Fatima Saeeda, Khan Muhammad Rehan, Ahmad Imran, Sadiq Muhammad Bilal
Kauser Abdulla Malik School of Life Sciences, Forman Christian College (A Chartered University), Lahore, 54600, Pakistan.
Department of Agricultural Science, University of Naples Federico II, Via Università 133, 80055, Portici, NA, Italy.
Heliyon. 2024 Mar 8;10(6):e27453. doi: 10.1016/j.heliyon.2024.e27453. eCollection 2024 Mar 30.
This study reviews the importance of resistant starch (RS) as the polymer of choice for biodegradable food packaging and highlights the RS types and modification methods for developing RS from native starch (NS). NS is used in packaging because of its vast availability, low cost and film forming capacity. However, application of starch is restricted due to its high moisture sensitivity and hydrophilic nature. The modification of NS into RS improves the film forming characteristics and extends the applications of starch into the formulation of packaging. The starch is blended with other bio-based polymers such as guar, konjac glucomannan, carrageenan, chitosan, xanthan gum and gelatin as well as active ingredients such as nanoparticles (NPs), plant extracts and essential oils to develop hybrid biodegradable packaging with reduced water vapor permeability (WVP), low gas transmission, enhanced antimicrobial activity and mechanical properties. Hybrid RS based active packaging is well known for its better film forming properties, crystalline structures, enhanced tensile strength, water resistance and thermal properties. This review concludes that RS, due to its better film forming ability and stability, can be utilized as polymer of choice in the formulation of biodegradable packaging.
本研究回顾了抗性淀粉（RS）作为可生物降解食品包装首选聚合物的重要性，并强调了RS的类型以及从天然淀粉（NS）开发RS的改性方法。NS因其广泛可得、成本低和成膜能力而被用于包装。然而，由于淀粉具有高湿度敏感性和亲水性，其应用受到限制。将NS改性为RS可改善成膜特性，并将淀粉的应用扩展到包装配方中。淀粉与其他生物基聚合物（如瓜尔豆胶、魔芋葡甘露聚糖、卡拉胶、壳聚糖、黄原胶和明胶）以及活性成分（如纳米颗粒（NPs）、植物提取物和精油）混合，以开发具有降低的水蒸气透过率（WVP）、低气体透过率、增强的抗菌活性和机械性能的混合可生物降解包装。基于混合RS的活性包装以其更好的成膜性能、晶体结构、增强的拉伸强度、耐水性和热性能而闻名。本综述得出结论，由于RS具有更好的成膜能力和稳定性，它可作为可生物降解包装配方中的首选聚合物。
