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
1393
4
1
gregorian
2014
7
1
16
4
online
1
fulltext
en
Mathematical Modeling of Heat Transfer and Sterilizing Value Evaluation during Caviar Pasteurization
In this study, a numerical model was developed to investigate the two-dimensional heat transfer in a homogenous finite cylinder to predict the local temperature and sterilizing value during caviar pasteurization. A fixed grid finite difference method was used in the solution of heat transfer equations according to Crank-Nicolson’s scheme. The model was validated by comparison of the experimental temperature profiles during caviar pasteurization with the model predicted values (Correlation Coefficient> 0.99 and Root Mean Square Errors< 0.61ºC). The cold spot location was at the radial center between the middle and top of the jar on the vertical axis. For caviar pasteurization, the required heating time for cold spot to reach the desired <em>F</em>-value (= 0.19 min) was 128 minutes at 55°C and 37.63 minutes at 65°C. The results indicated that the developed model could be successfully applied to simulate the caviar thermal processing.
Crank-Nicolson’s scheme,Thermal lethality
827
839
http://jast.modares.ac.ir/browse.php?a_code=A-23-1000-3175&slc_lang=en&sid=23
M.
Khakbaz Heshmati
M.
Khakbaz Heshmati
100319475328460051651
100319475328460051651
Yes
Department of Food Science and Technology, College of Agriculture, Isfahan University of Technology
Department of Food Science and Technology, College of Agriculture, Isfahan University of Technology
M.
Shahedi
M.
Shahedi
100319475328460051650
100319475328460051650
No
Department of Food Science and Technology, College of Agriculture, Isfahan University of Technology
Department of Food Science and Technology, College of Agriculture, Isfahan University of Technology
N.
Hamdami
N.
Hamdami
100319475328460051648
100319475328460051648
No
Department of Food Science and Technology, College of Agriculture, Isfahan University of Technology
Department of Food Science and Technology, College of Agriculture, Isfahan University of Technology
M. A.
Hejazi
M. A.
Hejazi
100319475328460051576
100319475328460051576
No
Branch for the Northwest and West Region, Agricultural Biotechnology Research Institute of Iran (ABRII), Tabriz, I. R. Iran.
Branch for the Northwest and West Region, Agricultural Biotechnology Research Institute of Iran (ABRII), Tabriz, I. R. Iran.
A. A.
Motalebi
A. A.
Motalebi
100319475328460051572
100319475328460051572
No
Iranian Fisheries Research Organization, Tehran 141556116, I.R. Iran.
Iranian Fisheries Research Organization, Tehran 141556116, I.R. Iran.
A.
Nasirpour
A.
Nasirpour
100319475328460051570
100319475328460051570
No
Department of Food Science and Technology, College of Agriculture, Isfahan University of Technology, Isfahan 84156, I. R.Iran.
Department of Food Science and Technology, College of Agriculture, Isfahan University of Technology, Isfahan 84156, I. R.Iran.