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Table 2 Identification of phytochemicals in guava leaf extract by GC–MS

From: Extraction of bioactive compounds from Psidium guajava and their application in dentistry

S. no.

Identified compounds

RT (min)

Formula

Area

Exact mass

Activity

Nature

1

Caryophyllene

6:22.5

C15H24

1568657760

204.188

Anaesthetic and anti-inflammatory activities. Gives fragrance and act as metabolite

Bicyclic sesquiterpene

2

α-Copaene

5:55.80

C15H24

1210708553

204.1878

Antiproliferative and antioxidant properties

sesquiterpene

3

Cis-muurola-3,5-diene

6:34.10

C15H24

369140884

204.1878

Flavoring agent

Carbobicyclic sesquiterpene

4

Humulene

6:35.80

C15H24

1031583140

204.1878

Flavoring agent, anti-inflammatory and analgesic agent

Monocyclic sesquiterpene

5

Cyclosativene

6:44.60

C15H24

370318123

204.188

Antiproliferative, genotoxic and oxidant activities

Tetracyclic sesquiterpene

6

Bicyclo[5.3.0]decane, 2-methylene-5-(1-methylvinyl)-8-methyl-

6:50.30

C15H24

27515480

204.188

Antibacterial, anticancer and antitumor activities

Present in sesquiterpenes and diterpenes

7

cis-à-Bisabolene

6:54.70

C15H24

240237972

204.1878

Intermediate in the biosynthesis of hernandulcin which is a natural sweetner

Sesquiterpene

8

1H-Benzocycloheptene, 2,4a,5,6,7,8,9,9a-octahydro-3,5,5-trimethyl-9-methylene-, (4aS-cis)-

7:00.20

C15H24

413675493

204.1878

Antioxidant activity

Diterpenoid

9

1H-Cyclopropa[a]naphthalene, 1a,2,3,5,6,7,7a,7b-octahydro-1,1,7,7a-tetramethyl-, [1aR-(1aà,7à,7aà,7bà)]

7:08.90

C15H24

649824928

204.1878

Antibacterial activity

Sesquiterpene

10

Naphthalene, 1,2,3,5,6,8a-hexahydro-4,7-dimethyl-1-(1-methylethyl)-, (1S-cis)

7:09.20

C15H24

279565355

204.1878

Plant metabolite

Sesquiterpene and a carbobicyclic compound

11

Benzene, (1,3,3-trimethylnonyl)-

7:12.80

C18H30

231301272

246.2348

Flavouring agent

Aromatic hydrocarbon

12

Cadala-1(10),3,8-triene

7:24.90

C15H22

291832784

202.1722

Anti-inflammatory and antibacterial activities

Sesquiterpene

13

1,6,10-Dodecatrien-3-ol, 3,7,11-trimethyl-, (E)-

7:26.90

C15H26O

427329786

222.1984

Flavoring and fragrance agents

Sesquiterpene alcohol

14

Spathulenol

7:48.10

C15H24O

48103606

220.1827

Plant metabolite, an anaesthetic and a vasodilator agent

Tricyclic sesquiterpenoid

15

Cubenol

7:46.60

C15H26O

339279382

222.1984

Flavor and fragrance agent

Sesquiterpene

16

6S-2,3,8,8-Tetramethyltricyclo[5.2.2.0(1,6)]undec-2-ene

7:57.40

C15H24

9681042

204.1878

Fragrance agent

Sesquiterpenoid

17

2-Hydroxy-2,4,4-trimethyl-3-(3-methylbuta-1,3-dienyl)cyclohexanone

8:02.80

C14H22O2

324578226

222.162

Antimicrobial activity

Cyclic ketone

18

Torreyol

8:04.40

C15H26O

275623562

222.1984

Antibacterial activity

Bicyclic tertiary alcohol

19

α-Cadinol

8:08.20

C15H26O

197840577

222.1984

Anti-fungal activity

Sesquiterpene alcohol

20

5,6,6-Trimethyl-5-(3-oxobut-1-enyl)-1-oxaspiro[2.5]octan-4-one

8:09.20

C14H20O3

31434205

236.1412

Anti-inflammatory, anti-tumor, anti-septic and anti-microbial activities

Spiro compound

21

α-Bisabolol

8:13.30

C15H26O

38007475

222.1984

Antiulcer, antiphlogistic effects, antimicrobial, antioxidant and anti-inflammatory activities

Monocyclic sesquiterpene alcohol

22

Tetradecanoic acid, trimethylsilyl ester

9:28.10

C17H36O2Si

218587280

300.2485

Fragrance ingredient

Fatty acid

23

10-Undecynoic acid, trimethylsilyl ester

9:28.30

C14H26O2Si

224076078

254.1702

Fragrance ingredient

Fatty acid

24

Hexadecanoic acid, trimethylsilyl ester

11:00.30

C19H40O2Si

470791453

328.2798

Plant metabolite

Hexadecanoate ester

25

Isoamyllaurate

24:54.3

C17H34O2

4387.8

270.2559

Fragrance ingredient

Fatty acid ester