Ehtesham Nia Abdollah, Taghipour Shirin, Siahmansour Sara
Department of Horticultural Sciences, Faculty of Agriculture, Lorestan University, Khorramabad, Iran.
Food Chem. 2021 Jun 15;347:129012. doi: 10.1016/j.foodchem.2021.129012. Epub 2021 Jan 9.
The present study evaluated impact of pre-harvest foliar spraying with chitosan (2.0% and 3.0%) and post-harvest Aloe vera gel (AVG) coating (25% and 33%) to determine the quality of table grape during storage. The results showed that both treatments significantly influenced the storage lifetime of this fruit. In addition, the chitosan and AVG combinations minimized the incidence of decay and reduced the weight loss more than that of chitosan, AVG and control samples. 25 days once the foliar application of chitosan 3.0% with AVG 33% coating extending the storage life of fruit up to 15 days by significantly reducing decay index, malondialdehyde, weight loss and polyphenol oxidase also, maintaining the overall quality index, firmness, antioxidant capacity, peroxidase, total phenols, anthocyanin, SSC and vitamin C. Based on the findings, these natural compound treatments could be considered as suitable alternatives to extend the marketable period of table grapes and minimize post-harvest losses.
本研究评估了采前用壳聚糖（2.0%和3.0%）进行叶面喷施以及采后用芦荟凝胶（AVG）涂层（25%和33%）对鲜食葡萄贮藏期间品质的影响。结果表明，两种处理均对该水果的贮藏寿命有显著影响。此外，壳聚糖和AVG组合比壳聚糖、AVG及对照样品更能减少腐烂发生率并降低重量损失。在叶面喷施3.0%壳聚糖并进行33% AVG涂层处理25天后，通过显著降低腐烂指数、丙二醛、重量损失和多酚氧化酶，同时保持整体品质指标、硬度、抗氧化能力、过氧化物酶、总酚、花青素、可溶性固形物和维生素C，水果的贮藏寿命延长了15天。基于这些发现，这些天然化合物处理可被视为延长鲜食葡萄上市期并减少采后损失的合适替代方法。
