Vol. 2 (3) : May-June 2011 issue
Green Farming Vol. 2 (3) : 366-368 (May-June, 2011) (New Series)
Mathematical modeling of hot air-drying of Aloe vera
P.S. PISALKARa1*, N.K. JAINb2, R.S. ROOPA BAIc3, R.P. MURUMKARd4 and S.K. JAINe5
aAgro Product Development Research Centre, Dr. P.D. Krishi Vidyapeeth, Akola - 444 104 (M.S.)
bAICRP on Post Harvest Technology, eDeptt. of Processing & Food Engg., M.P.U.A.T., Udaipur - 313 001 (Raj.)
cDeptt. of Agric. Processing and Food Engineering, Univ. of Agriculture Sciences, Raichur - 584 101 (Karnataka)
dKrishi Vigyan Kendra, Sakoli, Bhandara - 441 802 (Maharashtra)
Designation : 1Sr. Research Fellow, 2Associate Professor, 3Research Associate, 4Assistant Professor, 5Subjet Matter Specialist *Correspondence
Subject : Food Science, Preservation & Processing, Protectants & Infestation and Post-harvest Technology
Paper No. :
Total Pages : 3
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Revised accepted :
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Citation :
P.S. PISALKAR, N.K. JAIN, R.S. ROOPA BAI, R.P. MURUMKAR and S.K. JAIN. 2011. Mathematical modeling of hot air-drying of Aloe vera. Green Farming Vol. 2 (3) : 366-368 (May-June, 2011) (New Series)
ABSTRACT
Experiments were conducted to study the mathematical modelling of Aloe vera (Aloe barbadensis M.) drying. Drying tests were performed in the laboratory scale dryer with various temperatures (50, 60, 70 and 80 ºC) at a constant air velocity of 1.5 m/s. Drying to 2 to 4% (db) moisture content in the dryer took about 450, 420, 270 and 180 min at air temperatures of 50, 60, 70 and 80 ºC, respectively. Exponential model, Page model, Logarithmic model and Power law models were compared based on the standard error of estimation (SEE) and correlation of determination (R2) to estimate drying curves. It was concluded that Page model describes the dehydration behaviour of Aloe vera.
Key words :
Air-drying, Aloe vera, Aloe barbadensis, Mathematical modeling.
