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Colloid and Polymer Science
Erschienen in: Colloid and Polymer Science 9/2020

10.07.2020 | Original Contribution

Influence of ionic strength on gel-like Pickering emulsions stabilized by self-assembled colloidal nanoparticles containing lysozyme

verfasst von: Cuige Zhang, Rongli Zhang, Ye Zhu, Sheng Xu, Xiaoya Liu

Erschienen in: Colloid and Polymer Science | Ausgabe 9/2020

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Abstract

Introducing lysozyme (Lys) to dopamine-modified poly (γ-glutamic acid) (PGA-DA), the self-assembled colloidal nanoparticles (Lys/PGA-DA) were obtained through the electrostatic, hydrogen bonding and hydrophobic interactions. After mixing vigorously colloidal nanoparticles and white oil, o/w gel-like emulsion formed. The influences of ionic strength on the properties and emulsifying performances of colloidal nanoparticles and the activity of Lys in emulsions were investigated in detail. Scanning electron microscopy (SEM) characterization and rheological measurements demonstrated that emulsifying properties of colloidal nanoparticles were significantly improved with increasing salt concentration. Moreover, fluorescence and circular dichroism (CD) measurements showed that the addition of salt might induce conformational changes of Lys in colloidal nanoparticles resulting in a more ordered secondary structure, thereby leading to an increase in enzyme activity. In vitro cytotoxicity of emulsions revealed that emulsions showed a low cytotoxicity and a high bioactivity. All results verified that the obtained emulsion could have potential application in food, pharmaceutical, and cosmetic fields.
Vorheriger Artikel Study of agarose aggregate formation through rheological and DLS analyses
Nächster Artikel Influence of non-rubber components on film formation behavior of natural rubber latex

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Metadaten
Titel
Influence of ionic strength on gel-like Pickering emulsions stabilized by self-assembled colloidal nanoparticles containing lysozyme
verfasst von
Cuige Zhang
Rongli Zhang
Ye Zhu
Sheng Xu
Xiaoya Liu
Publikationsdatum
10.07.2020
Verlag
Springer Berlin Heidelberg
Erschienen in
Colloid and Polymer Science / Ausgabe 9/2020
Print ISSN: 0303-402X
Elektronische ISSN: 1435-1536
DOI
https://doi.org/10.1007/s00396-020-04700-w

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