Chemical compositions, chromatographic fingerprints and antioxidant activities of Citri Exocarpium Rubrum (Juhong)

Table 7 Spearman’s correlation between the characteristic peaks of each CER sample and its antioxidant capacities

Peak no.	Correlation coefficient
Peak no.	DPPH free radical scavenging capacity	Ferric reducing capacity	ABTS radical scavenging capacity
Peak 01	−0.575	0.446	−0.760**
Peak 02	−0.290	0.174	−0.406
Peak 03	0.152	−0.224	0.697**
Peak 04	−0.055	0.079	0.709**
Peak 05	0.138	0.450	−0.510
Peak 06	−0.307	0.533	−0.792**
Peak 07	−0.252	0.511	−0.743
Peak 08	0.527	−0.042	0.952**
Peak 09	−0.115	0.394	0.612
Peak 10 + 11	0.503	−0.030	0.976**
Peak 12	−0.018	0.395	0.638*
Peak 13	0.503	−0.030	0.976**
Peak 14	−	−	0.915**
Peak 15	−0.418	0.697	−0.709*
Peak 16	0.503	−0.030	0.976**
Peak 17	0.550	−0.306	0.932**

ISSN: 1749-8546