Abstract
The influence of pH (2–7) on the interfacial and emulsifying properties of β-conglycinin/pectin (7S/PC) mixtures was investigated. At pH 2–3 (pH < pI of 7S), 7S/PC mixtures had large size and low Zeta potential, leading to slower adsorption kinetics. When treated by deformation amplitude in the non-linear region, Lissajous plots of 7S/PC mixtures at pH 3 suggested that PC might adsorb onto the interfaces through competitive adsorption as proved by viscous behavior response. These combinations effects resulted in poor emulsification properties and emulsions instability. At pH = 5–7 (pH > pI of 7S), 7S/PC mixtures had smaller size and higher Zeta-potential values, leading to the rapid adsorption. Lissajous plots of 7S/PC mixtures at pH 6 suggested that 7S almost irreversibly adsorbed onto the interface as proved by a purely elastic response. Particle sizes of emulsions stabilized by 7S/PC mixtures at pH 6–7 remained unchanged due to that PC provided electrostatic and steric stabilization. In summary, pH had significant effects on the interactions between 7S and PC, and thereby influenced the interfacial and emulsifying properties of their mixtures.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
