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Iranian Journal of Chemistry and Chemical Engineering، جلد ۴۳، شماره ۳، صفحات ۱۲۵۲-۱۲۶۶
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| عنوان فارسی |
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| چکیده فارسی مقاله |
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| کلیدواژه‌های فارسی مقاله |
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| عنوان انگلیسی |
Improving Orange Pomace Dehydration Process through a New Controlled Atmosphere Dryer under Vacuum Conditions: A Bioactive Compound Investigation and Optimization |
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| چکیده انگلیسی مقاله |
This study aimed to reduce food waste of orange pomace through an improved vacuum dryer with two different normal (NorAtm) and controlled atmosphere (ConAtm) methods. N2 gas was injected into a vacuum chamber to control the drying atmosphere to limit the oxidation reaction. A Central Composite Design (CCD) optimization approach was applied with temperature and pressure levels of 45 to 85 ℃ with an interval of 10 ℃ and 40 to 80 kPa with a 10 kPa interval, respectively, for both drying methods. The parameters, including effective moisture diffusivity, total energy consumption, color indices (ΔL*, Δa*, Δb*, and BI), antioxidant capacity, total phenolic content, and ascorbic acid, were measured for all samples during
the drying process. The results showed that the controlled atmosphere positively affected the drying rate (16% increase on average) and could reduce energy consumption (16% decrease on average). Also, in addition to achieving more antioxidant capacity (11% increase), the ascorbic acid was more stable (up to 200%) under the controlled atmosphere conditions. TPC changes were significant at the level of 0.05 just for temperature changes by NorAtm. On the other hand, the effect of vacuum on the Δa* was insignificant for both ConAtm and NorAtm, and the value of Δa* orange pomace dried by ConAtm was lower than NorAtm by about 27%. |
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| کلیدواژه‌های انگلیسی مقاله |
Normal atmosphere,Drying,Central composite design,Nitrogen,Orange waste |
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| نویسندگان مقاله |
Hamed Homayounfar |
Department of Biosystems Engineering, Faculty of Agriculture, Bu-Ali Sina University, Hamedan, I.R. IRAN
Reza Amiri Chayjan |
Department of Biosystems Engineering, Faculty of Agriculture, Bu-Ali Sina University, Hamedan, I.R. IRAN
Hassan Sarikhani |
Department of Horticultural Sciences, Faculty of Agriculture, Bu-Ali Sina University, Hamedan, I.R. IRAN
Salman Movahedirad |
School of Chemical Engineering, Iran University of Science and Technology, Tehran, I.R. IRAN
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| نشانی اینترنتی |
https://ijcce.ac.ir/article_708514_50d5bd893d3d9ccc1310e9338cbd7a05.pdf |
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| کد مقاله (doi) |
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| زبان مقاله منتشر شده |
en |
| موضوعات مقاله منتشر شده |
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