Influence of composition on the encapsulation properties of P/O/W multiple emulsions for Vitamin C
| Autor: | Wenhua Ou, Qianjie Zhang, Wanping Zhang, Dan Zhu, Yubo Qin, Lili Song, Yiwei Wu, Zhang Liaoyuan |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Polymers and Plastics
Vitamin C Chemistry Aqueous two-phase system 02 engineering and technology Dynamic mechanical analysis 021001 nanoscience & nanotechnology Surfaces Coatings and Films chemistry.chemical_compound 020401 chemical engineering Chemical engineering Emulsion Dynamic modulus Glycerol 0204 chemical engineering Physical and Theoretical Chemistry 0210 nano-technology |
| Zdroj: | Journal of Dispersion Science and Technology. 40:1637-1644 |
| ISSN: | 1532-2351 0193-2691 |
| DOI: | 10.1080/01932691.2018.1527228 |
| Popis: | The aim of this work was to study the encapsulation properties of polyols-in-oil-in-water (P/O/W) multiple emulsions for Vitamin C (Vc). The influence of formulation factors, including the concentration of lipophilic emulsifier, hydrophilic emulsifier, salt and glycerol had been investigated. The results indicated that the encapsulation stability could be improved by increasing the lipophilic emulsifier concentration which could strengthen the interfacial film. In contrast, the excess of hydrophilic emulsifier destabilized the emulsion. The presence of glycerol in the outer aqueous phase accelerated the phase transfer, thus reduced the encapsulation rate. The addition of salt in inner polyols phase had little effect on encapsulation rate while markedly affected the morphology and stability of this system. P/O/W multiple emulsions showed better encapsulation stability than the W/O/W multiple emulsions as the former's encapsulation rate could remain more than 75% after 2 weeks while the latter only remained less than 60%. Meanwhile, the P/O/W emulsions exhibited higher storage modulus (G'), bigger loss modulus (G'') and broaden linear viscoelastic regions than W/O/W emulsions. |
| Databáze: | OpenAIRE |
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