PGA was consistently negatively charged in this pH range, but it exhibited an increasing trend as the pH dropped from 6.0 to 2.0.
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Characterization of coacervation behavior between whey protein isolate and propylene glycol alginate: A morphology, spectroscopy, and thermodynamics study.
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The sentences
With an increase in PGA, the mean particle size of the WPI-PGA complex exhibited a decreasing trend with decreased turbidity, which showed that the addition of PGA reduced the polymerization of WPI.