Table 3.

The content of total flavonoids in silkworm cocoons by the two methods (mg/g ±SD)

		Daizo	White	Colored cocoons
Methods	Aglycones	Cocoon	Cocoon	1201	1-342	1-425	1-427	1-451	1-474	1-901	1-949	4-524
HAE-HPLC	Quercetin	1.98	0.02	0.04	1.41	0.81	2.78	0.04	0.04	0.22	2.38	1.57
	(Q)	±0.06	±0.01	±0.01	±0.08	±0.02	±0.33	±0.03	±0.01	±0.01	±0.12	±0.13
	Kaempferol	0.42	0	0.02	0.22	0.18	0.44	0.02	0.03	0.06	0.37	0.33
	(K)	±0.01	0	±0.01	±0.01	±0.02	±0.04	±0.01	±0.01	±0.01	±0.02	±0.01
	Total sum	2.40	0.02	0.05	1.63	0.99	3.22	0.06	0.07	0.28	2.75	1.89
	(Q + K)	±0.07	±0.01	±0.01	±0.08	±0.03	±0.31	±0.01	±0.01	±0.01	±0.11	±0.12
Colorimetry	Total flavonoids	2.59	0.48	0.43	2.79	3.23	2.06	1.01	0.69	2.07	2.90	1.07
	(Rutin)	±0.09	±0.12	±0.25	±0.19	±0.37	±0.22	±0.18	±0.10	±0.20	±0.01	±0.1
	≈	1.28	0.24	0.21	1.38	1.60	1.02	0.50	0.34	1.02	1.44	0.53
	Quercetin	±0.04	±0.06	±0.12	±0.09	±0.18	±0.11	±0.09	±0.05	±0.10	±0.01	±0.05

Q + K is quercetin + kaempferol, ‘≈Quercetin’ means that the value of total flavonoids by the UV colorimetric method was converted into an equivalent quantity of quercetin according to the molecular mass of rutin.