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Chemical composition, and antioxidant and antimicrobial activities of alpinia nutans rosc. / Sushil Joshi in The journal of essential oil research, Vol. 22 N° 1 (Janvier/Fevrier 2010) 

Public ISBD [article]  in The journal of essential oil research > Vol. 22 N° 1 (Janvier/Fevrier 2010) . - pp. 85-90 Titre : Chemical composition, and antioxidant and antimicrobial activities of alpinia nutans rosc. Type de document : texte imprimé Auteurs : Sushil Joshi, Auteur ; Om Prakash, Auteur ; Anil K. Pant, Auteur Article en page(s) : pp. 85-90 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Alpinia  nutans  Zingiberaceae  Essential  oil  composition  Sabinene  1,8-cineole  Terpinen-4-ol  γ-terpinene  Antioxidant  activity  Antimicrobial  activity Index. décimale : 646 Résumé : The essential oils of the aerial parts and flowers of Alpinia nutans Rosc. were analyzed by GC and GC/MS. Oil from aerial parts was rich in monoterpenoids (85.7%) with sabinene (27.8%), 1,8-cineole (17.4%), terpinen-4-ol (14.9%), p-cymene (5.2%), γ-terpinene (5.1%), cis-sabinene hydrate (1.3%) and linalool (3.3%) as the major components identified, and with β-caryophyllene (3.9%) and caryophyllene oxide (1.3%) as sesquiterpenoids. Terpinen-4-ol (25.1%), γ-terpinene (19.4%), sabinene (14.2%), 1,8-cineole (10.8%), linalool (1.6%) and caryophyllene oxide (1.0%) were the major components characterized in the flower oil. The oils were evaluated for DPPH radical scavenging ability, chelation of Fe+2, and reducing power activities. Further, these oils were also examined for their antimicrobial activities against Pasteurella multocida, Escherichia coli, Salmonella enterica, Shigella flexneri and Staphylococcus aureus. The aerial parts oil was found to be more active than the flower oil in all the cases. DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.jeoronline.com/archive/detail/47 [article] Chemical composition, and antioxidant and antimicrobial activities of alpinia nutans rosc. [texte imprimé] / Sushil Joshi, Auteur ; Om Prakash, Auteur ; Anil K. Pant, Auteur . - pp. 85-90. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 22 N° 1 (Janvier/Fevrier 2010) . - pp. 85-90 Mots-clés : Alpinia  nutans  Zingiberaceae  Essential  oil  composition  Sabinene  1,8-cineole  Terpinen-4-ol  γ-terpinene  Antioxidant  activity  Antimicrobial  activity Index. décimale : 646 Résumé : The essential oils of the aerial parts and flowers of Alpinia nutans Rosc. were analyzed by GC and GC/MS. Oil from aerial parts was rich in monoterpenoids (85.7%) with sabinene (27.8%), 1,8-cineole (17.4%), terpinen-4-ol (14.9%), p-cymene (5.2%), γ-terpinene (5.1%), cis-sabinene hydrate (1.3%) and linalool (3.3%) as the major components identified, and with β-caryophyllene (3.9%) and caryophyllene oxide (1.3%) as sesquiterpenoids. Terpinen-4-ol (25.1%), γ-terpinene (19.4%), sabinene (14.2%), 1,8-cineole (10.8%), linalool (1.6%) and caryophyllene oxide (1.0%) were the major components characterized in the flower oil. The oils were evaluated for DPPH radical scavenging ability, chelation of Fe+2, and reducing power activities. Further, these oils were also examined for their antimicrobial activities against Pasteurella multocida, Escherichia coli, Salmonella enterica, Shigella flexneri and Staphylococcus aureus. The aerial parts oil was found to be more active than the flower oil in all the cases. DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.jeoronline.com/archive/detail/47

Chemical composition, antioxidant and myorelaxant activity of essential oils of Globba sessiliflora Sims / Ravendra Kumar in The journal of essential oil research, Vol. 24 N° 4 (Août 2012) 

