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Ajouter le résultat dans votre panierChemotypic variation in Indian lantana camara essential oil / Laxminarain Misra in The journal of essential oil research, Vol. 23 N° 3 (Mai/Juin 2011)
in The journal of essential oil research > Vol. 23 N° 3 (Mai/Juin 2011) . - pp. 1-5
Titre : Chemotypic variation in Indian lantana camara essential oil Type de document : texte imprimé Auteurs : Laxminarain Misra, Auteur ; Anil K. Saikia, Auteur Année de publication : 2011 Article en page(s) : pp. 1-5 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Lantana camara L. var. aculeata Verbenaceae Cis-β-davanone β-caryophyllene Bicyclogermacrene Index. décimale : 646 Résumé : The essential oil from the leaves of Lantana camara from Dibrugarh, in the northeastern Indian state of Assam, after spectroscopic analysis, has shown that cis-davanone, an uncommon sesquiterpenoid, is its major constituent, while the essential oil from flowers contained β-caryophyllene and bicyclo-germacrene as the major components. Presence of davanone in the essential oil from leaves of this region clearly showed that L. camara exists in the form of another chemotype in the northeastern part of India as compared to north and north central India, wherein β-caryophyllene is the major component. The oil has been extracted from three different locations of the northeastern region successively for four years to confirm the stability of the chemotype. DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2011.9700449 [article] Chemotypic variation in Indian lantana camara essential oil [texte imprimé] / Laxminarain Misra, Auteur ; Anil K. Saikia, Auteur . - 2011 . - pp. 1-5.
Génie Chimique
Langues : Anglais (eng)
in The journal of essential oil research > Vol. 23 N° 3 (Mai/Juin 2011) . - pp. 1-5
Mots-clés : Lantana camara L. var. aculeata Verbenaceae Cis-β-davanone β-caryophyllene Bicyclogermacrene Index. décimale : 646 Résumé : The essential oil from the leaves of Lantana camara from Dibrugarh, in the northeastern Indian state of Assam, after spectroscopic analysis, has shown that cis-davanone, an uncommon sesquiterpenoid, is its major constituent, while the essential oil from flowers contained β-caryophyllene and bicyclo-germacrene as the major components. Presence of davanone in the essential oil from leaves of this region clearly showed that L. camara exists in the form of another chemotype in the northeastern part of India as compared to north and north central India, wherein β-caryophyllene is the major component. The oil has been extracted from three different locations of the northeastern region successively for four years to confirm the stability of the chemotype. DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2011.9700449
in The journal of essential oil research > Vol. 23 N° 3 (Mai/Juin 2011) . - pp. 6-11
Titre : Chemical polymorphism of essential oils from five populations of thymus daenensis Celak. Subsp. daenensis endemic to Iran Type de document : texte imprimé Auteurs : Alireza Rustaiee, Auteur ; Fatemeh Sefidkon, Auteur ; Seyed Mohammad Fakhr Tabatabaei, Auteur Année de publication : 2011 Article en page(s) : pp. 6-11 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Thymus deanensis Celak. subsp. daenensis Essential oil Chemical polymorphism Thymol Carvacrol Index. décimale : 646 Résumé : Chemical composition of essential oils from five populations of Thymus daenensis Celak. subsp. daenensis, an important medicinal plant endemic to Iran, was investigated by means of GC and GC/MS. All oils were characterized by a high content of monoterpenoid compounds, especially oxygenated ones (75.4–83.0%), and a small amount of sesquiterpenes (1.7–4.0%). Thymol was identified as the major component of all essential oils. Cluster analysis based on the percentage composition of essential oils and data obtained from the RAPD molecular markers experiment led to clearly discrimination of Th. deanensis populations and they were placed into two main clusters; members of the first cluster (Arak and Malayer) contained thymol as the main oil component (77.7–78.1%), whereas the populations included in the second cluster (Aleshtar, Hamedan and Dena) were rich in carvacrol (19.1–29.4%) as well. DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2011.9700450 [article] Chemical polymorphism of essential oils from five populations of thymus daenensis Celak. Subsp. daenensis endemic to Iran [texte imprimé] / Alireza Rustaiee, Auteur ; Fatemeh Sefidkon, Auteur ; Seyed Mohammad Fakhr Tabatabaei, Auteur . - 2011 . - pp. 6-11.
