Kuchaiyaphum Pusita, Amornsakchai Taweechai, Chotichayapong Chatrachatchaya, Saengsuwan Nikorn, Yordsri Visittapong, Thanachayanont Chanchana, Batpo Phitchaya, Sotawong Phatcharaporn
Department of Applied Chemistry, Faculty of Sciences and Liberal Arts, Rajamangala University of Technology Isan, Nakhon Ratchasima 30000, Thailand.
Center of Sustainable Energy and Green Materials, Faculty of Science, Mahidol University, Phuttamonthon 4 Road, Salaya, Nakhon Pathom 73170, Thailand.
Int J Biol Macromol. 2024 Dec;282(Pt 1):137224. doi: 10.1016/j.ijbiomac.2024.137224. Epub 2024 Nov 4.
Pineapple leaf waste, a byproduct of agricultural processes, was used as a novel raw material to synthesize carbon dots (CDs) through a simple hydrothermal method. The CDs were subsequently incorporated into pineapple stem starch (PSS)-based active food packaging films. The characterization of the CDs and PSS-CDs films was conducted using various techniques, including UV-light spectroscopy, fluorescence spectroscopy, and transmission electron microscopy. The results revealed that the CDs measured 2.36 ± 0.33 nm and exhibited antioxidant and antibacterial activities. The addition of the CDs led to notable enhancements in both mechanical strength and UV-barrier properties. Thus, PSS-CDs packaging film was successfully prepared, with the incorporation of CDs enhancing the antioxidant and antimicrobial properties of the film, thereby extending the shelf-life of fresh pork.
菠萝叶废料是农业加工过程中的副产品，被用作一种新型原料，通过简单的水热法合成碳点（CDs）。随后，将这些碳点掺入基于菠萝茎淀粉（PSS）的活性食品包装薄膜中。使用各种技术对碳点和PSS-碳点薄膜进行了表征，包括紫外光谱、荧光光谱和透射电子显微镜。结果表明，碳点的尺寸为2.36±0.33纳米，并具有抗氧化和抗菌活性。碳点的加入显著提高了薄膜的机械强度和紫外线阻隔性能。因此，成功制备了PSS-碳点包装薄膜，碳点的掺入增强了薄膜的抗氧化和抗菌性能，从而延长了新鲜猪肉的保质期。
