Journal Of Applied Horticulture ISSN: 0972-1045


T. Shanmugasundaram and K. Haripriya

Department of Horticulture, Faculty of Agriculture, Annamalai University, Annamalainagar-608002, Tamil Nadu, India.

Key words: Banana, post harvest loss, osmotic dehydration, value addition.

Journal of Applied Horticulture, 2014, volume 16, issue 2, pages 141-145.

Abstract: The study was undertaken on osmotic dehydration of banana varieties viz., Poovan (AAB) and Dwarf Cavendish (AAA) to investigate the effect of temperature, sample thickness and osmotic time on the rate of osmosis. The results revealed that the maximum water loss and solid gain after osmosis were 57.9 and 15.5 per cent in Poovan and 53.1 and 11.8 per cent in Dwarf Cavendish. The moisture content of Poovan slices reduced from 2.03 kg H2O kg-1 dry matter (DM) to as low as 0.31kg H2O kg-1 DM when osmosed in 60 ºB syrup at 75 ºC. In case of Dwarf Cavendish, the moisture content reduced from 2.84 to 0.38 kg H2O kg-1 DM under similar conditions. Subsequent air dehydration resulted in further loss of moisture and the moisture content was reduced to a range of 0.03 to 0.18 kg H2O kg-1 DM after 4 to 8 h of drying.

Journal of Applied Horticulture