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用于抗菌和食品涂层解决方案的丝素蛋白基银纳米复合材料的合成、表征及应用

Synthesis, characterization and application of silk sericin-based silver nanocomposites for antibacterial and food coating solutions.

作者信息

Shaw Shubhajit, Mondal Rittick, Dam Paulami, Mandal Avijit, Acharya Ritwik, Manna Sanjeet, Gangopadhyay Debnirmalya, Mandal Amit Kumar

机构信息

Department of Sericulture, Raiganj University Raiganj 733134 West Bengal India

Department of Life Sciences, Presidency University Kolkata 700073 India.

出版信息

RSC Adv. 2024 Oct 21;14(45):33068-33079. doi: 10.1039/d4ra07056a. eCollection 2024 Oct 17.

DOI:10.1039/d4ra07056a
PMID:39435006
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11492224/
Abstract

The rising demand for fresh and safe food is driving advancements in preservation technologies, with nanoparticles offering a revolutionary solution. These particles extend shelf life, preserve nutritional value, and enhance food safety, aligning with present consumer expectations. This study explores the eco-friendly synthesis, characterization, and application of silk sericin-based silver nanoparticles (SS-AgNPs) for antibacterial and food coating purposes. Silk sericin, a byproduct of the silk industry, is typically discarded despite its valuable properties like biocompatibility, biodegradability, and antimicrobial activity. In this research, sericin from cocoons was used as a reducing and stabilizing agent to synthesize SS-AgNPs. Characterization was performed using UV-vis spectroscopy, Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM), and dynamic light scattering (DLS). Antibacterial tests confirmed the efficacy of SS-AgNPs against sp. and sp., while food coating trials on tomatoes significantly reduced weight loss and microbial contamination. Biocompatibility was further verified through hemolysis and MTT assays, confirming SS-AgNPs' safety for biomedical and food-related uses. This study underscores the potential to convert sericin waste into a valuable resource, promoting sustainability and increasing the commercial value of sericulture.

摘要

对新鲜安全食品日益增长的需求推动了保鲜技术的进步，纳米颗粒提供了一种革命性的解决方案。这些颗粒可延长保质期、保留营养价值并提高食品安全性，符合当前消费者的期望。本研究探索了基于丝胶蛋白的银纳米颗粒（SS-AgNPs）用于抗菌和食品涂层目的的环保合成、表征及应用。丝胶蛋白是丝绸工业的副产品，尽管具有生物相容性、生物可降解性和抗菌活性等宝贵特性，但通常被丢弃。在本研究中，来自蚕茧的丝胶蛋白被用作还原剂和稳定剂来合成SS-AgNPs。使用紫外可见光谱、傅里叶变换红外光谱（FTIR）、X射线衍射（XRD）、扫描电子显微镜（SEM）和动态光散射（DLS）进行表征。抗菌测试证实了SS-AgNPs对 菌和 菌的有效性，而在西红柿上进行的食品涂层试验显著减少了重量损失和微生物污染。通过溶血和MTT试验进一步验证了生物相容性，证实了SS-AgNPs在生物医学和食品相关用途方面的安全性。本研究强调了将丝胶蛋白废物转化为宝贵资源的潜力，促进了可持续性并提高了养蚕业的商业价值。

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