Ripening and rheological properties of mango as influenced by ethrel and calcium carbide.
Pal R. K.
Author Affiliation: Division of Fruits and Horticultural Technology, Indian Agricultural Research Institute, New Delhi 110012, India.
Journal of Food Science and Technology (Mysore) 35 : 358-360
Abstract : The effects of Ethrel [ethephon] (500, 1000 or 1500 ppm) and calcium carbide on ripening and textural changes of fruits of mangoes cv. Rataul (grown in India) were investigated. Initiation of ripening was faster in Ethrel- and calcium carbide-treated fruits than in untreated fruits. Fruits treated with Ethrel at 1000 ppm showed the best ripening attributes and sensory quality. Untreated fruits exhibited the highest variation in pulp texture due to uneven ripening. Ripening was initiated from the periphery and proceeded towards the centre. Sensory evaluations indicated that a value of 4-6 N for mean pulp rupture force on ripening was acceptable. Ethrel treatment slightly promoted physiological weight loss. The highest percentage of rotted fruits was observed in the calcium carbide treatment. Ascorbic acid content was reduced in the calcium carbide treatment compared with the others.