화학공학소재연구정보센터
Korean Journal of Chemical Engineering, Vol.30, No.6, 1201-1206, June, 2013
Freeze drying of quince (Cydonia oblonga): Modelling of drying kinetics and characteristics
E-mail:
Drying kinetics of quince (Cydonia oblonga) in mashed form was investigated in a pilot scale freeze dryer. Experiments were conducted in various operating conditions, and the effects of initial moisture content, heat load power and the initiation time of heat application were investigated on drying rate and performance of the dryer. The experimental data of the moisture changes were correlated through non-linear regression and an appropriate mathematical model was obtained. The drying kinetics of the sample was determined on the basis of the pre-identified mathematical models as a function of operating parameters. The obtained values of mean relative percent deviation for the kinetics models of the primary and secondary drying stages are 7.47% and 5.94%, respectively. It is revealed that by applying a high heat load power at the beginning of the process the drying time is reduced significantly.
  1. Liapis AI, Pim ML, Bruttini R, Dry. Technol., 14, 1265 (1996)
  2. Koroishi ET, Boss EA, Wolf Maciel MR, Maciel Filho R, J. Food Process. Eng., 32, 425 (2009)
  3. Chakraborty R, Saha AK, Bhattacharya P, Sep. Purif. Technol., 49(3), 258 (2006)
  4. Hammami C, Rene F, J. Food Eng., 32(2), 133 (1997)
  5. Marques LG, Ferreira MC, Freire JT, Chem. Eng. Process., 46(5), 451 (2007)
  6. Krokida MK, Philippopoulos C, J. Food Eng., 73, 135 (2006)
  7. Pikal MJ, Shah S, Roy ML, Putman R, Int. J. Pharm., 60, 203 (1990)
  8. Sadikoglu H, Ozdemir M, Seker M, Dry. Technol., 24, 849 (2006)
  9. Hottot A, Andrieu J, Vessot S, Dry. Technol., 25, 753 (2007)
  10. Shishehgarha F, Makhlouf J, Ratti C, Dry. Technol., 20, 131 (2002)
  11. Marques LG, Freire JT, Dry. Technol., 23, 2169 (2005)
  12. Kirmaci V, Usta H, Menlik T, Dry. Technol., 26, 1570 (2008)
  13. Daoussi R, Vessot S, Andrieu J, Monnier O, Chem. Eng. Res. Des., 87(7A), 899 (2009)
  14. Chakraborty R, Bera M, Mukhopadhyay P, Bhattacharya P, Sep. Purif. Technol., 80(2), 375 (2011)
  15. Mellor JD, Bell GA, “Freeze-drying,” Encyclopedia of food sciences and nutrition, Caballero B, Trugo LC, Finglas PM, eds., Academic Press Elsevier Science Ltd., Oxford, UK (2003)
  16. Oetjen GW, Freeze-drying, Wiley-VCH, Weinheim, Germany (1999)
  17. Garcia-Pascual P, Sanjuan N, Melis R, Mulet A, J. Food Eng., 72, 346 (2006)