Effect of air velocity on kinetics of thin layer carrot pomace drying

• Autores: N. Kumar, B.C. Sarkar, H.K. Sharma
• Localización: Food science and technology international = Ciencia y tecnología de alimentos internacional, ISSN-e 1532-1738, ISSN 1082-0132, Vol. 17, Nº 5, 2011, págs. 459-470
• Idioma: inglés
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• Resumen

  • Carrot pomace is a by-product obtained during carrot juice processing. Thin layer carrot pomace drying was performed in a laboratory scale hot air forced convective dryer. The drying experiments were carried out at the air velocity of 0.5, 0.7 and 1.0?m/s at air temperatures from 60 to 75 °C. It was observed that whole drying process of carrot pomace took place in a falling rate period except a very short accelerating period at the beginning. Mathematical models were tested to fit drying data of carrot pomace. The best fit model was observed on the basis of R2, Chi-square and RMSE values. R2 values for all the selected models were above 0.9783. The average values of effective diffusivity ranged from 2.61?×?10-9 to 3.64?×?10-9?m2/s.