Journal
ADVANCES IN COLLOID AND INTERFACE SCIENCE
Volume 299, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.cis.2021.102567
Keywords
Double emulsions; Stability; Release; Modeling; Encapsulation
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Double emulsions, dispersion systems where liquid droplets of one dispersed liquid are further dispersed in another liquid, are widely used in the food and pharmaceutical industries for co-encapsulation of hydrophilic and hydrophobic compounds. However, their stability and release mechanisms pose challenges, and studying factors affecting stability and release can help optimize their formulation for different industries.
Double emulsions (DEs), known as emulsions of emulsions, are dispersion systems in which the droplets of one dispersed liquid are further dispersed in another liquid, producing double-layered liquid droplets. These systems are widely used in the food and pharmaceutical industries due to their ability to co-encapsulate both hydrophilic and hydrophobic bioactive compounds. However, they are sensitive and unstable and their controlled release is challenging. In this study, first, the stability of DEs and their release mechanisms are reviewed. Then, the factors affecting their stability, and the release of bioactive compounds are studied. Finally, modeling of the release in DEs is discussed. This information can be useful to optimize the formulation of DEs in order to utilize them in different industries.
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