School of Perfume and Aroma Technology, Shanghai Institute of Technology, 201418 Shanghai, China.
School of Perfume and Aroma Technology, Shanghai Institute of Technology, 201418 Shanghai, China.
Int J Biol Macromol. 2023 Dec 31;253(Pt 5):127161. doi: 10.1016/j.ijbiomac.2023.127161. Epub 2023 Sep 29.
A novel multifunctional soy protein isolate-carboxymethyl cellulose (SPI-CMC) based nanocomposite film was successfully prepared by introducing the polydopamine encapsulated essential oils (EOs@PDA) nanocapsules for food packaging. The EOs@PDA nanocapsules possessed smooth spherical morphology with good dispersion, and the particle size was about 283 nm. The influence of EOs@PDA nanocapsules on the physical, chemical and biological properties of EOs@PDA/SPI-CMC nanocomposite film was investigated. The EOs@PDA nanocapsules were crosslinked with SPI-CMC matrix and distributed uniformly in the matrix. The nanocomposite film with 1 wt% nanocapsules (EP/S-C) also showed excellent antioxidant activity (66.6 ± 0.3 % on DPPH and 98.6 ± 0.1 % on ABTS), superior UV-blocking properties (100 %), advanced antibacterial ability against E. coli and S. aureus, favorable biodegradability (>90 %) and relatively low In vitro cytotoxicity. Also, the EP/S-C nanocomposite film displayed potential to extend the shelf life of fresh cut apple slices (>24 h), perishable cherry tomatoes and blueberries (>6 days). The results suggested that the EOs@PDA/SPI-CMC nanocomposite film had a great possibility in the field of biodegradable and antimicrobial materials for food packaging.
一种新型的多功能大豆分离蛋白-羧甲基纤维素（SPI-CMC）基纳米复合膜通过引入载有精油（EOs@PDA）纳米胶囊的聚多巴胺封装的纳米胶囊成功制备，用于食品包装。EOs@PDA 纳米胶囊具有光滑的球形形态，分散性良好，粒径约为 283nm。研究了 EOs@PDA 纳米胶囊对 EOs@PDA/SPI-CMC 纳米复合膜物理、化学和生物性能的影响。EOs@PDA 纳米胶囊与 SPI-CMC 基质交联，均匀分布在基质中。纳米复合膜中添加 1wt%纳米胶囊（EP/S-C）也表现出优异的抗氧化活性（DPPH 清除率为 66.6±0.3%，ABTS 清除率为 98.6±0.1%），优异的紫外线阻隔性能（100%），对大肠杆菌和金黄色葡萄球菌的抗菌能力先进，良好的生物降解性（>90%）和相对较低的体外细胞毒性。此外，EP/S-C 纳米复合膜具有延长鲜切苹果片（>24h）、易腐樱桃番茄和蓝莓（>6 天）货架期的潜力。结果表明，EOs@PDA/SPI-CMC 纳米复合膜在可生物降解和抗菌食品包装材料领域具有很大的可能性。
