A New Strategy for Quality Evaluation and Identification of Representative Chemical Components in Polygonum multiflorum Thunb.

Table 7

Weight factor of component to the whole RHSW.

Component									% of weight
Gallic acid	−0.216	−0.022	0.143	0.360	−0.032	0.699	1.376	147.360	0.933
Procyanidins B1	0.027	0.124	−0.315	0.615	0.159	−0.164	5.359		3.637
Catechin	−0.030	0.153	0.511	0.208	0.344	0.013	11.777		7.992
Gallate	−0.024	0.492	−0.147	−0.041	−0.083	−0.066	4.685		3.179
Aloe-emodin glycoside	−0.004	0.556	0.021	0.003	−0.187	−0.153	7.281		4.941
Polydatin	−0.033	0.550	0.073	−0.018	−0.200	0.049	7.750		5.259
Stilbene glucoside	0.306	0.136	−0.079	−0.109	−0.166	0.495	11.875		8.058
Rhaponticin	0.257	0.149	−0.329	0.212	0.325	0.266	13.161		8.931
Resveratrol	0.361	0.085	0.105	−0.167	0.075	0.064	13.537		9.186
Emodin glycosides	0.392	0.007	−0.040	−0.089	0.143	0.108	13.124		8.906
Physcion glycosides	0.340	−0.056	−0.368	−0.151	−0.010	−0.025	4.353		2.954
Aloe emodin	0.263	−0.173	−0.136	0.293	−0.142	−0.081	5.007		3.398
Rhein	0.139	0.146	0.196	−0.101	0.681	−0.097	12.830		8.707
Emodin	0.315	−0.045	0.411	0.087	−0.272	0.090	12.886		8.745
Chrysophanol	0.261	−0.033	0.191	0.473	−0.211	−0.297	10.630		7.214
Physcion	0.368	−0.048	0.259	−0.061	−0.104	−0.102	11.730		7.960

RHSW: raw Polygonum multiflorum Thunb.