In all cases, the recovery values
obtained were comprised between 97.5 and 103.1%. The developed method was also successfully applied
to analyze 66 commercially available cocoa powders from different brands and markets finding that the
11% of powders contained vanillin and/or ethyl vanillin in concentration ranges comprised between 5.6
and 90.8, and 5.1 and 12.2 mg/100 g for vanillin and ethyl vanillin, respectively. Finally