Herein, we present an elegant and simple method for significant improvement of eugenol water solubility using the polymers Soluplus and Lutrol F 127 as carriers and spray drying as an encapsulation method. The formulations were optimized by adding -inositol-a sweetening agent-and Aerosil 200 (colloidal, fumed silica)-an anticaking agent. The highest encapsulation efficiency of 97.9-98.2% was found for the samples containing 5% eugenol with respect to the mass of Soluplus. The encapsulation efficiencies of the spray-dried samples with 15% eugenol are around 90%. Although lowering the yield, the addition of Lutrol F 127 results in a more regular particle shape and enhanced powder flowability. The presence of Aerosil 200 and -inositol also improves the rheological powder properties. The obtained formulations can be used in various dosage forms like powders, granules, capsules, creams, and gels.
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| http://dx.doi.org/10.3390/ph17091156 | DOI Listing |
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