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Chemical analysis of essential oil from the leaves of eugenia argentea Bedd. / Gopan Raj in The journal of essential oil research, Vol. 23 N° 3 (Mai/Juin 2011) 

Public ISBD [article]  in The journal of essential oil research > Vol. 23 N° 3 (Mai/Juin 2011) . - pp. 55-57 Titre : Chemical analysis of essential oil from the leaves of eugenia argentea Bedd. Type de document : texte imprimé Auteurs : Gopan Raj, Auteur ; Varughese George, Auteur ; Mathur G. Sethuraman, Auteur Année de publication : 2011 Article en page(s) : pp. 55-57 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Eugenia  argentea  Myrtaceae  Leaf  oil  composition  β-caryophyllene  δ-cadinene  Germacrene-D Index. décimale : 646 Résumé : The essential oil obtained by hydrodistillation of the leaves of Eugenia argentea was analyzed by GC and GC/MS. Thirty-five constituents comprising 98.5% of the oil were identified. The leaf oil was characterized by the abundance of three major classes of sesquiterpenoids, viz. caryophyllanes, cadinanes and germacranes. β-Caryophyllene (18.0%), δ-cadinene (7.8%) and germacrene-D (7.1%) were the major constituents in the leaf oil. No monoterpenes were detected in the leaf oil. DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2011.9700458 [article] Chemical analysis of essential oil from the leaves of eugenia argentea Bedd. [texte imprimé] / Gopan Raj, Auteur ; Varughese George, Auteur ; Mathur G. Sethuraman, Auteur . - 2011 . - pp. 55-57. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 23 N° 3 (Mai/Juin 2011) . - pp. 55-57 Mots-clés : Eugenia  argentea  Myrtaceae  Leaf  oil  composition  β-caryophyllene  δ-cadinene  Germacrene-D Index. décimale : 646 Résumé : The essential oil obtained by hydrodistillation of the leaves of Eugenia argentea was analyzed by GC and GC/MS. Thirty-five constituents comprising 98.5% of the oil were identified. The leaf oil was characterized by the abundance of three major classes of sesquiterpenoids, viz. caryophyllanes, cadinanes and germacranes. β-Caryophyllene (18.0%), δ-cadinene (7.8%) and germacrene-D (7.1%) were the major constituents in the leaf oil. No monoterpenes were detected in the leaf oil. DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2011.9700458

Chemical composition and antimicrobial activity of the leaf oil from syzygium gardneri thw. / Gopan Raj in The journal of essential oil research, Vol. 20 N°1 (Janvier/Fevrier 2008) 

Public ISBD [article]  in The journal of essential oil research > Vol. 20 N°1 (Janvier/Fevrier 2008) . - pp. 72-74 Titre : Chemical composition and antimicrobial activity of the leaf oil from syzygium gardneri thw. Type de document : texte imprimé Auteurs : Gopan Raj, Auteur ; Varughese George, Auteur ; Nediyaparambil S. Pradeep, Auteur Année de publication : 2008 Article en page(s) : pp. 72-74 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Syzygium  gardneri  Myrtaceae  Essential  oil  composition  Caryophyllene  oxide  Antimicrobial  activity Résumé : Essential oil from the leaves of Syzygium gardneri was isolated by hydrodistillation and analyzed by GC and GC/MS. Twenty compounds representing 88.8% of the oil were identified. The major constituent in the oil was caryophyllene oxide (49.6%). Monoterpenes were detected in low percentage (1.2%). The oil was tested for antimicrobial activity against Gram-positive and Gram-negative bacteria as well as against the fungi Candida albicans and C.glabrata. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2008.9699426 [article] Chemical composition and antimicrobial activity of the leaf oil from syzygium gardneri thw. [texte imprimé] / Gopan Raj, Auteur ; Varughese George, Auteur ; Nediyaparambil S. Pradeep, Auteur . - 2008 . - pp. 72-74. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 20 N°1 (Janvier/Fevrier 2008) . - pp. 72-74 Mots-clés : Syzygium  gardneri  Myrtaceae  Essential  oil  composition  Caryophyllene  oxide  Antimicrobial  activity Résumé : Essential oil from the leaves of Syzygium gardneri was isolated by hydrodistillation and analyzed by GC and GC/MS. Twenty compounds representing 88.8% of the oil were identified. The major constituent in the oil was caryophyllene oxide (49.6%). Monoterpenes were detected in low percentage (1.2%). The oil was tested for antimicrobial activity against Gram-positive and Gram-negative bacteria as well as against the fungi Candida albicans and C.glabrata. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2008.9699426

Essential oil composition of globba schomburgkii hook. f. and globba ophioglossa wight / Gopan Raj in The journal of essential oil research, Vol. 22 N° 3 (Mai/Juin 2010) 

