Partition of proteins in aqueous polymer two-phase systems and the effect of molecular weight of the polymer |
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| Affiliation: | 1. Uppsala Clinical Research Center and Department of Medical Sciences, Cardiology, Uppsala University, Uppsala, Sweden;2. AstraZeneca Nordic-Baltic, Södertälje, Sweden;3. Statisticon AB, Uppsala, Sweden;4. Department of Cardiology and Department of Medicine and Health Sciences, Faculty of Health Sciences, Linköping University, Linköping, Sweden;5. Department of Cardiology, Sahlgrenska University Hospital, Gothenburg, Sweden;6. Department of Internal Medicine, County Council of Jönköping, Department of Medical and Health Sciences, Faculty of Health Sciences, Linköping University, Linköping, Sweden;1. State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, China;2. National Engineering Research Center for Safe Sludge Disposal and Resource Recovery, Harbin Institute of Technology, Harbin 150090, China;3. School of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin 150030, China;1. Graduate Program in Food Technology, Federal Technological University of Paraná (UTFPR), Medianeira, Paraná, P.O. Box: 271, Postal Code 85.884-000, Brazil;2. Department of Food, Federal Technological University of Paraná (UTFPR), Medianeira, Paraná, P.O. Box: 271, Postal Code 85.884-000, Brazil;3. Graduate Program in Food Science and Technology, University of Passo Fundo (UPF), Campus I, Passo Fundo, Rio Grande do Sul, P.O. Box: 611, Postal Code 99.001-970, Brazil;4. Graduate Program in Engineering and Food Science, Federal University of Rio Grande (FURG), Rio Grande, Rio Grande do Sul, P.O. Box: 474, Postal Code 96.201-900, Brazil |
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| Abstract: | ![]()
The partition of substances in aqueous polymer two-phase systems is influenced by the molecular weight of the phase-forming polymers. We investigate how the effect of the molecular weight of the polymers depends on the molecular weight of the partitioned protein. We show that the magnitude of change of the partition is very small for proteins of molecular weights around 10 000, but increases almost linearly up to molecular weights of 250 000. |
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