PROCEDE PERMETTANT DE PREPARER UNE PREPARATION STABLE EN COULEUR D'UN SEL DE METAL ALCALIN DE CHLOROPHYLLINE DE MAGNESIUM OU D'UN SEL DE METAL ALCALINO-TERREUX A PARTIR DE SOURCES NATURELLES DE CHLOROPHYLLE
The present invention provides a method for preparing a colour-stable preparation of a magnesium chlorophyllin alkali metal salt or alkali earth metal salt from natural sources of chlorophyll. The invention further provides a colour-stable and substantially pure pigment composition comprising a vibrant green magnesium chlorophyllin in the form of an alkali metal or alkali earth metal salt, e.g. those prepared by the methods of the invention, and the use of the salts and compositions of the invention as colouring agents, in particular as food colouring agents, and as medicaments and disinfectants.
