数字农科院2.0

Application of Methyl Jasmonate to Papaya Fruit Stored at Lower Temperature Attenuates Chilling Injury and Enhances the Antioxidant System to Maintain Quality

文献类型： 外文期刊

作者： Li, Jianhui;Azam, Muhammad;Noreen, Amtal;Umer, Muhammad Ali;Ilahy, Riadh;Akram, Muhammad Tahir;Qadri, Rashad;Khan, Muhammad Arslan;Rehman, Shoaib ur;Hussain, Imtiaz;Lin, Qiong;Liu, Hongru

作者机构：

关键词： MeJA application;papaya quality deterioration;antioxidant activities;reactive oxygen species;sensory traits;extended cold storge

期刊名称： FOODS

ISSN：

年卷期： 2023 年 12 卷 14 期

页码：

收录情况： SCIE（2023版）

摘要： Papaya fruit has a limited shelf life due to its sensitivity to decay and chilling damage during cold storage. The application of methyl jasmonate (MeJA) is known to reduce the incidence of disease and chilling injury, and to maintain the overall quality of the papaya fruit when stored at low temperature. Consequently, the effects of postharvest MeJA (1 mM) immersion on papaya fruits during low-temperature storage (10 & DEG;C & PLUSMN; 2 & DEG;C) for 28 days were studied. The experiment revealed that MeJA treatment significantly decreased the papaya fruit's weight loss, disease incidence, and chilling injury index. Furthermore, the accumulation of malondialdehyde and hydrogen peroxide was markedly lower after the application of MeJA. In addition, MeJA treatment exhibited significantly higher total phenols, ascorbic acid, antioxidant activity, and titratable acidity in contrast to the control. Similarly, MeJA-treated papaya fruits showed higher antioxidant enzymatic activity (superoxide dismutase, catalase, and peroxidase enzymes) with respect to the control fruits. In addition, MeJA reduced the soluble solids content, ripening index, pH, and sugar contents compared to the control fruits. Furthermore, MeJA-treated papaya fruit exhibited higher sensory and organoleptic quality attributes with respect to untreated papaya fruits. These findings suggested that postharvest MeJA application might be a useful approach for attenuating disease incidence and preventing chilling injury by enhancing antioxidant activities along with enhanced overall quality of papaya fruits during low-temperature storage.

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