6. Absorbance Measurements for Each Food Sample With Each Substrate .

food samples	OPD	BioLegend	BioRad	ABTS-liquid	ABTS-solid
all-purpose flour	0.674	2.862	2	0.393	1.236
rice flour	0.421	1.763	1.436	0.36	1.164
gravy	0.422	3.02	2.354	0.35	1.269
gluten-free gravy	0.421	2.887	2.294	0.279	1.429
whole milk	0.424	3.078	2.385	0.399	1.345
rice milk	0.431	3.041	2.74	0.383	1.295
almond milk	0.429	3.049	1.92	0.94	1.298
beer	0.427	1.783		0.504	1.451