Kibar Hakan, Kibar Beyhan, Turfan Nezahat
Department of Seed Science and Technology, Faculty of Agriculture Bolu Abant Izzet Baysal University Bolu Türkiye.
Department of Horticulture, Faculty of Agriculture Bolu Abant Izzet Baysal University Bolu Türkiye.
Food Sci Nutr. 2023 Nov 27;12(3):1686-1705. doi: 10.1002/fsn3.3862. eCollection 2024 Mar.
To extend the postharvest storage life of broccoli samples ( L. var. ), an exogenous application of citric acid (CA), salicylic acid (SA), and putrescine (PUT) was tested in multiple combinations (0.5 and 1 mM) at 4 ± 0.5°C and 90 ± 5% relative humidity (RH) for 21 days (d). The weight loss (WL), respiration rate (RR), total soluble solids (TSS), pH, color (*, *, *, chroma, and hue angle), proximate and mineral contents, phenolic and flavonoid contents, and other biochemical properties of the treated and untreated broccoli samples were evaluated throughout the storage duration. The lowest WL was observed when exposed to 0.5 mM of PUT. 1 mM CA and PUT treatments were affected by RR, depending on storage conditions. The lowest TSS content was observed in broccoli samples treated with 0.5 mM CA among all treatments. The chroma value of the samples was preserved by the 0.5 mM SA treatment. The most abundant element in broccoli samples was potassium in the control application, followed by a 1 mM SA treatment. In addition, the protein content was the highest in the 1 mM PUT treatment. The highest vitamin C was determined in the 1 mM CA treatment, and the most abundant vanillic acid was found in broccoli exposed to the 0.5 mM and treatment. Glucose content was determined at the lowest level in the 0.5 mM SA treatment, while higher increases occurred in other treatments. In terms of these findings, 1 mM CA, 1 mM SA, and 1 mM PUT delay WL, RR, and color degradation and prolong the storage life of broccoli samples stored at 4 ± 0.5°C. It was concluded that the biochemical content, fresh weight, and green color of broccoli samples throughout postharvest and storage can be maintained longer by exogenous application of these natural compounds. Therefore, we recommend 1 mM PUT and 1 mM CA treatments to maintain the quality of broccoli by minimizing losses in morphological properties, mineral, and biochemical compositions during postharvest storage.
为延长西兰花样本（L. var.）的采后储存期，在4±0.5°C和90±5%相对湿度（RH）条件下，对柠檬酸（CA）、水杨酸（SA）和腐胺（PUT）的多种组合（0.5和1 mM）进行了21天（d）的外源施用测试。在整个储存期间，对处理和未处理的西兰花样本的失重（WL）、呼吸速率（RR）、总可溶性固形物（TSS）、pH值、颜色（、、*、色度和色相角）、近似成分和矿物质含量、酚类和黄酮类含量以及其他生化特性进行了评估。暴露于0.5 mM PUT时观察到最低的失重。1 mM CA和PUT处理受呼吸速率影响，具体取决于储存条件。在所有处理中，0.5 mM CA处理的西兰花样本中观察到最低的总可溶性固形物含量。0.5 mM SA处理可保持样本的色度值。在对照处理中，西兰花样本中最丰富的元素是钾，其次是1 mM SA处理。此外，1 mM PUT处理中的蛋白质含量最高。1 mM CA处理中维生素C含量最高，0.5 mM和处理的西兰花中香草酸含量最丰富。0.5 mM SA处理中葡萄糖含量测定为最低水平，而其他处理中葡萄糖含量增加较高。基于这些发现，1 mM CA、1 mM SA和1 mM PUT可延缓失重、呼吸速率和颜色降解，并延长在4±0.5°C储存的西兰花样本的储存期。得出的结论是，通过外源施用这些天然化合物，可以更长时间地保持西兰花样本在采后和储存期间的生化含量、鲜重和绿色。因此，我们建议采用1 mM PUT和1 mM CA处理，通过尽量减少采后储存期间形态特性、矿物质和生化成分的损失来保持西兰花的品质。
