BioNanocomposite Research Center, Department of Food and Nutrition, Kyung Hee University, Seoul 02447, South Korea.
Functional Ecology and Environment Engineering Laboratory, Faculty of Science and Technology, Sidi Mohamed Ben Abdellah University, Imouzzer Street, B.P. 2202, Fez 30050, Morocco.
Int J Biol Macromol. 2024 Oct;278(Pt 2):134859. doi: 10.1016/j.ijbiomac.2024.134859. Epub 2024 Aug 18.
Strawberry fruits are popular all over the world due to their rich organoleptic properties and enormous health benefits. However, it is highly susceptible to postharvest spoilage due to various factors, including moisture loss, nutrient oxidation, and microbial spoilage. Recently, various researchers have studied the effect of chitosan-based flexible films and surface coatings on the shelf life of strawberries. Despite various reviews providing general information on the effects of chitosan-based films and coatings on various food products, no review has focused solely on their effects on postharvest preservation and the shelf life of strawberries. The purpose of this review is to summarize the current research on chitosan-based formulations for extending the shelf life of strawberries. Chitosan, a cationic carbohydrate polymer, possesses excellent properties such as film formation, mechanical strength, non-toxicity, biodegradability, edibility, UV-blocking ability, antioxidant activity, and antibacterial functionality, justifying its potential as packaging/coating material for fresh agricultural products, including strawberries. This review covers the various factors responsible for strawberry spoilage and the properties of chitosan that help counteract these factors. Additionally, the advantages of chitosan-based preservation technology compared to existing strawberry preservation methods were explained, efficiency was evaluated, and future research directions were suggested.
草莓因其丰富的感官特性和巨大的健康益处而在世界各地广受欢迎。然而,由于各种因素,包括水分流失、营养氧化和微生物腐烂,草莓在收获后极易变质。最近,各种研究人员研究了壳聚糖基柔性薄膜和表面涂层对草莓货架期的影响。尽管有各种评论提供了关于壳聚糖基薄膜和涂层对各种食品的影响的一般信息,但没有评论专门关注它们对草莓收获后保鲜和货架期的影响。本综述的目的是总结壳聚糖基配方在延长草莓货架期方面的最新研究进展。壳聚糖是一种阳离子碳水化合物聚合物,具有成膜性、机械强度、无毒、可生物降解、可食用、紫外线阻挡能力、抗氧化活性和抗菌功能等优异性能,是草莓等新鲜农产品包装/涂层材料的理想选择。本综述涵盖了导致草莓变质的各种因素以及壳聚糖的特性,这些特性有助于对抗这些因素。此外,还解释了壳聚糖基保鲜技术与现有草莓保鲜方法相比的优势,评估了其效率,并提出了未来的研究方向。