具有抗氧化、光催化和抗菌性能的cuo增强大豆分离蛋白生物膜的研究

Ankit Dhayal , Harish Kumar , Gaman Kumar , Shaurya Prakash , Ankita Yadav , Mettle Brahma
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引用次数: 0

摘要

本工作旨在将大豆分离蛋白(SPI)的独特性质与不同浓度(1 %,3 %和5 %)的CuO纳米颗粒(NPs)结合起来。采用溶液浇铸法制备了三种不同的由SPI/CuO NPs组成的复合生物膜。CuO NPs形成了更致密、更坚韧、更灵活的生物膜。傅里叶变换红外光谱表征验证了NPs与SPI矩阵之间的相互作用。CuO NPs增强了spi基生物膜的力学特性。XRD和SEM预测CuO纳米粒子的尺寸为80 ~ 100 nm,薄膜厚度为540 μm。spi基膜由于含有CuO NPs而表现出抗氧化活性。该生物膜对甲基红染料的光催化活性为86.02 %。该生物膜对金黄色葡萄球菌、大肠杆菌和白色念珠菌具有浓度依赖性的抑菌作用,其抑制范围与标准抗生素相当。与非癌细胞相比,cuo基SPI膜对恶性细胞表现出更高的细胞毒性。CuO NPs浓度的增加大大增强了其光催化、抗氧化和抗癌活性。CuO NPs增加了生物膜的耐久性,可用于保存或储存易受微生物变质的食品,因此可能用于食品包装,储存和运输部门。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Development of CuO-enhanced soybean protein isolate biofilms with antioxidant, photocatalytic, and antimicrobial properties for food packaging applications
This work aimed to combine the unique properties of Soybean Protein Isolate (SPI) with CuO nanoparticles (NPs) at different concentrations (1 %, 3 %, and 5 %). Three different composite biofilms comprised of SPI/CuO NPs were fabricated by the solution casting method. The CuO NPs lead to a denser, tougher, and flexible biofilm. Fourier transform infrared spectroscopic characterization validated the interaction between the NPs and the SPI matrix. CuO NPs enhanced the mechanical characteristics of the SPI-based biofilm. The XRD and SEM predicted 80–100 nm size of CuO NPs and 540 μm thickness of the film. The SPI-based film exhibited antioxidant activity due to the inclusion of CuO NPs. The biofilm also shows 86.02 % photocatalytic activity against methyl red dye. The biofilm exhibited concentration dependent bacteriostatic effects on S. aureus, E. coli, and C. albicans bacteria with a comparable zone of inhibition to standard antibiotics. In comparison to non-cancerous cells, CuO-based SPI films demonstrated higher cytotoxicity against malignant cells. A rise in the CuO NPs concentration greatly enhanced the photocatalytic, antioxidant, and anticancer activity. CuO NPs increase the endurance of biofilm that can be used to preserve or store food susceptible to microbial deterioration and hence a possible use in the food packaging, storing, and transport sector.
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