PROCEDE DE DETERMINATION AUTOMATIQUE DE PARAMETRES PHYSICO-CHIMIQUES D'UN LOT DE GRAINS, ET APPAREIL DE MISE EN OEUVRE DE CE PROCEDE

Apparatus and process for the automatic determination of a relation between a first surface of a grain cutting (1), previously coloured in function of a physical-chemical parameter of interest, and a second surface corresponding to the albumine of the grains of the cutting. The apparatus comprises in combination: an object holder (20) which supports the grain cutting (1) to be analyzed, a first assembly (15a, 15b) for illuminating the cutting (1) with selective light to display said first surface, a second assembly (5a, 5b) for illuminating the cutting (1) with selective light to display said second surface, a video camera (50), cooperating with an optical filter, a numerical image analyzer (70), a microcomputer (40) for controlling the apparatus. Application to the food stuff industry and in particular to brewing.