Compositions providing slow release of caffeine
AssigneePepsiCo, Inc.
InventorsYu WANG, DaSom NO, Yuan FANG, Nelson TRUSLER, Damian BROWNE, George MEYER, Xin ZHAO, Meng TIAN, Shiyi ZHANG
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Abstract
The present disclosure relates to complexes comprising caffeine and tannic acid as well as emulsions and beverages comprising these complexes which slow the release of the caffeine. Also described are methods of preparing the complexes and emulsions and beverages comprising caffeine-tannic acid complexes.
Claims21
-25. (canceled)
A process for preparing a complex comprising caffeine and tannic acid, the process comprising adding tannic acid and caffeine to absolute ethanol or aqueous ethanol and spray drying the resulting solution.
A process for preparing a complex comprising caffeine and tannic acid, the process comprising adding an aqueous solution of tannic acid in water to an aqueous solution of caffeine in water and filtering the resulting suspension.
A process for preparing an emulsion comprising:
- a. an oil phase comprising at least one oil comprising a complex comprising caffeine and tannic acid;
- and
- b. an aqueous phase comprising water;
- the process comprising adding a mixture of the complex, at least one oil, and optionally one or more stabilizers to a mixture of water and optionally one or more emulsifiers and mixing at high speed, wherein the emulsion comprises from about 2 wt % to about 30 wt % of the at least one oil.
(canceled)
Dependencies are inferred from the claim text.