title: Extractive bioconversions in aqueous two-phase systems: enzymatic hydrolysis of casein proteins.
abstract: Partition coefficients in poly(ethylene glycol)/dextran aqueous two-phase systems are reported for mixed-casein and its components, alpha, beta and kappa casein. Rates of casein proteolysis by alpha-chymotrypsin and by trypsin are reported in single-phase and aqueous two-phase reactor systems. The advantages resulting from selective partitioning of substrates, enzymes, and products are examined in terms of relative volumetric reaction rates.
authors.affiliation: Department of Chemical Engineering, University of California, Berkeley, California 94720, USA.
authors.forename: S
authors.initials: S
authors.lastname: Mukataka
authors.forename: C A
authors.initials: CA
authors.lastname: Haynes
authors.forename: J M
authors.initials: JM
authors.lastname: Prausnitz
authors.forename: H W
authors.initials: HW
authors.lastname: Blanch