Reported is the ability of α-helical polypeptides to self-assemble with oppositely-charged polypeptides to form liquid complexes while maintaining their α-helical secondary structure. Coupling the α-helical polypeptide to a neutral, hydrophilic polymer and subsequent complexation enables the formation of nanoscale coacervate-core micelles. While previous reports on polypeptide complexation demo...

Mixtures of gum arabic and whey protein (whey protein isolate, WP) form an electrostatic complex in a specific pH range. Three phase boundaries (pH(c), pHphi(1), pHphi(2)) have been determined using an original titration method, newly applied to complex coacervation. It consists of monitoring the turbidity and light scattering intensity under slow acidification in situ with glucono-delta-lacton...

Abstract Complex formation (leading to either coacervation or precipitation) offers a tool generate plant-based novel food structures and textures. This study investigated the of complexes between soluble pea proteins apple pectin upon varying protein-to-pectin ratio ( r = 2:1 10:1), pH (3–7), temperature (25 85 °C) with total biopolymer concentration set 1% (w/w). The results showed that predo...

Omega-3 oil from fish can be stabilised against oxidation using a variety of microencapsulation technologies. Complex coacervation has been used and found to be commercially useful for fortifying foods and beverages with long-chain omega-3 containing oils. Here we report a comparative human bioavailability study of microencapsulated omega-3 fish oil and standard fish-oil soft-gel capsules. Phos...

The aim of this study was to entrap the lipophilic ultraviolet absorber, octyl methoxycinnamate in microcapsuels to enhance its application. A complex coacervation method was established. Through the appearance of encapsulated glass beads prepared with different wall materials, gelatin and sodium polyphosphate were selected as wall materials because of dense structure and less adhesion. The eff...

We review theories of polyelectrolyte (PE) coacervation, which is the spontaneous association oppositely charged units PEs and phase separation into a polymer-dense in aqueous solution. The simplest can be divided “physics-based” “chemistry-based” approaches. In former, are treated as charged, long-chain, molecules, defined by charge level, chain length, flexibility, but otherwise lacking chemi...