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Biodegradable phase change materials with high latent heat: Preparation and application on Lentinus edodes storage

文献类型： 外文期刊

作者： Kong, Qi 1 ; Mu, Honglei 1 ; Han, Yanchao 1 ; Wu, Weijie 1 ; Tong, Chuan 1 ; Fang, Xiangjun 1 ; Liu, Ruiling 1 ; Chen, Ha 1 ;

作者机构： 1.Minist Agr & Rural Affairs, Sci Inst,China Natl Light Ind, Zhejiang Acad Agr Sci,Key Lab Postharvest Preserv, Key Lab Postharvest Handing Fruits,Key Lab Fruits, Hangzhou 310021, Peoples R China

关键词： Biodegradable; High latent heat; Phase change material; Mushroom; Storage quality

期刊名称：FOOD CHEMISTRY （ 影响因子：7.514； 五年影响因子：7.516 ）

ISSN： 0308-8146

年卷期： 2021 年 364 卷

页码：

收录情况： SCI

摘要： In order to develop biodegradable phase change materials (PCMs) with high latent heat for cold chain logistics, superabsorbent resin (SAR) was prepared based on starch graft copolymerization. FTIR and DSC demonstrated that acrylic acid was successfully grafted onto starches and optimum latent heat of PCM was 330.4 J/g with 10% (w/w) starch. The water retention of PCM with 10% (w/w) starch was 0.49 after heating at 50 degrees C for 200 h, which was 4.9 folds higher than that of non-starch PCM. Biodegradation rate of PCM was 60.12% within 75-day burial, which was 6 folds higher than that of non-starch PCM. Moreover, significant reduction in browning index, odor, decay, relative conductivity and malondialdehyde (MDA) content was observed in Lentinus edodes treated by biodegradable PCM. These results indicated that the application of biodegradable PCM could extend the shelf life of fresh L. edodes stored at 25 degrees C.

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