Abstract: The present invention provides a method for producing caffeine, wherein the method comprises: (a) combining a coffee extract comprising caffeine with an aqueous organic acid; (b) crystallizing the coffee extract and the aqueous organic acid so as to form caffeine-organic acid co-crystals in an aqueous phase; (c) separating the caffeine-organic acid co-crystals from the aqueous phase; and (d) extracting caffeine from the co-crystals obtained in step (c), wherein step (d) comprises placing the co-crystals in an aqueous solution so as to form a caffeine precipitate and a solution comprising the organic acid. Also provided is a method for producing a decaffeinated coffee extract comprising chlorogenic acids.

Abstract: A composition contains at least one probiotic or enzyme selected from the group consisting of (i) a probiotic having ?-glycosidase activity or a ?-glycosidase, (ii) a probiotic having esterase activity or an esterase, (iii) a probiotic having both ?-glycosidase activity and esterase activity or an enzyme having both ?-glycosidase activity and esterase activity, (iv) a first probiotic having ?-glycosidase activity and a second probiotic having esterase activity, (v) a probiotic having ?-glycosidase activity and an esterase, (vi) a ?-glycosidase and a probiotic having esterase activity and (vii) a ?-glycosidase and an esterase. The at least one probiotic can form one or more of oleuropein aglycone, elenolic acid, hydroxytyrosol acetate or hydroxytyrosol from oleuropein. The composition can comprise oleuropein.