulsion films (CMC/CEO), this film improved loading capacity of CEO by 4.62 times. The release rates of CEO in the film increased from 17.6 % to 74.8 % with moisture increasing from 10 % to 40 % in ethanol aqueous solutions. Compared with pure CMC film, this film decreased water vapor permeability by approximately 55.0 % and increased water contact angle from 70.6° to 95.6°. In addition, this film possessed applicable water solubility (71.7 %), moderate oxygen permeability and enhanced UV–visible barrier. Cu-BTC and CEO endowed ethylene adsorption properties and antibacterial activity. Furthermore, the film decreased water loss by 23.2 %, increased firmness by 103.1 % and maintained overall quality of fresh mangoes for 12 d at 25 °C. Therefore, the multifunctional Cu-BTC active film was readily produced and is promising to preserve perishable mangoes.

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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.