Skip to main content
. 2019 Feb 14;24(4):686. doi: 10.3390/molecules24040686

Table 1.

Retention time (Rt), wavelengths of maximum absorption in the UV-Vis region (λmax), and tentative identification of anthocyanin compounds in O. basilicum var. purpurascens (mean ± SD).

Peak Rt (min) λmax (nm) [M + H]+ Main Fragment ESI- MSn [Intensity (%)] Tentative Identification
P1 34.1 520 919 757(49),449(6),287(13) Cyanidin-3-(p-coumaroyl-6′-caffeoyl)sophoroside isomer 1 A
P2 36.4 520 919 757(49),449(6),287(13) Cyanidin-3-(p-coumaroyl-6′-caffeoyl)sophoroside isomer 2 A
P3 38.4 522 1005 757(6),535(11),287(11) Cyanidin-3-(6-p-coumaroyl)sophoroside-5-(6-malonyl)glucoside A
P4 42.8 522 757 595(100),449(11),287(61) Cyanidin-3-(6-p-coumaroyl)glucoside-5-glucoside A
P5 43.2 530 1081 919(15),449(6),287(6) Cyanidin-3-(6-p-coumaroyl-6′-caffeoyl)-5-glucoside isomer1 A
P6 43.9 532 1167 919(44),757(5),287(20) Cyanidin-3-(6-p-coumaroyl-6′-caffeoyl)sophoroside-5-(6-malonyl)glucoside isomer 1 A
P7 44.6 530 1167 919(27),757(5),287(6) Cyanidin-3-(6 p-coumaroyl-6′-caffeoyl)sophoroside-5-(6-malonyl)glucoside isomer 2 A
P8 45.5 530 1081 919(100),449(11),287(20) Cyanidin-3-(6-p-coumaroyl-6′-caffeoyl)sophoroside-5-glucoside isomer2 A
P9 45.9 530 1065 903(20),449(5),287(3) Cyanidin-3-(6,6′-di p-coumaroyl)sophoroside-5-glucoside A
P10 46.4 526 1151 989(10),903(5),287(5) Cyanidin-3-(6,6′-di p-coumaroyl)sophoroside-5-(6-malonyl)glucoside A
P11 47.0 514 1049 887(33),433(9),271(5) Pelargonidin-3-(6,6′-di p-coumaroyl)sophoroside-5-glucoside B
P12 48.0 526 1167 1005(63),919(23),449(8),287(13) Cyanidin-3-(6- p-coumaroyl-X-malonyl-6′-caffeoyl)sophoroside-5-glucoside A
P13 48.7 530 1151 989(28),449(17),287(5) Cyanidin-3-(6- p-coumaroyl-X-malonyl-6′-p-coumaroyl)sophoroside-5-glucoside A

Calibration curves used: A- cyanidin-3-O-glucoside (y = 97,787x − 743,469; R2 = 0.999); B- pelargonidin-3-O-glucoside (y = 43,781x − 275,315; R2 = 0.999).