Determination of Polar Compounds in Guava Leaves Infusions and Ultrasound Aqueous Extract by HPLC-ESI-MS

Table 4

Correlation between the antioxidant activity and polar compounds.

Compounds		FRAP		ABTS
		value	value	value	value
1	HHDP glucose isomer	−0.9644	***	−0.9721	***
2	HHDP glucose isomer	−0.8199	*	−0.8321	*
3	HHDP glucose isomer	−0.7507	*	−0.7700	*
4	Gallic acid	0.992	***	0.9993	***
5	Prodelphinidin B2 isomer	0.9817	***	0.9845	***
6	Pedunculagin/casuariin isomer	0.9849	***	0.9980	***
7	Prodelphinidin dimer isomer	0.9895	***	0.9962	***
8	Gallocatechin	0.9887	***	0.9922	***
9	Prodelphinidin dimer isomer	0.9909	***	0.9977	***
10	Geraniin isomer	0.9747	***	0.9911	***
11	Pedunculagin/casuariin isomer	0.985	***	0.9979	***
12	Geraniin isomer	0.9922	***	0.9911	***
13	Procyanidin B isomer	0.9907	***	0.9978	***
14	Procyanidin B isomer	0.9949	***	0.9973	***
15	Tellimagrandin I isomer	0.987	***	0.9985	***
16	Catechin	0.99	***	0.9916	***
17	Casuarinin/casuarictin isomer	0.9874	***	0.9990	***
18	Tellimagrandin I isomer	0.9881	***	0.9989	***
19	Gallocatechin	0.9881	***	0.994	***
20	Myricetin-arabinoside/xylopyranoside isomer	0.9889	***	0.9978	***
21	Procyanidin B isomer 2	0.9891	***	0.9967	***
22	Myricetin hexoside isomer	0.9893	***	0.9979	***
23	Myricetin hexoside isomer	0.7694	*	0.8073	*
24	Myricetin-arabinoside/xylopyranoside isomer	0.9907	***	0.9981	***
25	Quercetin-galloylhexoside isomer	0.9893	***	0.9994	***
26	Quercetin-galloylhexoside isomer	0.99	***	0.9986	***
27	Myricetin-arabinoside/xylopyranoside isomer	0.9901	***	0.9980	***
28	Morin	0.9889	***	0.9967	***
29	Myricetin-arabinoside/xylopyranoside isomer	0.9887	***	0.9977	***
30	Ellagic acid	0.9684	***	0.9915	***
31	Hyperin	0.983	***	0.9938	***
32	Quercetin glucuronide	0.9622	***	0.9794	***
33	Isoquercitrin	0.9887	***	0.9983	***
34	Reynoutrin	0.9874	***	0.9982	***
35	Guajaverin	0.9878	***	0.9978	***
36	Guavinoside A	0.9866	***	0.9982	***
37	Avicularin	0.9874	***	0.9970	***
38	Quercitrin	0.9897	***	0.9989	***
39	Guavinoside C	0.9873	***	0.9974	***
40	Guavinoside B	0.9864	***	0.9979	***
41	Guavinoside A isomer	0.9842	***	0.9928	***
46	Guavin B	0.9865	***	0.9968	***
47	Quercetin	0.9906	***	0.9981	***
48	Naringenin	−0.5619	NC	−0.5855	NC
TPC by HPLC		0.9883	***	0.9973	***

; ; NC: not correlated.