Table 2 Phytochemicals identified in methanolic extracts of endemic plants species after LC–MS in positive ionization mode.

From: Extracts of select endemic plants from the Republic of Mauritius exhibiting anti-cancer and immunomodulatory properties

Peak no.*

Rt (min)

Protonated [M + H] +M/Z value

Protonated molecular formula

Secondary metabolites

Psiadia lithospermifolia

1

20.74

317.21204

C20H29O3

Cafestol

2

21.25

277.21777

C18H29O2

Stearidonic acid

3

22.85

321.24268

C20H33O3

Isocupressic acid

5

23.85

287.23779

C20 H31 O

Taxadienone

4

23.43

307.26385

C20H35O2

Incensole

6

24.20

291.26880

C20 H35 O

Geranylgeraniol

7

24.91

305.24829

C20H33O2

Unidentified

8

26.10

303.23285

C20 H31 O2

Levopimaric acid

9

26.73

335.25845

C21 H35 O3

Unidentified

Psiadia arguta

10

19.81

375.10925

C19 H19 O8

Methyoxylated flavonol

11

20.01

405.11993

C20 H21 O9

O-Methylated flavonol

12

23.10

449.14548

C22 H25 O10

Sakuranin

13

25.02

307.26349

C20 H35 O2

Incensole

14

25.87

293.28467

C20 H37 O

Diterpene alcohol

15

28.47

333.27951

C22 H37 O2

Fatty acid

16

29.53

335.29468

C22 H39 O2

Fatty acid

17

33.27

377.34232

C25 H45 O2

Unidentified

18

34.63

391.35834

C26 H47 O2

Unidentified

Diospyros nodosa

19

8.07

315.07159

C13 H15 O9

Norbergenin

20

9.12

329.08716

C14 H17 O9

Bergenin

21

13.19

287.05576

C15 H11 O6

Kaempferol

22

14.87

445.11441

C15 H25 O15

Unidentified

23

15.18

433.11411

C21 H21 O10

Kaempferol 7-rhamnoside

25

16.67

459.13019

C23 H23 O10

Unidentified

Mimusops balata

26

10.68

319.04568

C15 H11 O8

Flavonols

27

11.52

333.06100

C16 H13 O8

Myricetin

28

12.22

303.05026

C15 H11 O7

Quercetin

29

13.24

317.06573

C16 H13 O7

O-methylated flavonol

Sideroxylon cinereum

30

9.27

307.08249

C15 H15 O7

Epigallocatechin

31

10.26

303.05029

C15 H11 O7

Quercetin

32

15.47

455.35364

C30 H47 O3

Unidentified

33

22.89

487.34332

C30 H47 O5

Unidentified

34

29.14

439.35742

C30 H47 O2

Unidentified

Erythroxylum laurifolium

35

22.43

355.15997

C14 H27 O10

Unidentified

  1. *Peak numbers are represented on LC–MS chromatograms (positive mode) in Fig. 12.
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