کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9684807 | 1456214 | 2005 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Ethylene permeability of wheat gluten film as a function of temperature and relative humidity
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تصفیه و جداسازی
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چکیده انگلیسی
The ethylene permeability of a wheat gluten film was studied as a function of relative humidity (RH) (from 0 to 100%) and temperature (from 3 to 45 °C), using response-surface methodology. Ethylene permeability values ranged in a wide scale from 1 to 3098 amol mâ1 sâ1 Paâ1. The exponential effect of relative humidity on ethylene permeability was related to the boosting effect of increasing film water content on ethylene solubility and diffusivity in the hydrated film. The temperature dependency of the ethylene permeability data showed a strong disruption near the glass transition temperature value (25 °C at 75% RH). The glass transition phenomenon and its effect on chain mobility could explain the interesting synergic effect of both temperature and relative humidity on ethylene permeability of wheat gluten film.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Membrane Science - Volume 256, Issues 1â2, 1 July 2005, Pages 108-115
Journal: Journal of Membrane Science - Volume 256, Issues 1â2, 1 July 2005, Pages 108-115
نویسندگان
H. Mujica Paz, V. Guillard, M. Reynes, N. Gontard,