## 3 Results
### Qualitative Analysis of Extracts by Liquid Chromatography-Mass Spectrometry (LC-MS)
\begin{table}
\begin{tabular}{c c c c c c c c c} \hline \hline
**No.** & **IR (min)** &
\begin{tabular}{c} **Tentative** \\ **Compound** \\ \end{tabular} & **Class/Type** & **Proposed Formula** & **Measured (nr/s)** & **Error (ppm)** & **MS/MS Ions (nr/s)** \\ \hline
1 & 0.59 & Disaccharide & Carbohydrates & C\({}_{2}\)H\({}_{22}\)O\({}_{11}\) & 341.11 & \(-\)0.75 & 179.03; 89.02; 59.01 \\
2 & 0.60 & Gluconic acid & carbohydrate & C\({}_{4}\)H\({}_{2}\)O\({}_{7}\) & 195.05 & 0.29 & 177.04; 129.02 \\  & & conjugates & & & & & \\
3 & 0.61 & Quintic acid & Cyclic polyols & C\({}_{4}\)H\({}_{2}\)O\({}_{8}\) & 191.06 & \(-\)0.34 & 383.12; 179.05; 85.03 \\
4 & 0.69 & Malica acid & Disturboxide acids & C\({}_{4}\)H\({}_{3}\)O\({}_{8}\) & 133.01 & 0.13 & 115 \\
5 & 0.71 & Citric acid & Tricarboxide acids & C\({}_{4}\)H\({}_{6}\)O\({}_{8}\) & 191.02 & 0.32 & 111.01 \\
6 & 1.10 & Callyallyi & Studying & Tannins & C\({}_{3}\)H\({}_{2}\)O\({}_{8}\) & 331.07 & 0.12 & 331.06; 168.01; 125.02 \\
7 & 1.41 & +Hydroyanogenic acid glucoside & Phenolic glycosides & C\({}_{4}\)H\({}_{2}\)O\({}_{8}\) & 299.08 & 0.10 & 179.03; 137.02; 119.04 \\
8 & 1.43 & Syringy/gluonic acid & Phenolic acids & C\({}_{4}\)H\({}_{2}\)O\({}_{8}\) & 371.10 & \(-\)1.10 & 743.20; 197.04; 191.06; 173.05; 135.05 \\
9 & 2.04 & Protocatech acid & 4 glucoside & Phenolic glycosides & C\({}_{3}\)H\({}_{6}\)O\({}_{8}\) & 315.07 & 0.04 & 305.07; 153.05; 125.01; 109.03 \\
10 & 2.75 & Protocatech acid & Benzoic acid & and derivatives & & & \\
11 & 3.25 & (Epl)catchin O-mesoside & Polyflavonolds & C\({}_{2}\)H\({}_{2}\)O\({}_{8}\) & 451.12 & \(-\)0.22 & 299.07; 242.05; 137.02; 125.02 \\
12 & 5.19 & Epiglallocatechin/Gallocatechin & Flavonoids & C\({}_{3}\)H\({}_{4}\)O\({}_{7}\) & 305.07 & \(-\)0.50 & 261.07; 129.07; 179.03; 165.02; 139.04; \\  & & & & & & & & \\
13 & 5.27 & (Epl)catchin(-4\({}^{\prime}\)B\({}^{\prime}\))- & Flavonoids & C\({}_{3}\)H\({}_{3}\)O\({}_{3}\) & 593.13 & \(-\)0.09 & 423.08; 385.07; \\  & & & & & & & \\
14 & 5.31 & Neochlorogenic acid & Phenolic acids & C\({}_{4}\)H\({}_{2}\)O\({}_{8}\) & 353.09 & \(-\)1.15 & 191.05 \\
15 & 5.70 & Chlorogenic acid & Phenolic acids & C\({}_{4}\)H\({}_{2}\)O\({}_{8}\) & 353.09 & \(-\)1.07 & 191.05 \\
16 & 6.39 & Proxyanthanth B-type dimer 1 & Flavonoids & C\({}_{4}\)H\({}_{2}\)O\({}_{8}\) & 577.13 & 425.09; 407.08; 289.07 \\
17 & 6.85 & Provaxanth B-type dimer 2 & Flavonoids & C\({}_{3}\)H\({}_{6}\)O\({}_{8}\) & 577.13 & \(-\)0.45 & 425.09; 407.08; 289.07 \\
18 & 7.12 & Catechin & Flavonoids & C\({}_{3}\)H\({}_{4}\)O\({}_{8}\) & 299.07 & \(-\)0.15 & 245.08; 205.05; 203.07; 187.04; 179.03; 161.06 \\
19 & 7.13 & Pavementin B2 & Bifavoroids & & & & & \\
20 & 7.50 & Epiatech & Flavonoids & C\({}_{3}\)H\({}_{4}\)O\({}_{8}\) & 863.18 & \(-\)0.53 & 711.31 41.08; 289.07 \\
21 & 7.74 & Proxyanthanth A-type trimer 1 & Flavonoids & C\({}_{4}\)H\({}_{2}\)O\({}_{8}\) & 863.18 & \(-\)0.32 & & \\
22 & 7.95 & Provaxanth B-type trimer 1 & Flavonoids & C\({}_{4}\)H\({}_{3}\)O\({}_{8}\) & 865.20 & \(-\)0.84 & 739.18; 695.12 ; 577.41; 451.11; 407.08; 289.07 \\
23 & 8.12 & Provaxanth A-type trimer 2 & Flavonoids & C\({}_{4}\)H\({}_{3}\)O\({}_{8}\) & 863.18 & 0.04 & 711.15; 693.12; 599.08; 411.07; 289.07 \\
24 & 8.29 & Provaxanth B-type trimer 2 & Flavonoids & C\({}_{4}\)H\({}_{3}\)O\({}_{8}\) & 865.20 & \(-\)0.70 & 729.18; 654.57; 577.44; 451.111; 407.08; 289.07 \\
25 & 8.44 & Provaxanth B-type tetramer 1 & Flavonoids & C\({}_{4}\)H\({}_{3}\)O\({}_{8}\) & 865.20 & \(-\)0.70 & 729.18; 655.21; 577.14; 445.111; 41.07.08; 289.07 \\
26 & 8.74 & Provaxanth B-type tetramer 2 & Flavonoids & C\({}_{4}\)H\({}_{3}\)O\({}_{8}\) & 1153.26 & \(-\)1.27 & 983.19; 685.21; 577.14; 449.09; 407.08; 287.06 \\
27 & 8.87 & (2R/s)-Methyl3-methylene- & & & & & \\
28 & 9.19 & 3.4-Docker/double acid & Phenolic acids & C\({}_{3}\)H\({}_{2}\)O\({}_{8}\) & 515.12 & \(-\)0.22 & 353.09; 191.06 \\ \hline \hline \end{tabular}
\end{table}