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

文献类型： 外文期刊

作者： Yu, Kaibo 1 ; Zhou, Lei 1 ; Peng, Shengfeng 1 ; Tian, Yuqing 1 ; Huang, Hairong 1 ; Chen, Xiaowei 1 ; Zhou, Wei 3 ; Zou, Liqiang 1 ; Liu, Wei 1 ;

作者机构： 1.Nanchang Univ, State Key Lab Food Sci & Resources, Nanchang 330047, Peoples R China

2.Nanchang Univ, Int Inst Food Innovat Co Ltd, Nanchang 330200, Peoples R China

3.Chinese Acad Trop Agr Sci, Agr Prod Proc Res Inst, Key Lab Trop Crop Prod Proc, Minist Agr & Rural Affairs, Zhanjiang 524001, Peoples R China

关键词： Metal-organic frameworks; Carboxymethyl cellulose; Multifunctional active films; Cinnamon essential oil; Barrier properties; Freshness preservation

期刊名称：FOOD PACKAGING AND SHELF LIFE （ 影响因子：10.6； 五年影响因子：9.8 ）

ISSN： 2214-2894

年卷期： 2025 年 47 卷

页码：

收录情况： SCI

摘要： 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 mu m) 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 degrees to 95.6 degrees. 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 degrees C. Therefore, the multifunctional Cu-BTC active film was readily produced and is promising to preserve perishable mangoes.

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