کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
19250 43053 2013 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Usage of solar-assisted spouted bed drier in drying of pea
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی بیو مهندسی (مهندسی زیستی)
پیش نمایش صفحه اول مقاله
Usage of solar-assisted spouted bed drier in drying of pea
چکیده انگلیسی

The main objective of this study is to evaluate the effects of solar-assisted spouted bed and open sun drying on the drying rate and quality parameters of pea. Color, shrinkage, bulk and apparent densities, internal and bulk porosities, rehydration capacity and microstructure were the quality parameters investigated in dried product.Drying rate for solar-assisted spouted bed was about 3.5 times of drying rate for open sun drying. Air temperature changed between 20 °C and 27.4 °C during open sun drying while temperature of air at the inlet of solar-assisted spouted bed dryer varied between 35.3 °C and 65.5 °C during the experiments. Effective diffusivities were found to be 0.64 × 10−10 and 3.27 × 10−10 m2/s for open sun and solar-assisted spouted bed drying of pea, respectively. In color analysis, it was observed that a* value increased while b* value decreased for both drying methods. Bulk density and apparent density of peas dried under open sun was higher than that in solar-assisted spouted bed drier. In both drying methods, internal and bulk porosities decreased. Shrinkage was more for open sun dried samples. Rehydration capacity for solar-assisted spouted bed dried sample was higher than the one for open sun dried.


► Drying rate for solar-assisted spouted bed was higher than that for open sun drying.
► The highest quality in dried pea can be achieved in solar-assisted spouted bed dryer.
► In both drying methods, internal and bulk porosities decreased.
► Shrinkage was less while rehydration was higher for solar spouted bed dried sample.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food and Bioproducts Processing - Volume 91, Issue 3, July 2013, Pages 271–278
نویسندگان
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