Génie Chimique
Langues : Anglais (eng)
in The journal of essential oil research > Vol. 23 N° 3 (Mai/Juin 2011) . - pp. 6-11
Mots-clés : Thymus deanensis Celak. subsp. daenensis Essential oil Chemical polymorphism Thymol Carvacrol Index. décimale : 646 Résumé : Chemical composition of essential oils from five populations of Thymus daenensis Celak. subsp. daenensis, an important medicinal plant endemic to Iran, was investigated by means of GC and GC/MS. All oils were characterized by a high content of monoterpenoid compounds, especially oxygenated ones (75.4–83.0%), and a small amount of sesquiterpenes (1.7–4.0%). Thymol was identified as the major component of all essential oils. Cluster analysis based on the percentage composition of essential oils and data obtained from the RAPD molecular markers experiment led to clearly discrimination of Th. deanensis populations and they were placed into two main clusters; members of the first cluster (Arak and Malayer) contained thymol as the main oil component (77.7–78.1%), whereas the populations included in the second cluster (Aleshtar, Hamedan and Dena) were rich in carvacrol (19.1–29.4%) as well. DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2011.9700450
in The journal of essential oil research > Vol. 23 N° 3 (Mai/Juin 2011) . - pp. 12-19
Titre : Chemical examination and evaluation of antioxidant and antimicrobial activities of essential oil from gymnema sylvestre R. Br. leaves Type de document : texte imprimé Auteurs : Dattatraya G. Naik, Auteur ; Chitra N. Dandge, Auteur ; Shobha V. Rupanar, Auteur Année de publication : 2011 Article en page(s) : pp. 12-19 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Antimicrobial activity Antioxidant assays Essential oil composition 4-ethyl guaiacol Eugenol Gymnema sylvestre R. Br. Hydroquinone Palmitic acid Total phenolic content 4-vinyl guaiacol Index. décimale : 646 Résumé : The present study reports chemical examination and in vitro antioxidant and antimicrobial activities of essential oil isolated from leaves of a well known antidiabetic plant, Gymnema sylvestre R. Br. Essential oil was isolated from leaves by hydrodistillation using a Clevenger apparatus. The essential oil was found to contain 40 volatile compounds by GC/MS analysis. Hitherto unknown major components of essential oil identified by GC/MS analysis were found to be palmitic acid (17.8%), hydroquinone (13.9%), phytol (6.9%), pentadecanoic acid (6.8%), 4-vinyl guaiacol (4.5%), and eugenol (4.0%). Essential oil exhibited strong 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity (IC50 28 μg/mL). Dose dependent antioxidant activity was shown by essential oil in β-carotene bleaching and 2,2-azinobis-(3-ethyl benzothiazoline-6-sulphonic acid) diammonium salt (ABTS) radical scavenging assays. The total phenolic content of essential oil was found to be 34 mg GAE/g fresh leaves. The essential oil inhibited the growth of Pseudomonas aeruginosa, Pseudomonas asplenii, Bacillus subtilis, Proteus mirabilis, Escherichia coli and fungus Candida albicans with minimal inhibitory concentration (MIC) varying between 22 mg/mL and 28 mg/mL. DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2011.9700451 [article] Chemical examination and evaluation of antioxidant and antimicrobial activities of essential oil from gymnema sylvestre R. Br. leaves [texte imprimé] / Dattatraya G. Naik, Auteur ; Chitra N. Dandge, Auteur ; Shobha V. Rupanar, Auteur . - 2011 . - pp. 12-19.
