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Yeshwantpur, India

Murugan R.,SASTRA University | Mallavarapu G.R.,Renaissance Temple Bells | Sudha V.,SASTRA University | Brindha P.,SASTRA University
Natural Product Communications | Year: 2013

Volatile oil extracted from the leaves of Pogostemon hirsutus Benth., a rare species from Anamalai hills of the Western Ghats of Tamil Nadu, India was analyzed by GC-FID and GC-MS. Fifty-four compounds amounting to 90.8% of the oil were identified. The oil was rich in monoterpenes and diterpenes. The major components of the oil were α-pinene (11.5%), sabinene (8.5%), β-pinene (5.2%), abietatriene (16.3%), dehydroabietal (3.5%) and dehydroabietol (21.0%). Abietane diterpenes are reported for the first time in the genus Pogostemon of Lamiaceae with six abietanes representing 42.6% of the oil. Source


Chandrika R.,Bangalore University | Thara Saraswathi K.J.,Bangalore University | Mallavarapu G.R.,Renaissance Temple Bells
Journal of Essential Oil-Bearing Plants | Year: 2015

Essential oils of the leaf and root of Eryngium foetidum L. from Port Blair (Andaman and Nicobar) and Nadugani (Tamil Nadu) in India were investigated by GC and GC-MS analyses. The oils of the leaf and root from the two locations were found to contain alkanes, alkanals, alkenals, fatty acids, aromatic aldehydes, mono-, sesqui- and diterpenes, aromatic aldehydes and terpene aldehyde esters. The main components of the oil of the leaf from Port Blair were identified as a trimethyl benzaldehyde (16.5 %), dodecanal (4.7 %), muurola- 4,10(14)-dien-1α-ol (10.2 %), neophytadiene isomer (4.5 %), hexahydrofarnesyl acetone (5.5 %), palmitic acid (4.6 %) and phytol (4.9 %). The composition of the root oil from Port Blair was found to be qualitatively similar to that of leaf oil, having the major constituents two isomers of trimethyl benzaldehydes (4.00 % and 57.0 %) and 2-formyl 1,1,5-trimethyl 2,5-cyclohexadien-4-yl-2-methylbutenoate (4.9 %). The leaf and root oils from Nadugani were found to be qualitatively similar but differed widely in their composition from the oils of Port Blair origin. The principal constituents of the oils of the leaf and root from Nadugani were found to be a trimethyl benzaldehyde (14.3 % and 24.1 %), (E)-2-dodecenal (2.8 % and 14.3 %), τ-cadinol (5.1 % and 7.3 %) and α-cadinol (6.9 % and 10.2 %). Many compounds which were hitherto not reported in the essential oils of E. foetidum were identified in the oils from the two locations in India. © 2015, Har Krishan Bhalla & Sons. Source


Mallavarapu G.R.,Renaissance Temple Bells | Syamasundar K.V.,Central Institute of Medicinal and Aromatic Plants Research Center | Rameshc S.,Research Center | Rajeswara Rao B.R.,Central Institute of Medicinal and Aromatic Plants Research Center
Natural Product Communications | Year: 2012

The essential oils isolated from vetiver [Vetiveria zizanioides (L.) Nash.] roots collected from four locations in south India were analyzed by GC-FID and GCMS. Eighty constituents, representing 94.5-97.8% of the oils, have been identified. The oils from Bangalore, Hyderabad, Kundapur, and Mettupalayam were rich in sesquiterpenes and oxygenated sesquiterpenes with cedrane, bisabolane, eudesmane, eremophilane, and zizaane skeletons. The main components of the four essential oils were: eudesma-4,6-diene (δ-selinene) + β-vetispirene (3.9-6.1%), β-vetivenene (0.9-9.4%), 13-nor-trans-eudesma-4(15),7-dien-11- one + amorph-4-en-10-ol (5.0-6.4%), trans-eudesma-4(15),7-dien-12-ol (vetiselinenol) + (E)-opposita-4(15),7(11)-dien-12-ol (3.7-5.9%), eremophila-1(10),11-dien- 2α-ol (nootkatol) + ziza-6(13)-en-12-ol (khusimol) (16.1-19.2%), and eremophila-1(10),7(11)-dien-2α-ol (isonootkatol) + (E)-eremophila-1(10),7(11)-12-ol (isovalencenol) (5.6-6.9%). The important compounds that impart the characteristic vetiver odor are: khusimene, δ-selinene, β-vetivenene, cyclocopacamphan-12-ol (epimers A and B), vetiselinenol, khusimol, isovalencenol, khusimone, α-vetivone, and β-vetivone. The chemical profiles of the oils are comparable to Haitian vetiver oil. Source


Murugan R.,Sikkim University | Mallavarapu G.R.,Renaissance Temple Bells
Natural Product Communications | Year: 2012

The essential oil of Pogostemon travancoricus Bedd. var. travancoricus collected from the Agasthyamalai region of Tamil Nadu, India was analyzed by GC and GC-MS. The major components of the oil were bicyclogermacrene (16.0%), cis-calamenene (6.3%), germacrene B (11.1%), spathulenol (7.6%), viridiflorol (5.8%), α-cadinol (4.2%) and pogostone (9.9%). Source


Kumari R.,Jawaharlal Nehru University | Kumari R.,National Institute of Plant Genome Research NIPGR | Mallavarapu G.R.,Renaissance Temple Bells | Jain V.K.,Jawaharlal Nehru University | Kumar S.,National Institute of Plant Genome Research NIPGR
Natural Product Communications | Year: 2012

Fatty oils of the seeds of Cleome viscosa accessions from Delhi, Jaipur, Faridabad, Surajkund and Hyderabad were methylated and analyzed by GC and GC-MS.The major fatty acids, identified as their methyl esters, of the oils from these five locations were palmitic acid (10.2-13.4%), stearic acid (7.2-10.2%), oleic acid (16.9-27.1%) and linoleic acid (47.0-61.1%). In addition, palmitoleic acid,octadec-(11E)-enoicacid, arachidic acid, eicosa-(11Z)-enoic acid, linolenic acid, heneicosanoic acid, behenic acid, lignoceric acid, pentacosanoic acid, hexacosanoic acid, 12-oxo-stearic acid, and the alkanes tetracosane, pentacosane, hexacosane, heptacosane, octacosane, nonacosane, triocontane, hentriacontane and dotriacontane, were also identified as minor and trace constituents in some of these oils. Source

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