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Interbiopolymer complexes

On mixing solutions of a protein and a polysaccharide, four kinds of mixed solutions can be obtained. Figure 3.1 shows that two single-phase systems (1 and 3) and two-types of biphase systems (2 and 4) can be produced. The two-phase liquid systems 2 and 4 differ in the distribution of biopolymers between the co-existing phases. The biopolymers are concentrated either in the concentrated phase of system 2 because of interbiopolymer complexing, or within separated phases of system 4 because of incompatibility of the biopolymers. The term biopolymer compatibility implies miscibility of different biopolymers on a molecular level. The terms incompatibility or limited thermodynamic compatibility cover both limited miscibility or limited cosolubility of biopolymers (i.e., system 2) and demixing or phase separation... [Pg.22]

Interbiopolymer complexes are formed in aqueous media between oppositely charged biopolymers, when the attractive forces between non-identical macromolecules are larger than between macromolecules of the same type. Interbiopolymer complexes can be both soluble (system 1) and insoluble (system 2). It has been shown that nonspecific interpolymer interactions can be reversible and non-reversible and cooperative and noncooperative in nature (Tolstoguzov et al. 1985). [Pg.23]

Bacterial flagella Dynamic light scattering Interbiopolymer complex Irreversible precipitation Thermal denaturation... [Pg.370]

See other pages where Interbiopolymer complexes is mentioned: [Pg.27]    [Pg.23]    [Pg.26]    [Pg.26]    [Pg.27]    [Pg.28]    [Pg.29]    [Pg.30]    [Pg.31]    [Pg.35]    [Pg.36]    [Pg.39]    [Pg.40]    [Pg.354]    [Pg.27]    [Pg.23]    [Pg.26]    [Pg.26]    [Pg.27]    [Pg.28]    [Pg.29]    [Pg.30]    [Pg.31]    [Pg.35]    [Pg.36]    [Pg.39]    [Pg.40]    [Pg.354]   
See also in sourсe #XX -- [ Pg.26 , Pg.27 ]



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