Table 1 Classification of 108 rhubarb components on the basis of fuzzy chemical identification
Categoryâ–² | Confirmed component (No., RT) | Remaining component attribution (RT) |
|---|---|---|
Rh-01 | Aloe-emodin (90, 17.70) | 68 (12.58), 78 (14.51), 93 (18.13), 96 (18.46), 99 (19.27) |
Rhein (95, 18.33) | ||
Emodin (100, 19.99) | ||
Chrysophanol (102, 21.24) | ||
Physcion (105, 22.00) | ||
Rh-02 | Aloe-emodin 8-O-β-D-glucoside (30, 6.31) | 10 (3.11), 22 (4.76), 28 (5.65), 36 (6.97), 49 (9.84), 52 (10.28), 55 (10.64), 64 (11.67), 80 (15.11), 83 (15.72), 86 (16.24), 89 (17.48), 92 (17.76), 97 (18.94) |
Rhein 8-O-β-D-glucoside (32, 6.60) | ||
Emodin 1-O-β-D-glucoside (58, 10.97) | ||
Chrysophanol 1-O-β-D-glucoside (72, 13.50) | ||
Emodin 8-O-β-D-glucoside (76, 13.90) | ||
Chrysophanol 8-O-β-D-glucoside (77, 14.05) | ||
Physcion 8-O-β-D-glucoside (85, 16.12) | ||
Rh-03 | Sennoside B (34, 6.82) | 47 (9.57), 50 (9.96), 53 (10.38), 63 (11.41), 73 (13.52) |
Sennoside A (46, 9.56) | ||
Rh-04 | Cianidanol (11, 3.24) | 7 (2.75), 8 (2.83), 12 (3.29), 19 (4.25), 20 (4.45), 25 (5.13), 29 (6.19), 37 (7.11), 54 (10.48), 61 (11.29), 69 (12.79), 84 (16.06) |
(-)-Epicatechin (18, 4.24) | ||
(-)-Epicatechin gallate (31, 6.60) | ||
Procyanidin B2 (14, 3.76) | ||
Rh-05 | Gallic acid (4, 1.38) | 3 (1.19), 5 (1.84), 6 (2.12), 9 (3.00), 13 (3.40), 23 (4.76), 26 (5.18), 44 (8.83), 62 (11.34), 70 (13.09), 79 (14.66), 91 (17.74) |
Rh-06 | Resveratroloside (24, 4.86) | 40 (7.79), 42 (8.01), 43 (8.28), 57 (10.82), 104 (21.72) |
Rh-07 | Torachrysone 8-O-glucoside (74, 13.55) | 21 (4.52), 81 (15.44) |
Rh-08 | Raspberryketone glucoside (17, 4.10) | 39 (7.68), 60 (11.16), 75 (13.73), 82 (15.60), 87 (16.61) |
Lindleyin (33, 6.70) | ||
4-(4-Hydroxyphenyl)-2-butanone (38, 7.41) | ||
Rh-09 | 5-Acetyl-7-hydroxy-2-methyl-chromone (59, 11.06) | 15 (3.82), 16 (3.90), 41 (7.99), 48 (9.68), 56 (10.66), 98 (19.09) |
Rh-10 | - | 65 (11.72), 67 (12.10), 101 (21.08), 103 (21.31) |
Others | - | 1 (0.81), 2 (0.94), 27 (5.35), 35 (6.96), 45 (9.31), 51 (10.12), 66 (11.90), 71 (13.25), 88 (17.26), 94 (18.15), 106 (22.28), 107 (23.23), 108 (23.77) |