Partitioning of bovine lactoferrin in aqueous two-phase system containing poly(ethylene glycol) and sodium citrate

Angélica Ribeiro da Costa,Jane Sélia dos Reis Coimbra,Luísa Alexandre Ferreira,João Carlos Marcos,Igor José Boggione Santos,Marleny D.A. Saldaña,José António Couto Teixeira

Food and Bioproducts Processing（2015）

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摘要

•Equilibrium data were measured for PEG+sodium citrate ATPS at 25̊C.•Merchuk model was successfully adjusted to the experimental data of binodal curve.•Influence of PEG molar mass and pH on thermodynamic variables were determined.•Lactoferrin was partitioned to the salt-rich bottom phase.•Protein-transfer process is driven by entropic contributions.

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关键词

ATPS,Molar mass,PEG,pH,Phase diagram,Whey protein

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