The same behavior of ζ-potential have been reported for plant proteins such as soybean, chicken pea, lentil, and sesame, where, ζ-potential was positive at pH less than pI and gradually declined to 0 adjusting pH to the pI (pH = 4.5), and then exhibited a negative trend with further increasing pH value 45 , 46 .
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Enhancing the techno-functional properties of Quinoa protein isolate through cold plasma treatment: a comprehensive study on pH effects.
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