Abstract

AbstractA method is described for chemical modification of porous glass particles so that they are coated with a covalently linked layer of close‐packed, long chains of mixed alkyl and alkoxy types. This hydrophobic controlled‐pore glass is a useful model system for physico‐chemical studies of the hydrophobic interactions between proteins and fat particles in emulsions. Under non‐denaturing conditions non‐globular proteins (myosin, α‐, β‐ and χ‐caseins) bind more strongly than globular proteins (G‐actin, bovine serum albumin) in this system. Binding kinetics as well as binding strength are important in determining the composition of interfacial films in complex emulsions containing many proteins.

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