维生素E包封柠檬草油纳米乳对革兰氏阴性菌和革兰氏阳性菌的抑菌研究

IF 1.6 4区 工程技术 Q3 ENGINEERING, CHEMICAL
Veda Prakash, Vaishakh Nair, Lipika Parida
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引用次数: 0

摘要

目前的研究评估了维生素E纳米乳剂的抗菌性能,该乳剂采用低能相转化乳化法合成。通过粒径分析对纳米乳进行了表征,并采用圆盘扩散法对纳米乳对金黄色葡萄球菌和大肠杆菌的抑菌效果进行了评价。通过扫描电镜(SEM)和傅里叶变换红外光谱(FTIR)研究了其抗菌活性的机制。维生素E纳米乳对两种细菌均有明显的抑菌活性。其中,对金黄色葡萄球菌和大肠杆菌的区抑制直径分别比纯维生素E组分提高了5.68倍和2.61倍。t80作为表面活性剂的掺入导致纳米乳液的抗菌性能降低。此外,研究发现,与其他纳米乳相比,维生素E包封的柠檬草油纳米乳对金黄色葡萄球菌和大肠杆菌具有更高的抗菌活性。与大肠杆菌相比,纳米乳剂对金黄色葡萄球菌表现出更大的抵抗力。扫描电镜(SEM)和红外光谱(FTIR)分析表明,纳米乳剂诱导细菌细胞膜通透性和表面特性发生改变。这些结果证实了维生素E纳米乳抗菌活性的机理,为其在食品基质中的潜在应用奠定了重要基础。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Antibacterial studies of vitamin E encapsulated lemongrass oil nanoemulsions against gram-negative and gram-positive bacteria

Antibacterial studies of vitamin E encapsulated lemongrass oil nanoemulsions against gram-negative and gram-positive bacteria

The current study assessed the antibacterial properties of vitamin E nanoemulsions, synthesized using a low-energy phase inversion emulsification method. The nanoemulsions were characterized through particle size analysis, and their antimicrobial efficacy was assessed against the bacteria Staphylococcus aureus and Escherichia coli by disc diffusion method. The mechanisms underlying the antibacterial activity were investigated through scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR). The vitamin E nanoemulsions demonstrated significant antibacterial activity against both bacterial strains. Specifically, the zone inhibition diameters for S. aureus and E. coli increased by 5.68 times and 2.61 times, respectively, compared to the pure vitamin E component. The incorporation of Tween 80 as a surfactant resulted in a reduction of the antibacterial properties of the nanoemulsions. Furthermore, the study found that the vitamin E encapsulated lemongrass oil nanoemulsion demonstrated higher antibacterial activity to S. aureus and E. coli when compared to other nanoemulsions. The nanoemulsions exhibited significantly greater resistance to S. Aureus as compared to E. coli. SEM and FTIR analyses revealed that the nanoemulsions induced alterations in bacterial cell membrane permeability and surface characteristics. These results confirmed the mechanism of vitamin E nanoemulsions antibacterial activity and established a crucial base for their potential use in food matrices.

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来源期刊
Canadian Journal of Chemical Engineering
Canadian Journal of Chemical Engineering 工程技术-工程:化工
CiteScore
3.60
自引率
14.30%
发文量
448
审稿时长
3.2 months
期刊介绍: The Canadian Journal of Chemical Engineering (CJChE) publishes original research articles, new theoretical interpretation or experimental findings and critical reviews in the science or industrial practice of chemical and biochemical processes. Preference is given to papers having a clearly indicated scope and applicability in any of the following areas: Fluid mechanics, heat and mass transfer, multiphase flows, separations processes, thermodynamics, process systems engineering, reactors and reaction kinetics, catalysis, interfacial phenomena, electrochemical phenomena, bioengineering, minerals processing and natural products and environmental and energy engineering. Papers that merely describe or present a conventional or routine analysis of existing processes will not be considered.
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