کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
226568 | 464548 | 2006 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Determination of rheological properties of some pekmez samples in Turkey
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
The rheological behaviors of pekmez samples (mulberry, grape, rosehip and harnup juice) were investigated. Viscosity was measured at 5, 10, 15, 20 and 30 °C using a rotational viscometer in the shear rate range of 0–93 s−1. An emprical power-law model was used to describe the rheological behaviors of pekmez samples. Pekmez samples were found to exhibit non-Newtonian behaviors. An Arrhenius equation was used to determine the effect of temperature on viscosities of pekmez samples and thus Ea values of pekmez samples were calculated. The activation energies vary from 18.509 to 74.658 kJ/mol depending on the solid contents (39.44, 60.48, 67.08, 69.68, 71.98, 74.22, 75.4 and 75.46 °Brix).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Food Engineering - Volume 77, Issue 4, December 2006, Pages 1064–1068
Journal: Journal of Food Engineering - Volume 77, Issue 4, December 2006, Pages 1064–1068
نویسندگان
H. Yoğurtçu, F. Kamışlı,