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首页> 外文期刊>Nanobiotechnology, IET >Myxobacteria-mediated synthesis of silver nanoparticles and their impregnation in wrapping paper used for enhancing shelf life of apples
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Myxobacteria-mediated synthesis of silver nanoparticles and their impregnation in wrapping paper used for enhancing shelf life of apples

机译：粘菌介导的银纳米颗粒的合成及其在包装纸中的浸渍，以延长苹果的保质期

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The authors report Myxobacteria virescens (M. virescens) mediated synthesis of silver nanoparticles (AgNPs) and its efficacy against Staphylococcus aureus (ATCC-33591), Salmonella typhi (ATCC-51812), Escherichia coli (E. coli) (ATCC-14948), Klebsiella pneumoniae (MTCC-4030) and Pseudomonas aeruginosa (MTCC-4673). The organism exhibiting resistance to various antibiotics showed remarkable sensitivity, when used in combination of antibiotics and AgNPs. Antimicrobial property of AgNPs is playing a significant role in medicine and food storage. In this study, they have used M. virescens for the synthesis of AgNPs, which were characterised by using UV-Vis spectrophotometer, nano-particles tracking and analysis, zeta potential, Fourier transform infrared spectroscopy, X-ray diffraction and transmission electron microscopy. Synthesised AgNPs were impregnated into paper by three different methods, i.e. glass rod method (without binder), glass rod method (with binder) and direct synthesis of AgNPs on paper. Nanoparticles synthesis on paper showed the significant antimicrobial activity against Staphylococcus aureus (ATCC-33591), Salmonella typhi (ATCC-51812), E. coli (ATCC-14948), Klebsiella pneumoniae (MTCC-4030) and Pseudomonas aeruginosa (MTCC-4673). Paper impregnated with AgNPs was used for wrapping of fruits (apples) which increases their shelf life up to 15 days. This study demonstrates a new method for wrapping of fruits, which increases the shelf life of apples.
机译：作者报告了粘膜细菌粘膜线虫（M. virescens）介导的银纳米颗粒（AgNPs）的合成及其抗金黄色葡萄球菌（ATCC-33591），伤寒沙门氏菌（ATCC-51812），大肠杆菌（E. coli）（ATCC-14948）的功效，肺炎克雷伯菌（MTCC-4030）和铜绿假单胞菌（MTCC-4673）。与抗生素和AgNPs结合使用时，对各种抗生素具有抗性的生物体表现出显着的敏感性。 AgNPs的抗菌特性在医学和食品存储中起着重要作用。在这项研究中，他们使用粘膜葡萄球菌（M. virescens）合成了AgNPs，其特征在于使用紫外可见分光光度计，纳米粒子跟踪和分析，ζ电位，傅里叶变换红外光谱，X射线衍射和透射电子显微镜。通过三种不同的方法将合成的AgNPs浸渍到纸中，即玻璃棒法（无粘合剂），玻璃棒法（有粘合剂）和在纸上直接合成AgNPs。纸上合成的纳米颗粒显示出对金黄色葡萄球菌（ATCC-33591），伤寒沙门氏菌（ATCC-51812），大肠杆菌（ATCC-14948），肺炎克雷伯菌（MTCC-4030）和铜绿假单胞菌（MTCC-4673）的显着抗菌活性。用AgNPs浸渍的纸用于包装水果（苹果），可将其保质期延长至15天。这项研究表明了一种包装水果的新方法，可以延长苹果的保质期。

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