pISSN 1225-7117
eISSN 2288-8268
Active ingredient identified in Q. acuta Thunb. leaf and branch extracts by LC-MS/MS (μg/g)
| No. | Sample | QAL1 | QAL2 | QAL3 | QAB1 | QAB2 | QAB3 |
|---|---|---|---|---|---|---|---|
| 1 | Allopurinol | - | 13.30 | 10.80 | 24.40 | 10.00 | 9.92 |
| 2 | Apigenin | 26.60 | 114.00 | 15.20 | - 4.96 | 7.37 | |
| 3 | Caffeic acid | - | 11.50 | - | 0.56 | 1.23 | 1.57 |
| 4 | Catechin | 7,690.00 | 12,000.00 | 15,400.00 | 7,320.00 | 9,400.00 | 11,300.00 |
| 6 | p-Coumaric acid | 13.00 | 29.40 | 6.50 | 4.48 | 8.34 | 0.77 |
| 7 | Epicatechin | 231.00 | 348.00 | 463.00 | 234.00 | 271.00 | 335.00 |
| 8 | Epicatechin gallate | - | 5.36 | - | 4.51 | 35.30 | 26.30 |
| 9 | Ethyl gallate | 1.59 | 33.10 | 99.10 | - 39.30 | 154.00 | |
| 10 | t-Ferulic acid | 15.90 | 17.30 | 8.46 | 13.40 | 5.38 | 8.51 |
| 11 | Fumaric acid | - | - | - | 20.50 | 15.60 | 2.31 |
| 12 | Gallic acid | 137.00 | 24.30 | 7.57 | 91.80 | 23.80 | 10.40 |
| 13 | Genistein | 9.72 | 38.20 | 4.35 | - | - | 1.31 |
| 14 | Gentisic acid | 86.70 | 163.00 | 4.86 | 8.01 | 4.91 | 29.40 |
| 15 | 4-Hydroxybenzoic acid | - | 9.66 | 6.07 | 7.80 | 4.48 | 3.87 |
| 16 | Hyperoside | 1,930.00 | 3,670.00 | 3,700.00 | 133.00 | 279.00 | 332.00 |
| 17 | Luteolin | 60.50 | 159.00 | 759.00 | 10.40 | 23.50 | 152.00 |
| 18 | Naringenin | 2.71 | 5.00 | 3.45 | 0.52 | 1.60 | 2.88 |
| 19 | Nicotinic acid | 25.80 | 18.80 | 5.82 | - | 5.15 | 11.80 |
| 20 | Protocatechuic acid | 40.30 | 24.60 | 48.31 | 41.30 | 23.90 | 48.40 |
| 21 | Pyrogallol | 66.60 | - | - 11.70 | - | - | |
| 22 | Quercetin | 75.00 | 156.00 | 313.00 | - - | 76.60 | |
| 23 | Riboflavin | 1.95 | 1.87 | - | 0.50 | - | 0.44 |
| 24 | Salicylic acid | 82.60 | 65.50 | 21.70 | 138.00 | 91.50 | 170.00 |
| 25 | Shikimic acid | 135.00 | 114.00 | 146.00 | 133.00 | 184.00 | 159.00 |
| 26 | Syringic acid | 27.80 | 10.60 | 8.31 | 58.90 | 26.30 | 61.00 |
| 27 | Tannic acid | 353.00 | 430.00 | 1,370.00 | 250.00 | 724.00 | 1,520.00 |
| 28 | Taxifolin | 14.20 | 42.80 | 44.10 | 9.63 | 68.90 | 101.00 |
| 29 | Ursolic acid | 8.42 | 215.00 | 265.00 | - | 821.00 | 830.00 |
| 30 | Vanillic acid | 15.20 | 39.10 | 18.40 | 59.80 | 35.80 | 37.00 |
| Total | 11,050.59 | 17,759.39 | 22,729.00 | 8,576.21 | 12,108.95 | 15,392.85 | |