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Development of a thermally conductive and antimicrobial nanofibrous mat for the cold chain packaging of fruits and vegetables

文献类型： 外文期刊

作者： Shen, Chaoyi 1 ; Yang, Zhichao 2 ; Rao, Jingshan 2 ; Li, Jiangkuo 3 ; Wu, Di 1 ; He, Yong 1 ; Chen, Kunsong 2 ;

作者机构： 1.Zhejiang Univ, Coll Biosyst Engn & Food Sci, Hangzhou 310058, Peoples R China

2.Zhejiang Univ, Coll Agr & Biotechnol, Zhejiang Prov Key Lab Hort Plant Integrat Biol, State Agr Minist,Lab Hort Plant Growth Dev & Qual, Zijingang Campus, Hangzhou 310058, Peoples R China

3.Tianjin Acad Agr Sci, Natl Engn & Technol Res Ctr Preservat Agr Prod Ti, Tianjin 300384, Peoples R China

4.Zhejiang Univ, Zhongyuan Inst, Zhengzhou 450000, Peoples R China

关键词： Solution blow spinning; Boron nitride nanosheets; Polycaprolactone; Chitosan; Antimicrobial activity; Thermal conductivity

期刊名称：MATERIALS & DESIGN （ 影响因子：9.417； 五年影响因子：8.272 ）

ISSN： 0264-1275

年卷期： 2022 年 221 卷

页码：

收录情况： SCI

摘要： Improving the thermal conductivity of antimicrobial packaging materials is important for transferring the respiratory heat produced by fruits and vegetables during the cold chain process, leading to enhanced cooling efficiency and reduction of postharvest losses. In this work, solution blow spinning (SBS) was used to rapidly develop boron nitride/polycaprolactone (PCL)/chitosan (CS) nanofibrous mats. The results show that the in-plane and cross-plane thermal conductivities of the boron nitride nanosheet (BNNS)/ PCL/CS mats were 1.403 and 0.826 W m(-1) K-1, respectively, which were 2.4 and 1.4 times those of the control group, showing the rapid response of the developed mats to heat during a 40 s heating process. Morphology results show that BNNSs were evenly stacked on the PCL/CS nanofibers in physics mode. With the incorporation of BNNSs, the thermal stability and water vapor barrier property of the developed mats were improved, and the average diameter of the nanofibers decreased from 385.6 nm to 221.0 nm. Moreover, the developed mats exhibited good antimicrobial activity in vitro and possessed hydrophobic surfaces. This work shows that the BNNS/PCL/CS nanofibrous mats developed by SBS are a promising packaging material for a green and sustainable cold chain of fruits and vegetables. (C) 2022 The Author(s). Published by Elsevier Ltd.

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