Novel packaging film for humidity-controlled manipulating of ethylene for shelf-life extension of Agaricus bisporus

文献类型： 外文期刊

第一作者： Wu, Weina

作者： Wu, Weina;Ni, Xiaoyu;Shao, Ping;Gao, Haiyan

作者机构：

关键词： Humidity responsive; 1-Methylcyclopropene; Palladium on carbon; Active packaging; Edible fungus

期刊名称：LWT-FOOD SCIENCE AND TECHNOLOGY （ 影响因子：4.952； 五年影响因子：5.383 ）

ISSN： 0023-6438

年卷期： 2021 年 145 卷

页码：

收录情况： SCI

摘要： A new polysaccharide multilayer biodegradable film was developed and tested, which can scavenge ethylene and inhibit ethylene action by releasing 1-methylcyclopropene (1-MCP). The film was fabricated with the stacking order of hydrophobic ethyl cellulose outer layer, a mixture of 1-methylcyclopropene and palladium on carbon (1MCP-Pd/C) middle layer and hydrophilic hydrogel inner layer. The excess water produced by fruits and vegetables was absorbed by inner layer, avoiding the accumulation of condensed water. Meanwhile, the increase of the permeability of the inner hydrogel layer caused by moisture absorption facilitated manipulation of antistaling agent. SEM, TG and DSC proved that the functional components were successfully loaded on the film. Gas chromatography analysis results demonstrated that the 1-MCP release rate and ethylene removal rate could be controlled by adjusting the humidity (50% RH to 100% RH). The effects of the film on the main quality attributes of Agaricus bisporus were evaluated at 20 degrees C. This prepared functional film could delay the softening, browning and weight loss of mushrooms, maintain the integrity of mushroom cell membrane, maintain ascorbic acid content and soluble solid content, and inhibit the activity of ethylene synthesis-related enzymes.

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