Articles
EFFECT OF POSTHARVEST ANTI-OXIDANT TREATMENTS ON LOQUAT FRUIT DETERIORATION DURING STORAGE AT ROOM TEMPERATURE
Article number
1092_26
Pages
173 – 179
Language
English
Abstract
As a result of physiological changes and senescence, susceptibility of loquat fruit to postharvest diseases increases during storage at room temperature.
The present study investigated the effects of postharvest anti-oxidant treatments on the physiological changes and the incidence of decay during storage at room temperature.
Fresh-picked loquat fruit were treated with four solutions, tap water (control), 5 mM salicylic acid (SA), 2000 ppm ascorbic acid (AsA) and 5 mM citric acid (CA). All fruit were dipped into the above solutions for 5 min, air dried and stored under room conditions (18±2°C and 55% RH). Respiration rate, total soluble solids (TSS), titratable acidity (TA), flesh firmness, weight loss and decay were evaluated at three-day intervals until decayed fruit reached more than 50%. The results showed that postharvest treatments with anti-oxidants (especially SA) slowed down the respiration rate and weight loss, and maintained higher levels of flesh firmness.
The present study investigated the effects of postharvest anti-oxidant treatments on the physiological changes and the incidence of decay during storage at room temperature.
Fresh-picked loquat fruit were treated with four solutions, tap water (control), 5 mM salicylic acid (SA), 2000 ppm ascorbic acid (AsA) and 5 mM citric acid (CA). All fruit were dipped into the above solutions for 5 min, air dried and stored under room conditions (18±2°C and 55% RH). Respiration rate, total soluble solids (TSS), titratable acidity (TA), flesh firmness, weight loss and decay were evaluated at three-day intervals until decayed fruit reached more than 50%. The results showed that postharvest treatments with anti-oxidants (especially SA) slowed down the respiration rate and weight loss, and maintained higher levels of flesh firmness.
Publication
Authors
M.Z. Sultan, S.M. Khalefa, S.M. Elhamamsy, Y.S. Mostafa
Keywords
salicylic acid, decay, weight loss, respiration, postharvest diseases
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