Génie Chimique
Langues : Anglais (eng)
in The journal of essential oil research > Vol. 23 N° 3 (Mai/Juin 2011) . - pp. 12-19
Mots-clés : Antimicrobial activity Antioxidant assays Essential oil composition 4-ethyl guaiacol Eugenol Gymnema sylvestre R. Br. Hydroquinone Palmitic acid Total phenolic content 4-vinyl guaiacol Index. décimale : 646 Résumé : The present study reports chemical examination and in vitro antioxidant and antimicrobial activities of essential oil isolated from leaves of a well known antidiabetic plant, Gymnema sylvestre R. Br. Essential oil was isolated from leaves by hydrodistillation using a Clevenger apparatus. The essential oil was found to contain 40 volatile compounds by GC/MS analysis. Hitherto unknown major components of essential oil identified by GC/MS analysis were found to be palmitic acid (17.8%), hydroquinone (13.9%), phytol (6.9%), pentadecanoic acid (6.8%), 4-vinyl guaiacol (4.5%), and eugenol (4.0%). Essential oil exhibited strong 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity (IC50 28 μg/mL). Dose dependent antioxidant activity was shown by essential oil in β-carotene bleaching and 2,2-azinobis-(3-ethyl benzothiazoline-6-sulphonic acid) diammonium salt (ABTS) radical scavenging assays. The total phenolic content of essential oil was found to be 34 mg GAE/g fresh leaves. The essential oil inhibited the growth of Pseudomonas aeruginosa, Pseudomonas asplenii, Bacillus subtilis, Proteus mirabilis, Escherichia coli and fungus Candida albicans with minimal inhibitory concentration (MIC) varying between 22 mg/mL and 28 mg/mL. DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2011.9700451
in The journal of essential oil research > Vol. 23 N° 3 (Mai/Juin 2011) . - pp. 20-25
Titre : Essential oil composition of hypericum perforatum L. from cultivated source Type de document : texte imprimé Auteurs : R. S. Chauhan, Auteur ; R. K. Vashistha, Auteur ; M. C. Nautiyal, Auteur Année de publication : 2011 Article en page(s) : pp. 20-25 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Antidepressant β-caryophyllene Chemotypes Cultivation Essential oil composition Germacrene D H. perforatum Index. décimale : 646 Résumé : Hypericum perforatum L. (Hypericaceae) is the most commercially important species within the genus Hypericum. A wild strain was cultivated at Pothiwasa (2200 m), Uttarakhand, India. Aerial parts were collected (the upper two-thirds) during the flowering phenophase and used to extract the essential oil by means of a Clevenger-type apparatus. Forty compounds constituting 91.0% of the total volatile oil were identified using GC-FID and GC/MS analysis. The major constituent of the essential oil was germacrene D (22.1%), whereas other important constituents were found to be β-caryophyllene (11.3%), α-pinene (8.6%), α-cadinol (4.4%), β-pinene (3.8%), 2-methyl-octane (3.7%), terpinen-4-ol (3.3%), caryophyllene oxide (3.3%), α-muurolol (2.9%) and spathulenol (2.8%). The chemical composition of the oil varied qualitatively and quantitatively as compared to previous investigations. The peculiarity of the oil composition from the sample investigated in this paper may be attributed to environmental factors, such as soil nutrient status and growth environment, as well as to the genetic features of the cultivated strain. DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2011.9700452 [article] Essential oil composition of hypericum perforatum L. from cultivated source [texte imprimé] / R. S. Chauhan, Auteur ; R. K. Vashistha, Auteur ; M. C. Nautiyal, Auteur . - 2011 . - pp. 20-25.
Génie Chimique
Langues : Anglais (eng)
in The journal of essential oil research > Vol. 23 N° 3 (Mai/Juin 2011) . - pp. 20-25
Mots-clés : Antidepressant β-caryophyllene Chemotypes Cultivation Essential oil composition Germacrene D H. perforatum Index. décimale : 646 Résumé : Hypericum perforatum L. (Hypericaceae) is the most commercially important species within the genus Hypericum. A wild strain was cultivated at Pothiwasa (2200 m), Uttarakhand, India. Aerial parts were collected (the upper two-thirds) during the flowering phenophase and used to extract the essential oil by means of a Clevenger-type apparatus. Forty compounds constituting 91.0% of the total volatile oil were identified using GC-FID and GC/MS analysis. The major constituent of the essential oil was germacrene D (22.1%), whereas other important constituents were found to be β-caryophyllene (11.3%), α-pinene (8.6%), α-cadinol (4.4%), β-pinene (3.8%), 2-methyl-octane (3.7%), terpinen-4-ol (3.3%), caryophyllene oxide (3.3%), α-muurolol (2.9%) and spathulenol (2.8%). The chemical composition of the oil varied qualitatively and quantitatively as compared to previous investigations. The peculiarity of the oil composition from the sample investigated in this paper may be attributed to environmental factors, such as soil nutrient status and growth environment, as well as to the genetic features of the cultivated strain. DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2011.9700452
in The journal of essential oil research > Vol. 23 N° 3 (Mai/Juin 2011) . - pp. 26-31
Titre : Chemical composition and bioactivity of acantholippia seriphioides essential oils from Patagonia Type de document : texte imprimé Auteurs : Marcia Mazzuca, Auteur ; Javier Berezosky, Auteur ; Roberto C. Cerdá, Auteur Année de publication : 2011 Article en page(s) : pp. 26-31 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Acantholippia seriphioides Verbenaceae Essential oils GC-FID/MS Brine shrimp Allelopathic interaction Index. décimale : 646 Résumé : The aerial parts of Acantholippia seriphioides (A. Gray) Mold. were collected from three sites in the neighborhood of Comodoro Rivadavia, in Patagonia (Astra, Saavedra and Rada Tilly), and their essential oils were analyzed by GC-FID/MS. Results obtained by the analysis indicated chemovariability in the oils from these sites when matched with other sites. Monoterpene hydrocarbons (92.6–95.1%) were the main group of constituents in all populations, mainly thymol (33.7–38.5%) p-cymene (26.5–35.3%) and γ-terpinene (8.3–12.7%). Essential oils were submitted to biological assays in order to assess their general toxic activity on Artemia salina, and the inhibition effects in the germination and seedling growth of Lactuca sativa. Saavedra sample, associated with greater limonene, carvone, carvacrol and p-cymene contents, was the most active to the A. salina test (LD50 = 23,08 μg/mL−1). Astra sample, associated to a greater relative proportion of γ-terpinene, thymol methyl ether and neral, was the most active to the germination and seedling growth test (IC50=1.86 μg/mL−1). Saavedra sample also showed high activity (IC50= 37.53 μg/mL−1). The bioactivities were not proportional to the content of present active monoterpenes. DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2011.9700453 [article] Chemical composition and bioactivity of acantholippia seriphioides essential oils from Patagonia [texte imprimé] / Marcia Mazzuca, Auteur ; Javier Berezosky, Auteur ; Roberto C. Cerdá, Auteur . - 2011 . - pp. 26-31.
