ISHS Acta Horticulturae 269: Symposium on Tropical Fruit in International Trade
RESPIRATION RATE, ETHYLENE PRODUCTION AND SKIN COLOUR CHANGE OF PAPAYA AT DIFFERENT TEMPERATURES |
| Author: | P.F. Lam |
| Abstract:
Papaya fruit of a large fruited variety were kept at 5°C, 10°C, 15°C or 25°C for 23 days, 14 days, 30 days and 11 days respectively. The fruit from 5°C, 10°C and 15°C were then transferred to a ripening temperature of 25°C for 10 days, 7 days and 3 days. The respiration rate, ethylene production and skin colour were studied daily. Papaya fruit has a respiration rate of 4 ml carbon dioxide/kg/h at 5°C, and of 10 ml carbon dioxide/kg/h at 10°C and 15°C. The ethylene production was less than 0.1 ul/kg/h at 5°C but increases with an increase in storage temperature. Those stored at 5°C for 23 days or at 15°C for 30 days, and then transferred to 25°C ripened abnormally. Fruit stored at 10°C for 14 days and then transferred to 25°C ripened normally after 4 days. Papaya kept at 25°C for 11 days ripened normally during storage. | |
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