Table 3 LC-MS characteristics of phenolic compounds according to signal no (S.N.), retention times (R.T.) (min), and molecular ions [M-H ⁺ ](m/z) at fragment ion 80 eV

1

1,6

169

Gallic acid

1B, 1C, 2B, 2C, 3B, 3C, 4B, 4C, 5B, 5C, 6B, 6C,

2

6,17

353

Chlorogenic acid

1A,1B, 1C, 2A, 2B, 2C, 3A, 4B, 5B, 5C, 6B, 6C

3

6,53

179

Caffeic acid

1B, 1C, 2B, 2C, 3B, 3C, 4B, 4C, 5B, 5C, 6B,6C

4

7,3

197

Syringic acid

4C, 2B, 2C, 4B, 5B, 5C, 6B, 6C

5

7,34

289

(−)-Epicatechin

3C

6

8,28

163

ρ-coumaric acid

1B, 1C, 2C, 3B, 3C, 4B, 4C, 5B, 6C

7

8,9

193

Ferrulic acid

1C, 2C, 4B, 5B, 6C

8

9,72

431

Vitexin

1C, 2B, 2C, 4B, 5B, 6B, 6C

9

10,6

359

Rosmarinic acid

2B, 2C, 3B, 3C, 4B, 4C, 5B, 5C, 6B, 6C

10

10,69

579

Naringin

1B, 1C, 2B, 2C, 3B, 4B, 5B, 5C, 6B, 6C

11

10,76

609

Rutin hidrat

1B, 1C, 2B, 3B, 3C, 4B, 5B, 6B, 6C

12

11,12

610

Hesperidine

1B, 5B, 5C, 6B, 6C

13

11,65

431

Apigenin 7glikozide

1B, 1C, 2B, 2C, 3B, 3C, 4B, 4C, 5B, 5C, 6B, 6C

14

11,96

539

Oleuropein

1C, 3C, 4B, 5B, 6B, 6C

15

12,57

147

trans-cinnamic acid

16

13,47

301

Quercetin

1C, 4B, 4C, 5B, 5C, 6B, 6C

17

13,613

271

(±)-Naringenin

1B, 1C, 2B, 2C, 3C, 4B, 4C, 5B, 5C, 6C

18

14,36

285

Luteolin

1B, 1C, 2B, 2C, 3B, 3C, 4B, 4C, 5B, 5C, 6B, 6C