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 study was conducted for drying of tomatoes in the developed solar drier at three different air velocities of 2 m/s, 3 m/s, 4 m/s respectively. The samples were given pre-treatment with KMS+CaCl2 and NaCl. Open sun drying was carried out simultaneously on the other side and was taken as control. The final moisture content of 7.1 per cent (w.b.) was achieved after drying for 10 hours at the air velocity of 3 m/s whereas it was 16.7 per cent (w.b.) and 23.9 per cent (w.b.) at 2 m/s and 4 m/s respectively. The moisture content of tomato under sun drying was 39.1 per cent (w.b.) at the 10th hour. It was found that samples pre-treated with KMS+CaCl2 achieved the final moisture content of 7.1 per cent (w.b.) within 10 hours. Samples treated with KMS+CaCl2 showed a higher drying rate of 1.68 g/min and 1.60 g/min for NaCl. The untreated sample showed the drying rate of 1.52 g/min and the open sun drying method had the minimum drying rate of 1.16 g/min. It was found that the KMS+CaCl2 treated samples recorded maximum drying rate at a velocity of 3 m/s.
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