ISSN 2284-7995, ISSN Online 2285-3952


Published in Scientific Papers. Series "Management, Economic Engineering in Agriculture and rural development", Vol. 21 ISSUE 1
Written by Tarek FOUDA, Mohamed EL-KHOLY, Adel ELMETWALLI, Mohamed DARWESH, Amal EL ZANATY

The present work aims tot Study the effect of using two different heating methods on stabilization of flaxseeds using a rotating cylindrical dryer with conduction & infrared heating systems. The study also tested and evaluated two different mathematical models to describe the drying behavior of flaxseed, with linking the constants in the Mathematical examined equations to the experimental variables. The most appropriate mathematical model to describe the behavior of flaxseed moisture loss was also determined. The samples used for experimental work were fresh flax seed at moisture content 11±1 % wb. Four different temperatures of the surface of the cylinder (90, 105, 120 and 135°C at 3, 6. 9, 12, 15 and 18 minutes were examined for the conduction heating dryer. At Infrared treatments fixed feeding rate of 2 kg was used at radiation intensity of 53.01, 331.6, 477.5, 848.89 and 1,326.39 w/m2 and exposure times of 3, 6. 9, 12 and 15 minutes. The results showed that, for conduction heating process using heat treatment at 105°C for min gives the best result in terms of lower free fatty acids and peroxide value, But in Infra-red treatment the best result was obtained at 331.59 w/m2 for 15 min.

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© 2019 To be cited: Scientific Papers. Series “Management, Economic Engineering in Agriculture and Rural Development“.

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