Isolation and Bioactivity Analysis of Ethyl Acetate Extract from Acer tegmentosum Using In Vitro Assay and On-Line Screening HPLC-ABTS⁺ System

Table 5

Extracts and bioactivity efficiency by on-line screening HPLC-ABTS in positive and negative peak area.

Compounds name	Retention time; (; min)	Positive peak area; (mAU)	Negative peak area; (mAU)	Figure number
Avicularin E-6-4	10.650	12.3413	5.7326	Figure 5 (EA phase; complex compounds)
Feniculin E-6-2	13.870	14.6317	5.2711
(+)-Catechin E-7-6-2	15.880	20.5975	14.0358
(−)-Epicatechin E-7-6-4	24.167	3.6339	0.4618
6′-O-Galloyl salidroside E-9-3-2	24.983	2.8776	0.3851
Avicularin E-6-4	10.700	3.6358	12.7703	Figure 6 (EA phase; isolation compounds)
Feniculin E-6-2	13.884	2.7657	10.5891
(+)-Catechin E-7-6-2	15.928	7.3008	11.8252
(−)-Epicatechin E-7-6-4	24.217	4.1437	3.0740
6′-O-Galloyl salidroside E-9-3-2	25.062	5.1196	4.1546