Digestibility and Bioavailability of the Active Components of Erica australis L. Aqueous Extracts and Their Therapeutic Potential as Acetylcholinesterase Inhibitors

Table 1

Putative identification of compounds present in Erica australis aqueous extracts, by HPLC-DAD and HPLC-ESI-MS.

Peak	(min.)	(nm)	Observed mass [M−H]^−	product ions ESI-MS; (relative abundance, %)	Compound
1	7.95	—	—	—	Unknown
2	9.77	248, 275, 331	479	[MS^2 479]: 317 (100); [MS^3 317]: 299 (100), 287 (19), 271 (47), 255 (12), 231 (11) 195 (24)	Gossypetin-glycoside
3	11.65	256, 268, 352	479	[MS^2 479]: 317 (48), 316 (100); [MS^3 316]: 317 (100), 316 (64), 287 (15), 271 (44)	Myricetin 3-O-glucoside
4	13.28	258, 271 sh, 351	463	[MS^2 463]: 317 (30), 316 (100); [MS^3 316]: 317 (100), 316 (99), 287 (19), 271 (68)	Myricetin 3-O-rhamnoside
5	14.69	256, 269 sh, 348	447	[MS^2 447]: 301 (100), 300 (35); [MS^3 301]: 301 (100), 271 (34), 255 (23), 179 (62), 151 (35)	Quercetin 3-O-rhamnoside
6	16.11	269, 348	431	[MS^2 431]: 285 (100), 284 (35); [MS^3 285]: 285 (100), 257 (16), 255 (9), 229 (7)	Kaempferol 3-O-rhamnoside
7	16.24	257, 269 sh, 347	489	[MS^2 489]: 301 (12), 300 (100); [MS^3 300]: 300 (100), 271 (25), 255 (46), 243 (15), 201 (11)	Quercetin-acetylrhamnoside

sh: shoulder.