کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4908835 1427087 2017 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Development of a structure-based model for moisture diffusion in multiphase lipid networks
ترجمه فارسی عنوان
توسعه یک مدل مبتنی بر ساختار برای پخش رطوبت در شبکه های لیپید چند فازی
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی
Moisture diffusion in lipids has been traditionally described by generic models that do not offer complete information about its structural dependency. Due to the lack of a predictive structure-based model in literature, we do not know the crystallization conditions needed to favorably alter structure and decrease moisture transport in lipids. The objective of this study was to develop a mathematical model to predict effective moisture diffusivity based on fractal structure and void fraction in lipids. Predicted water uptakes using the proposed model were in better agreement (RMSE 0.01-0.03) with experimental data when compared to models from literature (RMSE 0.01-0.16). Clearly, accounting for the fractality of fat crystal networks and vapor phase diffusion in the void fraction were critical to the success of the proposed model over all other models. Interestingly, moisture diffusion occurred predominantly in the void fraction compared to the liquid oil fraction of all the lipid samples.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Food Engineering - Volume 214, December 2017, Pages 60-68
نویسندگان
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