Table 3.

Substrate screen for laccase activity and IC decolorization Change of absorbance (ΔA): + (change of absorbance), - (no change of absorbance).

Structure	Compound	n°	∆A	IC
	R1 = R2 = H	1	-	0
	R1 = H, R2 = OH	2	-	0
	R1 = OH, R2 = H	3	-	0
	R1 = R2 = OH	4	+	0
	R1 = OH, R2 = OCH3	5	+	25
	R1 = OH, R2 = R3 = H	6	-	0
	R1 = R2 = OH, R3 = H	7	+	0
	R1 = R2 = R3= OH	8	+	0
	R1 = OH, R2 = R3= OCH3	9	+	0
	R1 = OH, R2 = NH2, R3 = H	10	+	0
	R1 = NH2, R2 = OH, R3 = H	11	+	0
	R1 = OH, R2 = F, R3 = H	12	-	0
	R1 = OH, R2 = H	13	-	0
	R1 = OH, R2 = OCH3	14	+	40
	R1 = OCH3, R2 = OH	15	+	0
		16	-	0
	R = H	17	-	0
	R = OCH3	18	+	>99
	R1 = OH, R2 = R3 = H	19	-	0
	R1 = H, R2 = OH, R3 = OCH3	20	+	>99
		21	+	0
		22	-	0
	R = H	23	-	0
	R = OH	24	+	0
	R = H	25	-	0
	R = OH	26	-	0
	R1 = R2 = R3 = H	27	-	0
	R1 = R3 = H, R2 = CH3	28	-	0
	R1 = R3 = CH3, R2 = H	29	-	0
	R1 = OH, R2 = R3 = H	30	+	0
	R1 = OH, R2 = CH3, R3 = H	31	+	0
	R1 = R3 = OH, R2 = H	32	+	0
	R1 = R3 = H, R2 = β-O-Gluc	33	-	0
		34	+	0
		35	-	0
		36	-	0
		37	+	>99

Indigocarmine decolorization (%) (IC) is given compared to the control reaction lacking laccase.