Public ISBD [article]  in The journal of essential oil research > Vol. 24 N° 4 (Août 2012) . - pp. 385-391 Titre : Chemical composition, antioxidant and myorelaxant activity of essential oils of Globba sessiliflora Sims Type de document : texte imprimé Auteurs : Ravendra Kumar, Auteur ; Om Prakash, Auteur ; A.K. Pant, Auteur Année de publication : 2012 Article en page(s) : pp. 385-391 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Globba  sessiliflora  Sims  Zingiberaceae  β-caryophyllene  Myrcene  Longipinene  Selin-11-en-α-ol  Antioxidant  activity  Myorelaxant  activity Résumé : The volatile constituents of the rhizomes and aerial parts of Globba sessiliflora Sims were analyzed by a combination of gas chromatography (GC) and gas chromatography–mass spectrometry (GC–MS). The major constituents identified in the rhizome oil were β-caryophyllene (20.1%), α-cadinol (14.7%), selin-11-en-4α-ol (12.0%), caryophyllene oxide (8.6%), γ-eudesmol (7.1%) and myrcene (4.7%). The oil from aerial part contained myrcene (15.8%), β-caryophyllene (12.3%), selin-11-en-4α-ol (11.0%), β-longipinene (10.9), manool (8.1%), germacrene D (5.2%) and β-eudesmol (4.1%) as major constituents. Both the oils showed significant myorelaxant effect on isolated duodenum smooth muscles of Wistar rats. The antioxidant activity of the oils were evaluated by different methods, namely reducing power assay, 2,2-diphenyl-1-picrylhydrazyl (DPPH) assay and the chelating effect on Fe2+. The oils exhibited good to moderate antioxidant activity in a dose-dependent manner. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.692915 [article] Chemical composition, antioxidant and myorelaxant activity of essential oils of Globba sessiliflora Sims [texte imprimé] / Ravendra Kumar, Auteur ; Om Prakash, Auteur ; A.K. Pant, Auteur . - 2012 . - pp. 385-391. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 24 N° 4 (Août 2012) . - pp. 385-391 Mots-clés : Globba  sessiliflora  Sims  Zingiberaceae  β-caryophyllene  Myrcene  Longipinene  Selin-11-en-α-ol  Antioxidant  activity  Myorelaxant  activity Résumé : The volatile constituents of the rhizomes and aerial parts of Globba sessiliflora Sims were analyzed by a combination of gas chromatography (GC) and gas chromatography–mass spectrometry (GC–MS). The major constituents identified in the rhizome oil were β-caryophyllene (20.1%), α-cadinol (14.7%), selin-11-en-4α-ol (12.0%), caryophyllene oxide (8.6%), γ-eudesmol (7.1%) and myrcene (4.7%). The oil from aerial part contained myrcene (15.8%), β-caryophyllene (12.3%), selin-11-en-4α-ol (11.0%), β-longipinene (10.9), manool (8.1%), germacrene D (5.2%) and β-eudesmol (4.1%) as major constituents. Both the oils showed significant myorelaxant effect on isolated duodenum smooth muscles of Wistar rats. The antioxidant activity of the oils were evaluated by different methods, namely reducing power assay, 2,2-diphenyl-1-picrylhydrazyl (DPPH) assay and the chelating effect on Fe2+. The oils exhibited good to moderate antioxidant activity in a dose-dependent manner. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.692915

Essential oil composition and antioxidant activity of leaves and flowers of Skimmia anquetilia N.P. Taylor & Airy Shaw / Manjul Gondwal in The journal of essential oil research, Vol. 24 N° 1 (Fevrier 2012) 

Public ISBD [article]  in The journal of essential oil research > Vol. 24 N° 1 (Fevrier 2012) . - pp. 83-90 Titre : Essential oil composition and antioxidant activity of leaves and flowers of Skimmia anquetilia N.P. Taylor & Airy Shaw Type de document : texte imprimé Auteurs : Manjul Gondwal, Auteur ; Om Prakash, Auteur ; Anil K. Pant, Auteur Année de publication : 2012 Article en page(s) : pp. 83-90 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Skimmia  anquetilia  Rutaceae  Essential  oils  Antioxidant  activity  Phenolics Résumé : The essential oils of the leaves and flowers of Skimmia anquetilia N.P.Taylor & Airy Shaw (family: Rutaceae) were examined by the combination of gas chromatography (GC) and gas chromatography/mass spectrometry (GC/MS). The analysis of the oils from leaves and flowers revealed the presence of β-phellandrene (1.8%, 18.4%), geijerene (2.0%, 15.0%), germacrene B (11.6%, 2.0%), linalyl acetate (7.3%, 11.2%), linalool (9.5%, 9.4%), α-terpineol (5.6%, 4.4%) and pregeijerene (0.2%, 5.6%) as major constituents. The antioxidant activity of the leaf and flower oils was studied and compared by different methods including their effect on reducing power, chelating properties of Fe+2 and in vitro 2’2’-diphenylpicrylhadrazyl (DPPH) radical-scavenging activity. The total phenolic contents in the water extracts of leaf and flower were estimated and compared. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.646034 [article] Essential oil composition and antioxidant activity of leaves and flowers of Skimmia anquetilia N.P. Taylor & Airy Shaw [texte imprimé] / Manjul Gondwal, Auteur ; Om Prakash, Auteur ; Anil K. Pant, Auteur . - 2012 . - pp. 83-90. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 24 N° 1 (Fevrier 2012) . - pp. 83-90 Mots-clés : Skimmia  anquetilia  Rutaceae  Essential  oils  Antioxidant  activity  Phenolics Résumé : The essential oils of the leaves and flowers of Skimmia anquetilia N.P.Taylor & Airy Shaw (family: Rutaceae) were examined by the combination of gas chromatography (GC) and gas chromatography/mass spectrometry (GC/MS). The analysis of the oils from leaves and flowers revealed the presence of β-phellandrene (1.8%, 18.4%), geijerene (2.0%, 15.0%), germacrene B (11.6%, 2.0%), linalyl acetate (7.3%, 11.2%), linalool (9.5%, 9.4%), α-terpineol (5.6%, 4.4%) and pregeijerene (0.2%, 5.6%) as major constituents. The antioxidant activity of the leaf and flower oils was studied and compared by different methods including their effect on reducing power, chelating properties of Fe+2 and in vitro 2’2’-diphenylpicrylhadrazyl (DPPH) radical-scavenging activity. The total phenolic contents in the water extracts of leaf and flower were estimated and compared. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.646034

