ABSTRACT

The aim of this study was to investigate the effects of pre-harvest gibberellic acid (GA₃) and calcium chloride (CaCl₂) and post-harvest modified atmosphere packaging (MAP) applications on fruit quality of sweet cherry during the cold storage. At the end of the cold storage, GA₃+CaCl₂ applications in MAP-applied fruit and CaCl₂ in non-MAP-applied fruit significantly delayed weight loss compared to the control. During the cold storage, the decay of CaCl₂-applied fruit has not been observed. At the end of cold storage, the a* and firmness values of the fruit treated with GA₃ and CaCl₂ were significantly higher than the control. The CaCl₂-applied fruit had less soluble solids than the control, but they had significantly higher acidity compared to other applications. In MAP, GA₃- and CaCl₂-applied fruit had higher vitamin C and antioxidant activity values than the control fruit, but their total phenolics were higher. However, the total flavonoids of CaCl₂-applied fruit were higher than the control. On fruit in non-MAP, with GA₃ application, less anthocyanin was obtained compared to the control. As a result, GA₃-treated fruit had a relatively lower bioactive compound content compared to the fruit of the CaCl₂ and control applications both during the harvest and the cold storage. However, it has been revealed that GA₃ and CaCl₂ applications can be used as significant pre-harvest tools to delay the loss of the fruit firmness.

摘要

本研究旨在探讨采前赤霉酸 (GA ₃ ) 和氯化钙 (CaCl ₂ ) 以及采后气调包装 (MAP) 应用对冷藏期间甜樱桃果实品质的影响。在冷藏结束时，与对照相比，在施用了 MAP 的果实中施用 GA ₃ +CaCl ₂和在未施用 MAP 的果实中施用 CaCl ₂显着延迟了减重。在冷藏期间，没有观察到施用CaCl _{2的果实腐烂。}冷藏结束时，GA ₃和CaCl _{2处理过的果实的a*和硬度值}明显高于对照。与对照相比，施用CaCl ₂的水果具有更少的可溶性固体，但与其他应用相比，它们具有显着更高的酸度。在MAP中，施用GA ₃ - 和CaCl ₂的果实比对照果实具有更高的维生素C和抗氧化活性值，但它们的总酚含量更高。_{然而，施用CaCl 2}的果实的总黄酮含量高于对照。在非 MAP 的果实上，使用 GA ₃与对照相比，获得的花青素较少。结果，GA ₃处理的水果与CaCl _{2的水果相比具有相对较低的生物活性化合物含量}在收获和冷藏期间控制应用。然而，据透露，GA ₃和 CaCl ₂应用可用作重要的收获前工具，以延缓果实硬度的损失。