Islamic Azad University, Department of Horticultural Sciences, Jahrom Branch, Jahrom, Iran.
Islamic Azad University, Department of Biology, Jahrom Branch, Jahrom, Iran.
Braz J Biol. 2023 Oct 13;83:e273886. doi: 10.1590/1519-6984.273886. eCollection 2023.
Small fruits such as strawberries, are a good source of natural antioxidants. In recent decades, many efforts have been made to increase the shelf life of strawberries and maintain its nutritional value in post-harvest conditions. In the present study, the effects of spermine (Spm) and spermidine (Spd) (0, 1.0 and 1.5 mM) on the post-harvest life and quality of strawberry fruits during the 3rd, 6th, and 12th days of storage, were investigated. Applications of Spm and Spd decreased the rate of weight loss, fruit decay, soluble solids content, fruit juice pH and taste index during the storage period in compared to the control. However, titratable acids and vitamin C contents, tissue stiffness, phenolic compounds and antioxidant activity increased in compared to the control. These growth regulators prevented the aging and loss of bioactive compounds of the fruit by increasing the antioxidant activity and preventing the destruction of the fruit tissue. Among the studied treatments, applications of 1.5 mM of Spm and Spd were the most effective treatments to enhance the storage life and quality characters of strawberry fruits.
小水果如草莓，是天然抗氧化剂的良好来源。近几十年来，人们做出了许多努力来延长草莓的货架期并保持其在收获后的营养价值。在本研究中，研究了腐胺（Spm）和亚精胺（Spd）（0、1.0 和 1.5 mM）对草莓果实第 3、6 和 12 天贮藏期间采后寿命和品质的影响。与对照相比，Spm 和 Spd 的应用降低了贮藏期间果实失重率、腐烂率、可溶性固形物含量、果汁 pH 值和口感指数。然而，与对照相比，可滴定酸和维生素 C 含量、组织硬度、酚类化合物和抗氧化活性增加。这些生长调节剂通过提高抗氧化活性和防止果实组织破坏来防止果实老化和生物活性化合物的损失。在所研究的处理中，应用 1.5 mM 的 Spm 和 Spd 是增强草莓果实贮藏寿命和品质特征的最有效处理。
