l - 00058 - which is turned on by many factors that affect...

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18 Changes Color Chlorophyll " Carotenoids # Flavonols Anthocyanins Changes in flesh and skin color Flavor Organic acid " Tanins " Sugars # # sweeteness " acidity " bitterness Aroma Aroma compounds # Aroma development Texture Nutritive Value Protopectins " (Cell wall) Starch " softening Solublization of Pectins ( break down of cel wal s) # Sugars # Vitamins # Increased bioavailabliity STOP - Photosynthesis - Intake of water, roots - Hormone Transport POST-HARVEST CHANGES CONTINUE - Lost of water - Respiration - Degradation $ Ripening ??? The Ethylene production cycle of fruit can be considered a "switch"
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Unformatted text preview: which is turned on by many factors that affect post harvest handling. Once "turned on" it cannot be "turned off". Climacteric Fruit -Shows an increase of the respiration rate with ripening. This is ethylene dependant and these can continue to ripen after harvesting. Non Climacteric Fruit Their ripening dose not depend on ethylene production. These fruits need to stay on the plant to ripen. Removal of Ethylene from the atmosphere around the climacteric fruits is a way of preventing the over-ripening of Ethylene sensitive fruits. RIPENNING...
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