Effect of irradiation and storage temperature on quality parameters of Kesar mango ( Mangifera indica L.)
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Effect of irradiation and storage temperature on quality parameters of Kesar mango (Mangifera indica L.) M. K. Yadav • N. L. Patel • S. R. Patel
Received: 23 March 2013 / Accepted: 23 August 2013 / Published online: 12 October 2013 Ó Indian Society for Plant Physiology 2013
Abstract An experiment was carried out to study the effect of irradiation and storage temperatures on quality parameters in Kesar mango fruits. The fruits were exposed to gamma radiation of different doses i.e. 0.00, 0.20, 0.40 and 0.60 kGy) from 60Co source and stored at various storage environment viz., ambient temperature 27 ± 2 °C and RH 60–70 %; temperature 9 °C and RH 90 %; 12 °C and RH 90 % and control atmospheric (CA) storage at 12 °C, O2 2 %, CO2 3 % and RH 90 %. The data indicated that highest total soluble solids, total and reducing sugars and ascorbic acid contend and minimum acidity were noted in 0.40 kGy gamma rays irradiated fruits stored at 12 °C compared to unirradiated fruits stored at ambient condition at ripening stage. Keywords Irradiation Kesar mango Storage temperature Quality parameters
M. K. Yadav (&) Department of Horticulture, N.M. College of Agriculture, Navsari Agricultural University, Dandi Road, Navsari 396450, India e-mail: [email protected] Present Address: M. K. Yadav Mechanized Agriculture Farm, MPUAT Campus, Ummedganj, Kota 01, Rajasthan, India N. L. Patel Department of Fruit Science, ASPEE College of Horticulture and Forestry, Navsari Agricultural University, Dandi Road, Navsari 396450, India S. R. Patel Department of Crop Physiology, Soil and Water Management Research Unit, Navsari Agricultural University, Dandi Road, Navsari 396450, India
The major objective of a postharvest technology is to identify a method by which decline in produce quality is controlled as much as possible during the stage between harvest to consumption. As fruit also remain alive after harvesting it is necessary to restrain their respiration and metabolic activity in order to increase shelf life and optimize post harvest quality by delayed ripening and senescence. To overcome these metabolic activities, innovation in irradiation and cold storage are the tools for the enhancement of quality parameters and health promoting components in most of climacteric fruits. Mango (Mangifera indica L.; family Anacardiacae) is a tropical climacteric fruit, which ripen rapidly after harvest. Mango is generally harvested when physiologically mature and is allowed to ripen under suitable conditions of temperature and humidity. Therefore, if freshly harvested fruit is allowed to ripen under normal ambient conditions (between 22–32 °C and 40–65 % RH), ripening processes increase rapidly within the week leading to deterioration of quality. Mango is susceptible to chilling injury and an optimum temperature of 12–13 °C is generally recommended for storage (Gomez-Lim 1993; Yimyong et al. 2011). Irradiation is a physical process for the treatment of foods. It reduces microbial activity and thus prevents food poisoning, r
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