Fermented dry cocoa beans (500 g) were whole-bean roasted
(140 C, 30 min) in a hot-air oven. Cocoa beans were deshelled by
breaking and winnowing of the nibs. Roasted nibs were ground into
cocoa liquor using a ball miller (Retsch GmbH, Haan, Germany).
Sensory analysis of cocoa liquors was performed by a trained panel
of five members of Barry Callebaut France (Louviers, France), as
described before (Camu et al., 2008a).