National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
A Computer program in ‘Visual Basic’ language was developed for fenugreek to rapidly determine the drying time and drying rate for a particular temperature and moisture content to minimize the operational problems. The drying was carried out in a tray dryer (Kilburn make Laboratory tray dryer) with heated air at a temperature of 50, 60, 70 °C and its combination. The time to reach equilibrium moisture content decreased with increase in drying air temperature (50°- 70°C). The logarithmic model showed the best fit to the data with high values of coefficient of determination R2 (0.994-0.998) and low χ2, MBE and RMSE values. Results showed, a maximum value of 4.49, 150.4 mg/100g and 1360 mg GAE/100g at 70 °C for rehydration ratio, ascorbic acid, and polyphenols content respectively. However, optimum tray drying at 61 0C with 0.8 g/cm3 loading density shows maximum retention of the same with minimum change in color and shrinkage ratio.
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