Response of ‘Numdokmai’ mangoes to Hot and Cool Air Treatments
S. Photchanachai, T. Boonchoo and D. Loyma
Book of Abstracts, Asia-Pacific Symposium on Assuring Quality and Safety of Agri-Foods, August 4-6, 2008, Radisson Hotel, Bangkok, Thailand.
2008
บทคัดย่อ
Response of ‘Numdokmai’ mangoes to Hot and Cool Air Treatments
Temperature of mango fruit cv. Namdokmai (1.0 cm depth from the surface) during hot air treatment at 40 and 50°C and then cooling by cool air at 13°C is investigated. The fruit exposed to 50°C shows a rapid increase in temperature within 60 min. The temperature gradually increases to 33.8°C at 150 min. The rapid increase of mango temperature exposed at 40°C is found during 30-60 min subsequence of slow increase of temperature to 29.9°C at 150 min. The reduction behavior of temperature of the hot air treated mangoes by cool air treatment at 13°C reveals a linear curve. The reduction rate of mango with initial temperature at 33.8°C is y = -0.1438x + 32.783) whereas the mango with 29.9°C is (y = -0.1245x + 29.461). the mango temperature achieves to 11.1-12.0°C within 150. The hot air treatments do not effect to water loss and other qualities of the mangoes compared to the untreated fruit during storage for 15 days at 13°C. The disease incidence is significantly lower the hot air treated mangoes than that in the untreated fruit.