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- W2017296052 abstract "The purification of human immunoglobulin G (IgG) from a Chinese hamster ovary (CHO) cells supernatant was studied using an aqueous two-phase system (ATPS) composed of ethylene oxide/propylene oxide (UCON) and dextran. In UCON/dextran systems IgG partitions preferentially to the less hydrophobic dextran-rich phase (Kp<1). The addition of triethylene glycol-diglutaric acid (TEG-COOH) shifted the IgG partition into the upper phase showing significant improvements in both the recovery yields and purity. The purification of IgG from a CHO cell supernatant with UCON 2000/dextran/TEG-COOH system was optimised using a central composite design. Using an ATPS composed of 8% UCON, 6% dextran and 20% TEG-COOH, IgG was purified, in two steps, with a global yield of 85% and 88% purity. Statistical valid models were obtained to predict the effect of the experimental conditions on the IgG yield and purity, for both extraction and back-extraction steps. A system composed of 10% UCON, 5.5% dextran and 20% TEG-COOH was identified as the best compromise between final purity and yield." @default.
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- W2017296052 date "2008-06-01" @default.
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- W2017296052 title "Purification of human immunoglobulin G by thermoseparating aqueous two-phase systems" @default.
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- W2017296052 doi "https://doi.org/10.1016/j.chroma.2008.04.077" @default.
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