کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
688190 889399 2008 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Influence of blanching and slice thickness on drying characteristics of leek slices
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
پیش نمایش صفحه اول مقاله
Influence of blanching and slice thickness on drying characteristics of leek slices
چکیده انگلیسی
The effect of blanching and slice thickness on drying characteristics of leek was studied. Drying experiments were performed in a cabinet dryer. Drying time decreased with blanching, but it increased considerably with increased slice thickness of leek. Besides, predrying treatment such as blanching was found to improve the rehydration capacities of leek slices. The experimental drying curves obtained show only a falling rate period. In order to estimate and select the suitable form air drying curves, seven different mathematical models were applied to the experimental data. Determination of coefficient (R2), reduced chi-square (χ2) and root mean square error (ERMS) were used for determination of the best suitable model. Among the mathematical models investigated, the logarithmic and Midilli et al. models satisfactorily described the drying behaviour of leek slices with highest R2 and lowest χ2 and ERMS. The effective moisture diffusivity during drying varied from 1.145 to 2.642 × 10−10 m2/s.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering and Processing: Process Intensification - Volume 47, Issue 1, January 2008, Pages 41-47
نویسندگان
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