Modeling and evaluation of lowtemperature racuum drying of Gardenia yellow pigment

LIU Wei, HUANG Lixin*,ZHANG Caihong, XIE Pujun, A S Mujumdar*

Journal of Nanjing Forestry University (Natural Sciences Edition) ›› 2011, Vol. 35 ›› Issue (05) : 95-98.

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Journal of Nanjing Forestry University (Natural Sciences Edition) ›› 2011, Vol. 35 ›› Issue (05) : 95-98. DOI: 10.3969/j.jssn.1000-2006.2011.05.021

Modeling and evaluation of lowtemperature racuum drying of Gardenia yellow pigment

  • LIU Wei1,2, HUANG Lixin1,2*,ZHANG Caihong1,2, XIE Pujun1,2, A S Mujumdar*
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Abstract

The test was performed with the heating temperature of 45 ℃, the vacuum level of 008 MPa, solution thickness of 7 mm and the solution mass concentration of 20 %. The drying kinetics for lowtemperature vacuum drying of Gardenia yellow pigment solution were studied. Eight frequentlyused mathematical models in describing the characteristics of thinlayer drying were simulated using Matlab. The simulation results showed that Page model gave the best prediction. Validation experiment also showed that Page model could describe and predict the relationship between the moisture ratio and drying time for lowtemperature vacuum drying of Gardenia yellow pigment solution very well.

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LIU Wei, HUANG Lixin*,ZHANG Caihong, XIE Pujun, A S Mujumdar*. Modeling and evaluation of lowtemperature racuum drying of Gardenia yellow pigment[J]. Journal of Nanjing Forestry University (Natural Sciences Edition). 2011, 35(05): 95-98 https://doi.org/10.3969/j.jssn.1000-2006.2011.05.021

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