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Aqueous two-phase biopolymer–surfactant mixtures have so far received only little attention. Here, the behaviour of such mixtures was investigated adopting methods well established for aqueous two-phase biopolymer–biopolymer mixtures. The pullulan–sodium dodecyl sulphate (SDS) mixture, in which phase separation can be induced, and then enhanced by the addition of sodium chloride (NaCl), was chosen...
Structural, morphological and thermal properties of fish skin gelatin films incorporated with basil and citronella essential oils at a ratio of 1:1 (w/w), as influenced by different surfactants (Tween-20, Tween-80 and soy lecithin at 25% based on essential oil), were characterised. Smoother surface and more homogeneous oil distribution was observed via SEM in films containing both basil and citronella...
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