Génie Chimique
Langues : Anglais (eng)
in The journal of essential oil research > Vol. 23 N° 3 (Mai/Juin 2011) . - pp. 26-31
Mots-clés : Acantholippia seriphioides Verbenaceae Essential oils GC-FID/MS Brine shrimp Allelopathic interaction Index. décimale : 646 Résumé : The aerial parts of Acantholippia seriphioides (A. Gray) Mold. were collected from three sites in the neighborhood of Comodoro Rivadavia, in Patagonia (Astra, Saavedra and Rada Tilly), and their essential oils were analyzed by GC-FID/MS. Results obtained by the analysis indicated chemovariability in the oils from these sites when matched with other sites. Monoterpene hydrocarbons (92.6–95.1%) were the main group of constituents in all populations, mainly thymol (33.7–38.5%) p-cymene (26.5–35.3%) and γ-terpinene (8.3–12.7%). Essential oils were submitted to biological assays in order to assess their general toxic activity on Artemia salina, and the inhibition effects in the germination and seedling growth of Lactuca sativa. Saavedra sample, associated with greater limonene, carvone, carvacrol and p-cymene contents, was the most active to the A. salina test (LD50 = 23,08 μg/mL−1). Astra sample, associated to a greater relative proportion of γ-terpinene, thymol methyl ether and neral, was the most active to the germination and seedling growth test (IC50=1.86 μg/mL−1). Saavedra sample also showed high activity (IC50= 37.53 μg/mL−1). The bioactivities were not proportional to the content of present active monoterpenes. DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2011.9700453
in The journal of essential oil research > Vol. 23 N° 3 (Mai/Juin 2011) . - pp. 32-38
Titre : Composition of oregano essential oil (origanum vulgare) as affected by the use of winery-distillery composts Type de document : texte imprimé Auteurs : Adam Bolechowski, Auteur ; Raúl Moral, Auteur ; María A. Bustamante, Auteur Année de publication : 2011 Article en page(s) : pp. 32-38 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Composting Essential oil composition Terpinen-4-ol Carvacrol Thymol γ-terpinene Growing media Origanum vulgare Index. décimale : 646 Résumé : Three different winery-distillery composts were used as binary components with peat-perlite mix (PP) in growing media for oregano cultivation. These composts were prepared using exhausted grape marc as principal component combined with several co-composting wastes, such as citrus juice waste (C1), tomato soup waste (C2) and cattle manure (C3). Three treatments were established for each compost type, with increasing compost quantities to traditional PP mix (0%, 25% and 50%). Physical and physico-chemical analyses of the different mixtures of winery-distillery composts and PP were carried out. The volatile compounds of oregano samples were extracted by steam-hydrodistillation and analyzed by GC/MS. Twenty-seven compounds were tentatively identified, with terpinen-4-ol, carvacrol, thymol and γ-terpinene being the major compounds. The total yield of volatile compounds (mg plant−1) was always increased by the use of the compost materials as ingredients of the growing media. However, the total volatile concentration of control samples, 16.3 g kg−1, was only increased by the compost-mixtures containing 50% of C1 and 25% of C2 or C3. The final recommendation is to use grape marc together with citrus juice or tomato soup wastes at ratios of 1:1 as growing media for the cultivation of aromatic herbs, including oregano. DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2011.9700454 [article] Composition of oregano essential oil (origanum vulgare) as affected by the use of winery-distillery composts [texte imprimé] / Adam Bolechowski, Auteur ; Raúl Moral, Auteur ; María A. Bustamante, Auteur . - 2011 . - pp. 32-38.
