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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 compoundsRT (min)FormulaAreaExact massActivityNature
1Caryophyllene6:22.5C15H241568657760204.188Anaesthetic and anti-inflammatory activities. Gives fragrance and act as metaboliteBicyclic sesquiterpene
2α-Copaene5:55.80C15H241210708553204.1878Antiproliferative and antioxidant propertiessesquiterpene
3Cis-muurola-3,5-diene6:34.10C15H24369140884204.1878Flavoring agentCarbobicyclic sesquiterpene
4Humulene6:35.80C15H241031583140204.1878Flavoring agent, anti-inflammatory and analgesic agentMonocyclic sesquiterpene
5Cyclosativene6:44.60C15H24370318123204.188Antiproliferative, genotoxic and oxidant activitiesTetracyclic sesquiterpene
6Bicyclo[5.3.0]decane, 2-methylene-5-(1-methylvinyl)-8-methyl-6:50.30C15H2427515480204.188Antibacterial, anticancer and antitumor activitiesPresent in sesquiterpenes and diterpenes
7cis-à-Bisabolene6:54.70C15H24240237972204.1878Intermediate in the biosynthesis of hernandulcin which is a natural sweetnerSesquiterpene
81H-Benzocycloheptene, 2,4a,5,6,7,8,9,9a-octahydro-3,5,5-trimethyl-9-methylene-, (4aS-cis)-7:00.20C15H24413675493204.1878Antioxidant activityDiterpenoid
91H-Cyclopropa[a]naphthalene, 1a,2,3,5,6,7,7a,7b-octahydro-1,1,7,7a-tetramethyl-, [1aR-(1aà,7à,7aà,7bà)]7:08.90C15H24649824928204.1878Antibacterial activitySesquiterpene
10Naphthalene, 1,2,3,5,6,8a-hexahydro-4,7-dimethyl-1-(1-methylethyl)-, (1S-cis)7:09.20C15H24279565355204.1878Plant metaboliteSesquiterpene and a carbobicyclic compound
11Benzene, (1,3,3-trimethylnonyl)-7:12.80C18H30231301272246.2348Flavouring agentAromatic hydrocarbon
12Cadala-1(10),3,8-triene7:24.90C15H22291832784202.1722Anti-inflammatory and antibacterial activitiesSesquiterpene
131,6,10-Dodecatrien-3-ol, 3,7,11-trimethyl-, (E)-7:26.90C15H26O427329786222.1984Flavoring and fragrance agentsSesquiterpene alcohol
14Spathulenol7:48.10C15H24O48103606220.1827Plant metabolite, an anaesthetic and a vasodilator agentTricyclic sesquiterpenoid
15Cubenol7:46.60C15H26O339279382222.1984Flavor and fragrance agentSesquiterpene
166S-2,3,8,8-Tetramethyltricyclo[5.2.2.0(1,6)]undec-2-ene7:57.40C15H249681042204.1878Fragrance agentSesquiterpenoid
172-Hydroxy-2,4,4-trimethyl-3-(3-methylbuta-1,3-dienyl)cyclohexanone8:02.80C14H22O2324578226222.162Antimicrobial activityCyclic ketone
18Torreyol8:04.40C15H26O275623562222.1984Antibacterial activityBicyclic tertiary alcohol
19α-Cadinol8:08.20C15H26O197840577222.1984Anti-fungal activitySesquiterpene alcohol
205,6,6-Trimethyl-5-(3-oxobut-1-enyl)-1-oxaspiro[2.5]octan-4-one8:09.20C14H20O331434205236.1412Anti-inflammatory, anti-tumor, anti-septic and anti-microbial activitiesSpiro compound
21α-Bisabolol8:13.30C15H26O38007475222.1984Antiulcer, antiphlogistic effects, antimicrobial, antioxidant and anti-inflammatory activitiesMonocyclic sesquiterpene alcohol
22Tetradecanoic acid, trimethylsilyl ester9:28.10C17H36O2Si218587280300.2485Fragrance ingredientFatty acid
2310-Undecynoic acid, trimethylsilyl ester9:28.30C14H26O2Si224076078254.1702Fragrance ingredientFatty acid
24Hexadecanoic acid, trimethylsilyl ester11:00.30C19H40O2Si470791453328.2798Plant metaboliteHexadecanoate ester
25Isoamyllaurate24:54.3C17H34O24387.8270.2559Fragrance ingredientFatty acid ester