Department of Agroindustrial Science and Technology, Federal University of Pelotas, Pelotas, RS, 96010-900, Brazil.
State University of Santa Catarina, Campus Pinhalzinho, Pinhalzinho/SC, 89870-000, Brazil.
Carbohydr Polym. 2021 Aug 1;265:118068. doi: 10.1016/j.carbpol.2021.118068. Epub 2021 Apr 12.
Electrospinning is a versatile, inexpensive and reliable technique for the synthesis of nanometric fibers or particles from polymeric solutions, under a high voltage electric field. The use of natural polysaccharides such as starch, chitosan, pectin, alginate, pullulan, cellulose and dextran as polymeric materials allows the formation of biodegradable fibers and capsules. Bioactive compounds extracted from natural sources, such as essential oils, have been widely studied due to their antioxidant, antimicrobial and antifungal properties. The combination of natural polymers and the electrospinning technique allows the production of structures capable of incorporating these bioactive compounds, which are highly sensitive to degradation reactions. This review describes several approaches to the development of nanofibers and nanocapsules from polysaccharides and the possibility of incorporating hydrophobic compounds, such as essential oils. The review also discusses the use of electrosprayed products incorporated with essential oils for direct application in food or for use as active food packaging.
静电纺丝是一种通用、廉价且可靠的技术，可在高压电场下从聚合物溶液中合成纳米纤维或颗粒。使用天然多糖（如淀粉、壳聚糖、果胶、藻酸盐、普鲁兰、纤维素和右旋糖酐）作为聚合物材料，可以形成可生物降解的纤维和胶囊。从天然来源提取的生物活性化合物，如精油，由于其抗氧化、抗菌和抗真菌特性，已经得到了广泛的研究。天然聚合物和静电纺丝技术的结合可以生产出能够结合这些生物活性化合物的结构，这些化合物对降解反应非常敏感。本文综述了几种从多糖制备纳米纤维和纳米胶囊的方法，以及将疏水性化合物（如精油）纳入其中的可能性。本文还讨论了将含有精油的电喷雾产品用于直接应用于食品或用作活性食品包装的情况。
