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US 12,507,708 B2Granted
Method of extraction of natural caffeine from a caffeine containing biological material
AssigneeGivaudan SA
InventorsLuciana Andreia De Souza Cunha, Fabio Magalhaes De Mello, Karl Chevalier
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Abstract
The present invention relates to the methods for extraction of natural caffeine from caffeine containing biological material.
Claims16
A method for extraction of natural caffeine from a caffeine containing biological material comprising:
- (i) contacting the caffeine containing biological material with an extraction solvent;
- (ii) separating solids and collecting the solvent extract;
- (iii) contacting the solvent extract from step (ii) with 1.0% to 15% (w/v) of MgO at a temperature from about 70° C. to about 90° C.;
- (iv) waiting until two phases (A and B) are formed in the mixture of step (iii) and recovering the upper phase (phase A) containing the caffeine;
- (v) optionally concentrating the phase A from step (iv);
- (vi) and optionally crystalizing the caffeine.
3 more elements
Dependencies are inferred from the claim text.