Linalool-rich essential oil from the rhizomes of zingiber roseum rosc. / Om Prakash in The journal of essential oil research, Vol. 18 N° 6 (Novembre-Décembre 2006) 

Public ISBD [article]  in The journal of essential oil research > Vol. 18 N° 6 (Novembre-Décembre 2006) . - pp. 638-639 Titre : Linalool-rich essential oil from the rhizomes of zingiber roseum rosc. Type de document : texte imprimé Auteurs : Om Prakash, Auteur ; A.K. Pant, Auteur ; C. S. Mathela, Auteur Année de publication : 2006 Article en page(s) : pp. 638-639 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Ziginber  roseum  Zingiberaceae  Essential  oil  composition  Linalool  Limonene Résumé : The combination of GC and GC/MS analysis of the essential oil obtained from the rhizome of Zingiber roseum Rosc. revealed the presence of over 44 compounds of which 36 compounds have been identifed comprising 94.9% of the oil. The oil was found to be rich in linalool (53.3%) with lesser amounts of limonene (14.0%), β-pinene (9.3%) and α-pinene (4.4%) being among the other constituents. The marker components of the family Zingiberaceae such as borneol (0.9%) and β-eudesmol (1.4%) were found to be present in relatively low concentrations in the oil. This is the frst report on composition of the oil from rhizome of Z. roseum. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2006.9699190#.UXKZFEqC5mM [article] Linalool-rich essential oil from the rhizomes of zingiber roseum rosc. [texte imprimé] / Om Prakash, Auteur ; A.K. Pant, Auteur ; C. S. Mathela, Auteur . - 2006 . - pp. 638-639. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 18 N° 6 (Novembre-Décembre 2006) . - pp. 638-639 Mots-clés : Ziginber  roseum  Zingiberaceae  Essential  oil  composition  Linalool  Limonene Résumé : The combination of GC and GC/MS analysis of the essential oil obtained from the rhizome of Zingiber roseum Rosc. revealed the presence of over 44 compounds of which 36 compounds have been identifed comprising 94.9% of the oil. The oil was found to be rich in linalool (53.3%) with lesser amounts of limonene (14.0%), β-pinene (9.3%) and α-pinene (4.4%) being among the other constituents. The marker components of the family Zingiberaceae such as borneol (0.9%) and β-eudesmol (1.4%) were found to be present in relatively low concentrations in the oil. This is the frst report on composition of the oil from rhizome of Z. roseum. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2006.9699190#.UXKZFEqC5mM

Volatile constituents of rhizomes and leaves of alpinia allughas roscoe / Om Prakash in The journal of essential oil research, Vol. 19 N°5 (Septembre/Octobre 2007) 

Public ISBD [article]  in The journal of essential oil research > Vol. 19 N°5 (Septembre/Octobre 2007) . - pp. 407-409 Titre : Volatile constituents of rhizomes and leaves of alpinia allughas roscoe Type de document : texte imprimé Auteurs : Om Prakash, Auteur ; Sushil Joshi, Auteur ; A.K. Pant, Auteur Année de publication : 2007 Article en page(s) : pp. 407-409 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Alpinia  allughas  Zingiberaceae  Essential  oil  composition  1,8-cineole  β-pinene Résumé : The GC and GC/MS analyses of the oils from the rhizome and leaves of Alpinia allughas led to identification of 22 and 42 constituents, respectively. The major constituents of the rhizome oil were β-pinene (55.3%) and α-pinene (9.7%) whereas in the leaf oil β-pinene (25.5%), 1,8-cineole(23.3%) and α-humulene (9.7%) were major. The unique feature is the dominant presence of two pinenes (rhizome (65%) and leaf (30.9%)) unlike other species of Alpinia. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2007.9699937#.UW5uUEqC5mM [article] Volatile constituents of rhizomes and leaves of alpinia allughas roscoe [texte imprimé] / Om Prakash, Auteur ; Sushil Joshi, Auteur ; A.K. Pant, Auteur . - 2007 . - pp. 407-409. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 19 N°5 (Septembre/Octobre 2007) . - pp. 407-409 Mots-clés : Alpinia  allughas  Zingiberaceae  Essential  oil  composition  1,8-cineole  β-pinene Résumé : The GC and GC/MS analyses of the oils from the rhizome and leaves of Alpinia allughas led to identification of 22 and 42 constituents, respectively. The major constituents of the rhizome oil were β-pinene (55.3%) and α-pinene (9.7%) whereas in the leaf oil β-pinene (25.5%), 1,8-cineole(23.3%) and α-humulene (9.7%) were major. The unique feature is the dominant presence of two pinenes (rhizome (65%) and leaf (30.9%)) unlike other species of Alpinia. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2007.9699937#.UW5uUEqC5mM