Abstract (EN):
The aim of this study was the assessment of the physicochemical stability of D-alpha-tocopherol formulated in medium chain triglyceride nanoemulsions, stabilized with Tween(R)80 and Lipoid(R)S75 as surfactant and co-surfactant, respectively. D-alpha-tocopherol was selected as active ingredient because of its well-recognized interesting anti-oxidant properties (such as radical scavenger) for food and pharmaceutical industries. A series of nanoemulsions of mean droplet size below 90 nm (polydispersity index < 0.15) have been produced by high-pressure homogenization, and their surface electrical charge (zeta potential), pH, surface tension, osmolarity, and rheological behavior, were characterized as a function of the D-alpha-tocopherol loading. In vitro studies in Caco-2 cell lines confirmed the safety profile of the developed nanoemulsions with percentage of cell viability above 90% for all formulations. (C) 2016 The Authors.
Language:
English
Type (Professor's evaluation):
Scientific
No. of pages:
5