掺入积雪草植物化合物的多壁碳纳米管在食品包装中的应用及其抗微生物特性

IF 3.1 4区工程技术 Q2 POLYMER SCIENCE

Polymers for Advanced Technologies Pub Date : 2024-07-01 DOI:10.1002/pat.6518

Santhini Sivakumar, T. A. Hema

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引用次数: 0

摘要

采用简单的物理吸附法制备了具有抗菌活性的涂覆在多壁碳纳米管（MWCNT）上的积雪草植物化合物。与纯 MWCNT 相比，在功能化 MWCNT 中加入积雪草植物化合物可改善积雪草植物化合物共轭 MWCNT 的物理性质。傅立叶变换红外光谱（FTIR）结果表明 MWCNT 涂层上存在生物活性化合物，拉曼光谱通过 MWCNT 中 636 至 1594.46 cm-1 的峰值证实了不同范围内碳的存在。扫描电子显微镜（SEM）显微照片图像证实了含有积雪草植物化合物的 MWCNT 纳米复合材料的存在，其表面结构具有清晰的孔隙和可见管道。透射电子显微镜（TEM）图像显示出均匀分散的球形超薄纳米片，尺寸为 10-20 纳米。进一步的抗菌分析结果表明，积雪草植物化合物涂层增强了 MWCNT 的抗菌活性。制备的积雪草植物化合物-MWCNT 对四种食品污染细菌临床病原体伤寒沙门氏菌、大肠埃希氏菌、铜绿假单胞菌和肺炎克雷伯菌分别具有最大抑菌作用，并产生 11 ± 0.06 毫米、17 ± 0.08 毫米、14 ± 0.07 毫米和 16 ± 0.08 毫米的高抑菌区。积雪草植物化合物共轭-MWCNT旋涂包装具有良好的保鲜性能。与 MWCNT 共轭的积雪草植物化合物具有抗菌特性，可用于开发新型食品包装材料，从而防止食品变质，提高食品的稳定性和可持续性，并延长食品的保质期。

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Multi‐walled carbon nanotubes doped with Phytocompounds of Centella asiatica for food packing applications and their anti‐microbial properties

Centella asiatica phytocompounds coated onto Multi‐Walled Carbon Nanotube (MWCNT) possessing antibacterial activity were prepared using a simple physical absorption method. The incorporation of Centella asiatica phytocompounds into functionalized MWCNTs could improve the physical properties of Centella asiatica phytocompounds conjugated MWCNT compared to pure MWCNT. Fourier Transform Infrared Spectroscopy (FTIR) results depict the presence of bioactive compounds on MWCNT coatings and the Raman spectrum confirms the presence of carbon in various ranges by their peaks from 636 to 1594.46 cm−1 in the MWCNT. Scanning Electron Microscope (SEM) micrograph images confirmed the existence of MWCNT‐Nano composites with Centella asiatica phytocompounds exhibiting the surface structure with pore clarity and visible pipes. Transmission Electron Microscope (TEM) images show the uniform dispersed spherical ultrathin nanosheets at the size of 10–20 nm. Further anti‐bacterial analysis results revealed that Centella asiatica phytocompounds coating enhances the anti‐bacterial activity of MWCNT. Prepared Centella asiatica phytocompounds ‐MWCNT possess maximal inhibition and produces high zones of inhibition 11 ± 0.06, 17 ± 0.08, 14 ± 0.07, and 16 ± 0.08 mm against four food‐spoiling bacterial clinical pathogens Salmonella typhi, Escherichia coli, Pseudomonas aeruginosa and Klebsiella pneumonia respectively. Centella asiatica phytocompounds conjugated‐MWCNT spin‐coated packaging showed good preservation properties. Centella asiatica phytocompounds conjugated with MWCNTs provide antimicrobial properties, enabling the development of novel food packaging materials that can protect food from spoilage, increase food stability, and sustainability, and improve the shelf life of food.

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来源期刊

Polymers for Advanced Technologies 工程技术-高分子科学

CiteScore

6.20

自引率

5.90%

发文量

337

审稿时长

2.1 months

期刊介绍： Polymers for Advanced Technologies is published in response to recent significant changes in the patterns of materials research and development. Worldwide attention has been focused on the critical importance of materials in the creation of new devices and systems. It is now recognized that materials are often the limiting factor in bringing a new technical concept to fruition and that polymers are often the materials of choice in these demanding applications. A significant portion of the polymer research ongoing in the world is directly or indirectly related to the solution of complex, interdisciplinary problems whose successful resolution is necessary for achievement of broad system objectives. Polymers for Advanced Technologies is focused to the interest of scientists and engineers from academia and industry who are participating in these new areas of polymer research and development. It is the intent of this journal to impact the polymer related advanced technologies to meet the challenge of the twenty-first century. Polymers for Advanced Technologies aims at encouraging innovation, invention, imagination and creativity by providing a broad interdisciplinary platform for the presentation of new research and development concepts, theories and results which reflect the changing image and pace of modern polymer science and technology. Polymers for Advanced Technologies aims at becoming the central organ of the new multi-disciplinary polymer oriented materials science of the highest scientific standards. It will publish original research papers on finished studies; communications limited to five typewritten pages plus three illustrations, containing experimental details; review articles of up to 40 pages; letters to the editor and book reviews. Review articles will normally be published by invitation. The Editor-in-Chief welcomes suggestions for reviews.