Abstract
The process, known as alkali pH-shifting treatment, was able to improve the emulsifying capacity of pea protein isolates (PPI). In this work the mechanism was further investigated. The relative quantities and types of interfacial adsorbed proteins with alkali pH-shifting treatments were determined by quantitative proteomic. For the pH 10-shifting treatment, the relative quantities of legumins and albumins were increased at the oil-water interface, and the increases of small molecule albumins were resulted from their faster adsorption rates. In contrast, the relative abundances of vicilins were decreased by the effect of competitive adsorption at the interface. Further these quantitative results were verified with the interface rheology of the major components of PPI. The stronger emulsifying activity of pH 10-shifting-treated 11S might play a key role in the whole emulsifying behavior of pH 10-shifting-treated PPI. These results could promote the potential development of theory of plant protein stabilized emulsions. • The pH 10-shifting treatment improved pea protein isolate (PPI) emulsifying ability. • For pH 10-shifting treatment, legumin (11S) showed higher interfacial affinity. • The competitive interfacial adsorption among the components of PPI was observed. • Quantitative information was consistent with interfacial behavior of PPI components.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: 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.