Journal of Agricultural Science and Technology
Journal of Agricultural Science and Technology
JAST
Agriculture
http://jast.modares.ac.ir
1
admin
1680-7073
2345-3737
10.22034/jast
en
jalali
1390
12
1
gregorian
2012
3
1
14
2
online
1
fulltext
en
Mathematical Models of Drying Pomegranate Arils in Vacuum and Microwave Dryers
Drying behavior of two types of pomegranates as well as the effect of drying conditions on moisture loss trend and on effective diffusion coefficient of arils are discussed in this article. Also, an appropriate mathematical drying model as well as the activation energy of sweet and sour pomegranate arils, dried in vacuum and microwave driers are pursued and presented. Results of regression analysis of the studied models indicated that Midili and Page models exhibit the best fit to the data obtained for vacuum and microwave drying, respectively. Effective diffusion coefficient of pomegranate arils was estimated in the ranges of 0.74×10-10 to 52.5×10-10 m2 s-1 and 3.43×10-10 to 32.05×10-10 m2 s-1 for vacuum and microwave driers, respectively. Activation energy figures for the vacuum drier were 52.27 and 52.83 kJ while for microwave drier they were 17.22 and 23.83 kJ for the cases of sweet and sour variety pomegranates, respectively.
Drying model,Microwave drier,Pomegranate aril,Vacuum drier
311
325
http://jast.modares.ac.ir/browse.php?a_code=A-10-1000-3138&slc_lang=en&sid=23
S.
Minaei
S.
Minaei
100319475328460045991
100319475328460045991
No
Department of Agricultural Machinery Engineering, College of Agriculture, Tarbiat Modares University, Tehran, Islamic Republic of Iran.
Department of Agricultural Machinery Engineering, College of Agriculture, Tarbiat Modares University, Tehran, Islamic Republic of Iran.
A.
Motevali
A.
Motevali
100319475328460045992
100319475328460045992
Yes
Department of Engineering, Shahre Rey Branch, Islamic Azad University, Tehran, Islamic Republic of Iran.
Department of Engineering, Shahre Rey Branch, Islamic Azad University, Tehran, Islamic Republic of Iran.
E.
Ahmadi
E.
Ahmadi
100319475328460045993
100319475328460045993
No
Department of Food Science and Technology, College of Agriculture, Tarbiat Modares University, Tehran, Islamic Republic of Iran.
Department of Food Science and Technology, College of Agriculture, Tarbiat Modares University, Tehran, Islamic Republic of Iran.
M. H.
Azizi
M. H.
Azizi
100319475328460045994
100319475328460045994
No
Department of Food Science and Technology, College of Agriculture, Tarbiat Modares University, Tehran, Islamic Republic of Iran.
Department of Food Science and Technology, College of Agriculture, Tarbiat Modares University, Tehran, Islamic Republic of Iran.