Table 2.
Quantitative results (mg/g sample) for polyphenolic fraction of the spearmint extract analyzed.
| ID a | Compounds | Quantified as… | Concentration (mg/g) |
|---|---|---|---|
| 4 | Dihydroxyphenyllactic acid (Danshensu) | Caffeic acid | 0.77 ± 0.09 |
| 5 | Protocatecuic acid hexoside | Caffeic acid | 0.04 ± 0.00 |
| 7 | Hydroxybenzoic acid | Caffeic acid | 0.57 ± 0.07 |
| 8 | Caftaric Acid | Caftaric acid | 2.18 ± 0.30 |
| 9 | Hydroxyphenyllactic acid | Caffeic acid | 0.07 ± 0.00 |
| 10 | Luteolin-8-C-glucoside (orientin) | Luteolin-4-glucoside | 0.02 ± 0.00 |
| 11 | 3′-Caffeoylquinic (neochlorogenic acid) | 3′-Caffeoylquinic b | 1.79 ± 0.22 |
| 14 | Coumaric acid | Caffeic acid | 0.03 ± 0.00 |
| 15 | Salvianolic Acid F | Caffeic acid | 0.01 ± 0.00 |
| 16 | Dicaffeic acid | Caffeic acid | 0.09 ± 0.00 |
| 17 | 5′-Caffeoylquinic (chlorogenic acid) | 5′-Caffeoylquinic b | 1.16 ± 0.08 |
| 18 | Caffeic acid | Caffeic acid | 0.71 ± 0.06 |
| 20 | Rosmarinic acid derivative | Rosmarinic acid | 2.17 ± 0.25 |
| 21 | Rosmarinic acid derivative | Rosmarinic acid | 1.61 ± 0.11 |
| 22 | Feruloylquinic acid | 3′-Caffeoylquinic | 0.11 ± 0.00 |
| 24 | Danshensu derivative | Caffeic acid | 0.01 ± 0.00 |
| 25 | Rosmarinic acid-O-caffeic acid | Rosmarinic acid | 0.05 ± 0.00 |
| 26 | Salvianolic acid J/isomer | Salvianolic acid A | 1.84 ± 0.17 |
| 28 | Rosmarinic acid-rutinoside | Rosmarinic acid | 0.17 ± 0.00 |
| 29 | Quercetin-rutinoside (rutin) | Rutin b | 0.01 ± 0.00 |
| 30 | Salvianolic acid J/isomer | Salvianolic acid A | 0.36 ± 0.05 |
| 31 | Luteolin-rutinoside | Luteolin-4-glucoside | 0.17 ± 0.01 |
| 32 | Rosmarinic acid-O-hexoside | Rosmarinic acid | 0.28 ± 0.03 |
| 33 | Luteolin-hexoside | Luteolin-4-glucoside | 0.02 ± 0.00 |
| 34 | Luteolin-7-glucuronide | Luteolin-4-glucoside | 0.13 ± 0.00 |
| 35 | Salvianolic acid B/E/isomer | Salvianolic acid B | 0.41 ± 0.05 |
| 36 | Narirutin (Naringenin-7-O-rutinoside) | Narirutin b | 0.04 ± 0.01 |
| 37 | Salvianolic Acid D | Rosmarinic acid | 0.29 ± 0.02 |
| 38 | Sagerinic Acid | Rosmarinic acid | 8.93 ± 1.10 |
| 39 | Salvianolic Acid E | Salvianolic acid B | 0.16 ± 0.02 |
| 40 | Rosmarinic Acid | Rosmarinic acid b | 173.76 ± 11.52 |
| 41 | Sagerinic Acid isomer | Rosmarinic acid | 40.05 ± 2.20 |
| 42 | Salvianolic Acid A derivative | Salvianolic acid A | 1.44 ± 0.30 |
| 43 | Lithospermic Acid | Lithospermic acid b | 3.81 ± 0.26 |
| 44 | Salvianolic Acid B | Salvianolic acid B b | 1.35 ± 0.16 |
| 45 | Dehydro-Rosmarinic Acid | Rosmarinic acid | 0.52 ± 0.01 |
| 46 | Salvianolic acid B/E/isomer | Salvianolic acid B | 0.30 ± 0.03 |
| 47 | Rosmarinic acid-dihexoside | Rosmarinic acid | 0.16 ± 0.01 |
| 49 | Salvianolic Acid A | Salvianolic acid A b | 7.79 ± 0.52 |
| 51 | Salvianolic Acid A isomer | Salvianolic acid A | 0.31 ± 0.06 |
| 52 | Rosmarinic acid derivative | Rosmarinic acid | 0.28 ± 0.02 |
| 53 | Danshensu derivative | Caffeic acid | 0.06 ± 0.00 |
| 54 | Danshensu derivative | Caffeic acid | 0.03 ± 0.00 |
| 55 | Danshensu derivative | Caffeic acid | 0.05 ± 0.00 |
| 56 | Rosmarinic acid derivative | Rosmarinic acid | 0.10 ± 0.01 |
| 57 | Apigenin | Daidzein | 0.19 ± 0.01 |
| 58 | Salvianolic Acid A isomer | Salvianolic acid A | 0.69 ± 0.02 |
| 60 | Salvianolic Acid B derivative | Salvianolic acid B | 0.05 ± 0.00 |
| 61 | Rosmarinic acid derivative | Rosmarinic acid | 0.67 ± 0.04 |
| 62 | Rosmarinic acid derivative | Rosmarinic acid | 0.09 ± 0.00 |
| 63 | Rosmarinic acid derivative | Rosmarinic acid | 0.01 ± 0.00 |
| 64 | Rosmarinic acid derivative | Rosmarinic acid | 1.30 ± 0.16 |
| 66 | Rosmarinic acid derivative | Rosmarinic acid | 0.09 ± 0.00 |
| Hydroxybenzoic acids c | 0.61 ± 0.08 | ||
| Hydroxycinnamic acids | 3.00 ± 0.36 | ||
| Caffeoylquinic acids | 3.06 ± 0.27 | ||
| Hydroxyphenylpropanoic acids | 0.99 ± 0.10 | ||
| Rosmarinic acid derivatives | 230.50 ± 13.5 | ||
| Salvianolic acids | 14.70 ± 1.19 | ||
| Flavones | 0.53 ± 0.02 | ||
| Flavonols | 0.01 ± 0.00 | ||
| Flavanones | 0.04 ± 0.01 | ||
| Total Phenolics | 262.97 ± 15.90 |
a See Table 1 for peak assignment; b Quantified by comparison with its corresponding standard; c hydroxybenzoic acids include compound 5 and 7; hydroxycinnamic acids, compounds 8, 14, 16, and 18; caffeoylquinic acids, 11, 17, and 22; hydroxyphenylpropanoic acids, 4, 9, 24, and 53–55; rosmarinic acid derivatives, 20, 21, 25, 28, 32, 37, 38, 40, 41, 45, 47, 52, 56, 61–64, and 66; salvianolic acids, 15, 26, 30, 35, 39, 42, 44, 46, 49, 51, 58, and 60; flavones, 31, 33, 34, and 57; flavonols, 29; and flavanones, 36. Mean (n = 3) ± SD.