Balaguera-López Helber E, Espinal-Ruiz Mauricio, Zacarías Lorenzo, Herrera Aníbal O
Departamento de Agronomía, Universidad Pedagógica y Tecnológica de Colombia, Tunja, Colombia.
Departamento de Biología, Universidad del Bosque, Bogotá DC, Colombia.
Food Sci Technol Int. 2017 Jan;23(1):86-96. doi: 10.1177/1082013216658581. Epub 2016 Jul 19.
Cape gooseberry (Physalis peruviana L.) fruits are highly perishable berries that exhibit a climacteric respiratory behavior. The objective of this study was to evaluate the effect of ethylene and the ethylene action inhibitor 1-methylcyclopropene on the postharvest behavior of cape gooseberry fruits (ecotype Colombia). Fruits were treated with ethylene, in an ethephon application (1000 µL L), and pretreated with 1-methylcyclopropene (1 µL L), 1-methylcyclopropene+ethylene, and results compared with a control without application. Subsequently, the fruits were maintained at room temperature (20 ℃, 75% RH) for up to 11 days. The pretreatment of the cape gooseberry fruits with 1-methylcyclopropene delayed most of the ripening-associated parameters, with a reduction in the respiration rate and ethylene production, skin color development, total soluble solids, total carotenoid content, loss of firmness, loss of total titratable acidity and emission of volatile compounds such as ethyl octanoate, ethyl butanoate, ethyl decanoate, and hexyl decanoate. Conversely, application of ethephon accelerated most of these physiological changes and also overcame most of the effects prevented by the ethylene action inhibitor. Altogether, the results supported the idea of a climacteric-like behavior for cape gooseberry fruits and pointing out that the pretreatment with 1-methylcyclopropene may be a promising and efficient postharvest treatment to delay maturity and extend the postharvest period.
灯笼果（酸浆属酸浆）果实是极易腐烂的浆果，表现出呼吸跃变行为。本研究的目的是评估乙烯和乙烯作用抑制剂1-甲基环丙烯对灯笼果（哥伦比亚生态型）采后行为的影响。果实分别用乙烯利（1000μL/L）处理乙烯，并用1-甲基环丙烯（1μL/L）、1-甲基环丙烯+乙烯预处理，结果与未处理的对照进行比较。随后，果实置于室温（20℃，75%相对湿度）下长达11天。用1-甲基环丙烯预处理灯笼果果实延迟了大多数与成熟相关的参数，包括呼吸速率、乙烯产量、果皮颜色发育、总可溶性固形物、总类胡萝卜素含量、硬度损失、总可滴定酸度损失以及挥发性化合物如辛酸乙酯、丁酸乙酯、癸酸乙酯和癸酸己酯的释放。相反，乙烯利处理加速了大多数这些生理变化，也克服了乙烯作用抑制剂所阻止的大多数影响。总之，结果支持了灯笼果果实具有类似呼吸跃变行为的观点，并指出用1-甲基环丙烯预处理可能是一种有前途且有效的采后处理方法，可延迟成熟并延长采后期。
