Postharvest Application of Methyl Jasmonate for Improving Quality Retention of Agaricus bisporus Fruit Bodies
| Autor: | Demei Meng, Jiping Sheng, Xinhua Zhang, Tianzi Song, Lin Shen |
|---|---|
| Rok vydání: | 2012 |
| Předmět: |
Antioxidant
Agaricus medicine.medical_treatment Carbohydrates Cyclopentanes Acetates Real-Time Polymerase Chain Reaction Polyphenol oxidase Antioxidants Superoxide dismutase chemistry.chemical_compound Phenols Food Preservation medicine Browning Oxylipins Food science Flavonoids Methyl jasmonate biology Superoxide Dismutase Temperature General Chemistry Catalase Maillard Reaction Food Storage chemistry Biochemistry biology.protein Postharvest Dietary Proteins General Agricultural and Biological Sciences Catechol Oxidase Agaricus bisporus |
| Zdroj: | Journal of Agricultural and Food Chemistry. 60:6056-6062 |
| ISSN: | 1520-5118 0021-8561 |
| DOI: | 10.1021/jf3006454 |
| Popis: | The influence of methyl jasmonate (MeJA) on postharvest quality and enzyme activities, gene expression level, and the functional component content linked to postharvest deterioration in Agaricus bisporus (J.E. Lange) Imbach fruit bodies was investigated. Freshly harvested fruit bodies were treated with 0 (control), 10 and 100 μM MeJA vapor at 20 °C for 12 h and then stored at 10 °C for up to 7 days. The results indicated that treatments with 100 μM MeJA vapor maintained a high level of soluble protein and total sugar, delayed browning, promoted the accumulation of phenolics and flavonoids, and inhibited the increase of respiratory rate and membrane leakage. Furthermore, 100 μM MeJA inhibited the activities of polyphenoloxidase, increased the antioxidant enzymes activities of catalase and superoxide dismutase, and lowered relative expression levels of three genes encoding polyphenol oxidase (AbPPO1, AbPPO2, and AbPPO3) throughout the storage period. Comparatively, 10 μM MeJA also had a clear beneficial effect on postharvest mushroom quality maintenance but was not as effective as 100 μM MeJA treatment. These findings suggest that application of MeJA could have potential in maintaining the quality of harvested A. bisporus fruit bodies. |
| Databáze: | OpenAIRE |
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