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Table 5 Main metabolites identified by CG-MS in the hexane phases of M. albicans. LHxP: Leaves-hexane phase; SHxP: Stems-hexane phase. + : presence; -: absence

From: Medicinal plant Miconia albicans synergizes with ampicillin and ciprofloxacin against multi-drug resistant Acinetobacter baumannii and Staphylococcus aureus

No

Rt

(min)

Molecular Formula

[M]+

Identification

Product ion (m/z)

(Relative intensity %)

LHxP

SHxP

22

5.894

C21H44

296

Heneicosane

57 (100); 71 (94); 85 (63); 99 (31)

 + 

 + 

23

7.128

C30H50

410

Squalenea

69 (100); 81 (67); 95 (21)

 + 

-

24

10.475

C27H56O

396

Heptacosanol

55 (62); 57 (97); 97 (100); 111 (55); 139 (16)

 + 

 + 

25

11.376

C29H50O2

430

Vitamin Ea

165 (100); 430 (58)

 + 

-

26

12.436

C30H60O2

452

n.i

97 (100); 111 (57); 71 (55)

 + 

 + 

27

13.510

C28H48O

400

Campesterola

55 (61); 81 (83); 95 (88); 107(83); 133 (52); 145 (100); 159 (66); 199 (26); 213 (59); 231 (28); 255 (41); 273 (23); 289 (35); 315 (43); 367 (38); 382 (44)

-

 + 

28

15.566

C29H50O

414

β-Sitosterola

81 (90); 95 (80); 145 (100); 213 (58); 255 (45); 303 (27); 329 (36); 381 (38)

 + 

 + 

29

16.624

C30H50O

426

β-Amyrina

69 (25); 95 (41); 135 (39); 161 (30); 175 (18); 189 (45); 203 (37); 218 (100); 411 (2)

 + 

 + 

30

17.224

C30H48O

424

β /α-Amyrone

189 (37); 203 (38); 218 (100)

 + 

 + 

31

17.893

C30H50O

426

α-Amyrina

69 (25); 95 (41); 135 (39); 161 (30); 175 (18); 189 (45); 203 (37); 218 (100); 411 (2)

 + 

 + 

32

19.473

C29H48O

412

Stigmast-4-en-3-one

81 (20); 95 (24); 107 (20); 124 (100); 147 (25); 149 (22); 229 (38); 289 (17); 370 (6); 398 (3)

 + 

 + 

  1. aConfirmed with reference compounds. N.i. not identified