Abstract
AbstractThe application of the aroma compounds in cosmetics, food, medicine, textile, tobacco and so forth brings the charming senses of the smell and taste. However, their main ingredients tend to deterioration due to the fast release and oxidation during the storage and usage. The silica porous materials provide the effective protection for these volatile aroma compounds. In this paper, vinyl silica hollow spheres were successfully prepared via one‐step method with tunable size. Vinyl silica hollow spheres with two sizes of 390 and 650 nm were loaded with aroma compounds. Both of the silica hollow spheres showed the selective loading capacities for aroma compounds. Interestingly, silica hollow spheres with bigger size exhibited the higher encapsulation efficiency of 94.20% and the slower sustained release of 118.3 mg/g after 16 hours of phenylethanol. This is ascribed to bigger interior cavity volume per mass unit analysed by mathematic model. The kinetics of phenylethanol release was also studied. Our work is expected to trigger a new consideration of capsule design for sustained release with high loading efficiency.
Published Version
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