Public ISBD [article]  in The journal of essential oil research > Vol. 22 N° 3 (Mai/Juin 2010) . - pp. 220 - 222 Titre : Essential oil composition of globba schomburgkii hook. f. and globba ophioglossa wight Type de document : texte imprimé Auteurs : Gopan Raj, Auteur ; Varughese George, Auteur ; Mathew Dan, Auteur Année de publication : 2010 Article en page(s) : pp. 220 - 222 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Globba  schomburgkii  Globba  ophioglossa  Zingiberaceae  Essential  oil  composition  b-caryophyllene  Caryophyllene  oxide  Zerumbone Index. décimale : 646 Résumé : Essential oils obtained by hydrodistillation of Globba schomburgkii and G. ophioglossa, whole plants (Zingiberaceae) were analyzed by GC-FID and GC/MS. Twenty-two compounds representing 95.2 % of the oil were identified in the analyzed oil from Globba schomburgkii among which b-caryophyllene (31.7%) and caryophyllene oxide (10.3%) were the major constituents. The oil of G. ophioglossa was characterized by its richness in zerumbone (22.0%) and caryophyllene oxide (21.8%), which were among the 16 components comprising 88.3% of the total oil analyzed. DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.jeoronline.com/archive/detail/51 [article] Essential oil composition of globba schomburgkii hook. f. and globba ophioglossa wight [texte imprimé] / Gopan Raj, Auteur ; Varughese George, Auteur ; Mathew Dan, Auteur . - 2010 . - pp. 220 - 222. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 22 N° 3 (Mai/Juin 2010) . - pp. 220 - 222 Mots-clés : Globba  schomburgkii  Globba  ophioglossa  Zingiberaceae  Essential  oil  composition  b-caryophyllene  Caryophyllene  oxide  Zerumbone Index. décimale : 646 Résumé : Essential oils obtained by hydrodistillation of Globba schomburgkii and G. ophioglossa, whole plants (Zingiberaceae) were analyzed by GC-FID and GC/MS. Twenty-two compounds representing 95.2 % of the oil were identified in the analyzed oil from Globba schomburgkii among which b-caryophyllene (31.7%) and caryophyllene oxide (10.3%) were the major constituents. The oil of G. ophioglossa was characterized by its richness in zerumbone (22.0%) and caryophyllene oxide (21.8%), which were among the 16 components comprising 88.3% of the total oil analyzed. DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.jeoronline.com/archive/detail/51

Volatile constituents and antibacterial activity of eugenia rottleriana wight et arn. leaf oil / Gopan Raj in The journal of essential oil research, Vol. 19 N°6 (Novembre/Decembre 2007) 

Public ISBD [article]  in The journal of essential oil research > Vol. 19 N°6 (Novembre/Decembre 2007) . - pp. 588-590 Titre : Volatile constituents and antibacterial activity of eugenia rottleriana wight et arn. leaf oil Type de document : texte imprimé Auteurs : Gopan Raj, Auteur ; Varughese George, Auteur ; Nediyaparambil S. Pradeep, Auteur Année de publication : 2008 Article en page(s) : pp. 588-590 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Eugenia  rottleriana  Myrtaceae  Essential  oil  composition  Limonene  α—humulene  β—caryophyllene  Antibacterial  activity Résumé : Essential oil obtained by hydrodistillation from the leaves of Eugenia rottleriana was analyzed by GC and GC/MS. Twenty-eight compounds constituting 99.1% of the analyzed sample were identified. The oil was characterized by the predominance of monoterpenes (61.2%) with limonene (50.3%) as the major constituent. α—Humulene (13.3 %), β—caryophyllene (8.8%) and linalool (3.2%) were the other major components. The oil displayed significant antibacterial activity when tested against Bacillus cereus and moderate activity against Serratia marcescens and Escherichia coli. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2007.9699337#.UXJuCkqC5mM [article] Volatile constituents and antibacterial activity of eugenia rottleriana wight et arn. leaf oil [texte imprimé] / Gopan Raj, Auteur ; Varughese George, Auteur ; Nediyaparambil S. Pradeep, Auteur . - 2008 . - pp. 588-590. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 19 N°6 (Novembre/Decembre 2007) . - pp. 588-590 Mots-clés : Eugenia  rottleriana  Myrtaceae  Essential  oil  composition  Limonene  α—humulene  β—caryophyllene  Antibacterial  activity Résumé : Essential oil obtained by hydrodistillation from the leaves of Eugenia rottleriana was analyzed by GC and GC/MS. Twenty-eight compounds constituting 99.1% of the analyzed sample were identified. The oil was characterized by the predominance of monoterpenes (61.2%) with limonene (50.3%) as the major constituent. α—Humulene (13.3 %), β—caryophyllene (8.8%) and linalool (3.2%) were the other major components. The oil displayed significant antibacterial activity when tested against Bacillus cereus and moderate activity against Serratia marcescens and Escherichia coli. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2007.9699337#.UXJuCkqC5mM