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

Table 5

Component loading matrix of 25 batches of RHSW.

Component
Gallic acid	−0.488	−0.037	0.188	0.431	−0.035	0.679
Procyanidins B1	0.06	0.206	−0.413	0.736	0.177	−0.159
Catechin	−0.068	0.254	0.671	0.249	0.383	0.013
Gallate	−0.054	0.814	−0.193	−0.049	−0.092	−0.064
Aloe-emodin glycosides	−0.01	0.92	0.028	0.003	−0.208	−0.149
Polydatin	−0.075	0.911	0.096	−0.021	−0.222	0.048
Stilbene glucoside	0.69	0.225	−0.104	−0.13	−0.185	0.481
Rhaponticin	0.58	0.246	−0.432	0.253	0.362	0.258
Resveratrol	0.814	0.141	0.138	−0.2	0.083	0.062
Emodin glycosides	0.885	0.011	−0.052	−0.106	0.159	0.105
Physcion glycosides	0.768	−0.092	−0.483	−0.18	−0.011	−0.024
Aloe emodin	0.594	−0.286	−0.178	0.351	−0.158	−0.079
Rhein	0.314	0.241	0.257	−0.121	0.758	−0.094
Emodin	0.711	−0.074	0.539	0.104	−0.303	0.087
Chrysophanol	0.588	−0.054	0.25	0.566	−0.235	−0.289
Physcion	0.83	−0.079	0.34	−0.073	−0.116	−0.099

RHSW: raw Polygonum multiflorum Thunb.