Green Biosynthesized Selenium Nanoparticles by Cinnamon Extract and Their Antimicrobial Activity and Application as Edible Coatings with Nano-Chitosan
Green Biosynthesized Selenium Nanoparticles by Cinnamon Extract and Their Antimicrobial Activity and Application as Edible Coatings with Nano-Chitosan
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DOI：
10.1155/2021/6670709
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发表时间：
2021-03-18
影响因子：
3.3
通讯作者：
Moussa, Shaaban H.
中科院分区：
文献类型：
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作者：
Alghuthaymi, Mousa A.;Diab, Amany M.;Moussa, Shaaban H.
从虾废弃物中提取壳聚糖（Cht），并利用离子凝胶法将其转化为纳米粒子（NPs），构建了具有生物活性的纳米复合材料。硒纳米粒子（Se-NPs）植物合成肉桂（肉桂zeylanicum）树皮提取物（CIE），其特征在于和评价与Cht-NPs作为抗细菌性食源性病原体“大肠杆菌，沙门氏菌，金黄色葡萄球菌，李斯特菌”的抗菌复合物，并作为潜在的可食用涂层（EC）的基础。CIE-植物合成的Se-NPs具有均匀分布的球形形状，平均直径为23.2 nm。CIE、CIE/Se-NP和创新的CIE/Se/Cht-NP复合物对整个筛选的病原体表现出显著的抗菌作用; CIE/Se/Cht-NP复合物是最有效的。CIE/Se/Cht-NP纳米复合材料制备的EC具有匹配的抗菌方式，且随CIE/Se-NP百分比的增加而增强。扫描显微照片表明CIE/Se-NP附着于细菌细胞，在暴露10小时后导致其完全裂解和死亡。CIE/Se/Cht-NP复合物是利用高效的生物载体和生态友好的植物合成方法对食源性病原菌进行有效控制的有效药剂。
Bioactive nanocomposites were constructed, containing chitosan (Cht), extracted from shrimps' wastes, and transformed into nanoparticles (NPs) using ionic-gelation. Selenium NPs (Se-NPs) were phytosynthesized using cinnamon (Cinnamomum zeylanicum) bark extract (CIE), characterized and evaluated with Cht-NPs as antimicrobial composites against bacterial food-borne pathogens "Escherichia coli, Salmonella typhimurium, Staphylococcus aureus, and Listeria monocytogenes" and as potential edible coating (EC) basements. The CIE-phytosynthesized Se-NPs had well-distributed and spherical shapes with 23.2 nm mean diameter. The CIE, CIE/Se-NPs, and innovative CIE/Se/Cht-NP composites exhibited distinguished antibacterial actions toward the entire screened pathogens; CIE/Se/Cht-NP composite was significantly the most potent. The formulated ECs from CIE/Se/Cht-NP nanocomposites had matching antibacterial manner, which was strengthened with CIE/Se-NP percentage increments. Scanning micrographs indicated the attachment of CIE/Se-NPs to bacterial cells to cause their complete lysis and death after 10 h of exposure. CIE/Se/Cht-NP composites are proposed as effectual control agents toward food-borne pathogens using efficient biological carriers and eco-friendly phytosynthesis protocol.