Zhao Linlin, Jiang Huinan, Han Zhengxuan, Gu Wenqin, Chitrakar Bimal, Meng Xiangren
College of Tourism and Culinary Science, Yangzhou University, Yangzhou 225127, China.
Key Laboratory of Chinese Cuisine Intangible Cultural Heritage Technology Inheritance, Ministry of Culture and Tourism, Yangzhou 225127, China.
Antioxidants (Basel). 2025 May 31;14(6):669. doi: 10.3390/antiox14060669.
Carbon dots perform a variety of functions when they are incorporated into active films synthesized from soy protein isolate/polyvinyl alcohol. The study examined the impact of varying concentrations of carbon dots on the structural, bioactive, and physicochemical properties of composite films. The addition of carbon dots improved the UV-blocking rate (up to 99.64%) with a higher water-barrier property of the films. The films with carbon dot-enhanced antioxidant activities (ABTS was 99.71%, and DPPH was 51.44%) exhibited strong antibacterial activities against and . In a hydrophilic environment, the high release rate of carbon dots was found to enhance the biological activity of films. The application of 0.8% composite film resulted in significant shelf-life extension for fresh jujubes, meatballs, and soybean oil. These results demonstrated the feasibility of composite films as an active packaging material.
当碳点被掺入由大豆分离蛋白/聚乙烯醇合成的活性薄膜中时，它们会发挥多种功能。该研究考察了不同浓度的碳点对复合薄膜的结构、生物活性和物理化学性质的影响。碳点的添加提高了紫外线阻隔率（高达99.64%），且薄膜具有更高的阻水性能。具有碳点增强抗氧化活性的薄膜（ABTS为99.71%，DPPH为51.44%）对[具体细菌名称1]和[具体细菌名称2]表现出较强的抗菌活性。在亲水环境中，发现碳点的高释放率增强了薄膜的生物活性。0.8%的复合薄膜应用于鲜枣、肉丸和大豆油时，显著延长了它们的保质期。这些结果证明了复合薄膜作为活性包装材料的可行性。
