Physicochemical modification of netted muskmelon during low temperature storage.
Lee H.J., Eum H.L., Lee S.K.
5th International Postharvest Symposium . Volume of Abstract . Verona, Italy 6-11 June 2004. page 11
2004
บทคัดย่อ
Physicochemical modification of netted muskmelon during low temperature storage.
Lipoxygenase activity and membrane lipid composition were assayed on netted muskmelon (cv. Earl
’s Favourite).These were known related to chilling induced softening and cell membrane integrity.Fruits were stored at 2 and 15
°C for 4, 8, 12 and 16 days, then transferred to 20
°C for 2 days.Lipoxygenase activity was increase in hypodermal tissue, but absent in inner-mesocarp tissue.Whereas fruit softening was mainly progressed in inner-mesorcarp tissue.Whereas fruit softening was mainly progressed in inner-mesorcarp tissue.Electrolyte leakage was increased not in hypodermal tissue but inner mesocarp tissue.There was no relationship between lipoxygenase activity and cell membrane integrity in melon fruit.The major fatty acids of cell membrane were linolenic acid and linoleic acid.The ratio of unsaturated to saturated fatty acid also obtained during storage.After rewarnin, ethylene and acetaldehyde production were sharply increased as decomposition products of fatty acid hydroperoxide.However, visible external symptoms of chilling injury were not observed.