کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9633613 | 1426351 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The UNIFAC-NRF activity coefficient model based on group contribution for partitioning of proteins in aqueous two phase (polymer + salt) systems
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: The UNIFAC-NRF activity coefficient model based on group contribution for partitioning of proteins in aqueous two phase (polymer + salt) systems The UNIFAC-NRF activity coefficient model based on group contribution for partitioning of proteins in aqueous two phase (polymer + salt) systems](/preview/png/9633613.png)
چکیده انگلیسی
The group contribution model, UNIFAC-NRF, was applied for correlation of partition coefficient of proteins. This model was already developed for aqueous two phase of (polymer + salt) systems. The protein molecules were divided into some patches assumed to have interaction with the other species in aqueous (polymer + salt) systems. The binary interaction parameters were used for prediction of protein partitioning in aqueous two phase systems. These parameters were obtained by correlating the binary electrolyte solution and ternary aqueous two phase systems. The results of UNIFAC-NRF model are in a very good agreement with the experimental data for partitioning of lysozyme in both (PEG + K2HPO4 + water) and (PEG + Na2SO4 + water) systems at different pHs. The comparison of the results, which were obtained by both UNIFAC-NRF and the VERS models, shows that the present group contribution model can correlate the partitioning of protein in ATPS better than the VERS model.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: The Journal of Chemical Thermodynamics - Volume 37, Issue 3, March 2005, Pages 289-295
Journal: The Journal of Chemical Thermodynamics - Volume 37, Issue 3, March 2005, Pages 289-295
نویسندگان
Ali Haghtalab, Babak Mokhtarani,