Paper Title :Improvement of Cold Storage Conditions of Garden Plum (Prunus Domestica) by Application of Ascorbic Acid, Salicylic Acid and Methyl Jasmonate

Author :Tamar Turmanidze, Levan Gulua, Merab Jgenti, Lika Nikolaishvili

Article Citation :Tamar Turmanidze ,Levan Gulua ,Merab Jgenti ,Lika Nikolaishvili , (2018 ) " Improvement of Cold Storage Conditions of Garden Plum (Prunus Domestica) by Application of Ascorbic Acid, Salicylic Acid and Methyl Jasmonate " , International Journal of Advances in Science, Engineering and Technology(IJASEAT) , pp. 22-25, Volume-6, Issue-3

Abstract : Plums were harvested in the middle summer in eastern part of Georgia. After harvesting average samples of fruits were treated with combined water solution (CS) of ascorbic acid (0.5%), salicylic acid (0.03%) and methyl jasmonate (0.02%). Data showed that treatment with CS caused significant retention of polyphenols degradation process during storage period. Four main anthocyanins were identified in plum fruits: Cyanidin-3-O-glucoside, Cyanidin-3-O-rutinoside, Peonidin- 3-O-rutinoside and Peonidin-3-O-glucoside. Anthocyanins amount in fresh fruits was 68.29±3.41 mg 100g-1. After 22 days storage their content degraded down to 24.54±1.22 mg 100g-1and 48.58±2.42 mg 100g-1in the control and treated samples respectively. Antioxidant activity of fresh plum fruits was equal to 345.20±17.26 mg equivalents of vitamin-C per 100 g of fruits. During storage this value decreased to 228.29±11.41 and 270.58±1 mg equivalents of vitamin-C per 100 g of fruits for control and treated samples respectively. After 22 days storage period TSS of fruits decreased from 13.71±0.68% to 11.23±0.56% in control samples and to 12.56±0.62% in treated samples probably because of respiration process. Difference between the treated and untreated samples after 22 days was statistically significant (p<0.05). Keywords - Plum, biochemical compounds, storage.

Type : Research paper

Published : Volume-6, Issue-3

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