Decolorization of brown pigments in foods by immobilized mycelia of Coriolus versicolor IFO 30340 and Paecilomyces canadensis NC-1

Three microorganisms were cultured to investigate their decolorizing activi ty on mixtures of 2 types of model brown pigment and 2 types of browned foo d. The mixture of model brown pigments of the Maillard reaction type and ph enol type was not decolorized by cultivation with Coriolus versicolor IFO 3 0340, but it was decolorized by Paecilomyces canadensis NC-1 and by Strepto myces werraensis TT 14. The immobilized mycelia of C. versicolor IFO 30340 and P. canadensis NC-1 were incubated simultaneously or successively with e ach mixture of 2 types of browned food. It was found that the mixed culture of these 2 mycelia showed a higher decolorization rate than their successi ve culture.