ACCELERATED DRYING AND STABILIZATION OF CANOLA SEEDS AND OIL
El-Kholy, M., Tharwat, A. (2008). ACCELERATED DRYING AND STABILIZATION OF CANOLA SEEDS AND OIL. EKB Journal Management System, 33(11), 7877-7890. doi: 10.21608/jssae.2008.200393
M.M. El-Kholy; A. Tharwat. "ACCELERATED DRYING AND STABILIZATION OF CANOLA SEEDS AND OIL". EKB Journal Management System, 33, 11, 2008, 7877-7890. doi: 10.21608/jssae.2008.200393
El-Kholy, M., Tharwat, A. (2008). 'ACCELERATED DRYING AND STABILIZATION OF CANOLA SEEDS AND OIL', EKB Journal Management System, 33(11), pp. 7877-7890. doi: 10.21608/jssae.2008.200393
El-Kholy, M., Tharwat, A. ACCELERATED DRYING AND STABILIZATION OF CANOLA SEEDS AND OIL. EKB Journal Management System, 2008; 33(11): 7877-7890. doi: 10.21608/jssae.2008.200393

ACCELERATED DRYING AND STABILIZATION OF CANOLA SEEDS AND OIL

Journal of Soil Sciences and Agricultural Engineering
Article 1, Volume 33, Issue 11, November 2008, Page 7877-7890  XML PDF (604.43 K)
Document Type: Original Article
DOI: 10.21608/jssae.2008.200393
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Authors
M.M. El-Kholy1; A. Tharwat2
1Agric. Eng. Res. Institute, Dokki, Giza
2Agric. Eng. Dept, Fac. of Agric., Mansoura Univ.
Abstract
A study was carried out to test and evaluate the effect of accelerated drying of canola on seeds moisture content, fungal load on seeds surface and stabilization of the extracted oil using a conduction heating rotary dryer. The drying temperature was set at approximately 95, 105, 115, 125, 135 and 145 oC and the drying time was set at 5, 10, 15, 20, 25 and 30 min.  The results showed that all the drying process occurred at the falling rate period in which the rate of evaporation tends to fall as the moisture content decreases and the drying curve decays exponentially towards the equilibrium moisture content. Rapid moisture removal from seeds was obvious in all experiments particularly at higher heating surface temperature and longer exposure time. The results also showed that both the simple and the modified exponential equation models were satisfactorily described the drying behavior of canola seeds and predicted the change in seeds moisture content as indicated by the lower values of standard error of estimate (SE) and the higher coefficient of determination (R2). Meanwhile, high temperature conduction heating reduced the fungal load in canola seeds in an effective manner. Also, the extracted canola oil was stabilized as indicated from the lower values of free fatty acids of the samples stored under room temperature. In general, it can be said that, the accelerated drying and heat stabilization of canola seeds using the conduction heating rotary dryer may be considered as an effective procedure for moisture reduction, fungal inactivation and oil stabilization.
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