Génie Chimique
Langues : Anglais (eng)
in The journal of essential oil research > Vol. 23 N° 3 (Mai/Juin 2011) . - pp. 32-38
Mots-clés : Composting Essential oil composition Terpinen-4-ol Carvacrol Thymol γ-terpinene Growing media Origanum vulgare Index. décimale : 646 Résumé : Three different winery-distillery composts were used as binary components with peat-perlite mix (PP) in growing media for oregano cultivation. These composts were prepared using exhausted grape marc as principal component combined with several co-composting wastes, such as citrus juice waste (C1), tomato soup waste (C2) and cattle manure (C3). Three treatments were established for each compost type, with increasing compost quantities to traditional PP mix (0%, 25% and 50%). Physical and physico-chemical analyses of the different mixtures of winery-distillery composts and PP were carried out. The volatile compounds of oregano samples were extracted by steam-hydrodistillation and analyzed by GC/MS. Twenty-seven compounds were tentatively identified, with terpinen-4-ol, carvacrol, thymol and γ-terpinene being the major compounds. The total yield of volatile compounds (mg plant−1) was always increased by the use of the compost materials as ingredients of the growing media. However, the total volatile concentration of control samples, 16.3 g kg−1, was only increased by the compost-mixtures containing 50% of C1 and 25% of C2 or C3. The final recommendation is to use grape marc together with citrus juice or tomato soup wastes at ratios of 1:1 as growing media for the cultivation of aromatic herbs, including oregano. DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2011.9700454
in The journal of essential oil research > Vol. 23 N° 3 (Mai/Juin 2011) . - pp. 39-41
Titre : Volatile constituents of the roots of cyperus compressus Linn. Type de document : texte imprimé Auteurs : K. B. Rameshkumar, Auteur ; N. Sudheesh, Auteur ; V. George, Auteur Année de publication : 2011 Article en page(s) : pp. 39-41 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Cyperus compressus Cyperaceae Essential oil composition Caryophyllene oxide Cyperene Index. décimale : 646 Résumé : The essential oil from the roots of Cyperus compressus Linn. (Cyperaceae) collected from south India was analyzed by GC and GC/MS. Twenty-two compounds, representing 90.5% of the oil were identified. The oil has been characterized by the predominance of sesquiterpenoids (89.9%), with caryophyllene oxide (34.0%) and cyperene (25.6%) being the major constituents. DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2011.9700455 [article] Volatile constituents of the roots of cyperus compressus Linn. [texte imprimé] / K. B. Rameshkumar, Auteur ; N. Sudheesh, Auteur ; V. George, Auteur . - 2011 . - pp. 39-41.
Génie Chimique
Langues : Anglais (eng)
in The journal of essential oil research > Vol. 23 N° 3 (Mai/Juin 2011) . - pp. 39-41
Mots-clés : Cyperus compressus Cyperaceae Essential oil composition Caryophyllene oxide Cyperene Index. décimale : 646 Résumé : The essential oil from the roots of Cyperus compressus Linn. (Cyperaceae) collected from south India was analyzed by GC and GC/MS. Twenty-two compounds, representing 90.5% of the oil were identified. The oil has been characterized by the predominance of sesquiterpenoids (89.9%), with caryophyllene oxide (34.0%) and cyperene (25.6%) being the major constituents. DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2011.9700455
in The journal of essential oil research > Vol. 23 N° 3 (Mai/Juin 2011) . - pp. 42-46
Titre : Composition and antimicrobial activity of the essential oil of achillea odorata L. Subsp. pectinata (Lamk) Var. microphylla (Willd.) Willk. from northwestern Algeria Type de document : texte imprimé Auteurs : Chahrazed Bekhech, Auteur ; Fewzia Atik Bekkara, Auteur ; Joseph Casanova, Auteur Année de publication : 2011 Article en page(s) : pp. 42-46 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Achillea odorata L. subsp. pectinata (Lamk) var. microphylla (Willd.) Willk Lamiaceae Essential oil composition Camphor 1,8-cineole Antimicrobial activity Index. décimale : 646 Résumé : The chemical composition of the essential oil isolated from aerial parts of Achillea odorata L. subsp. pectinata (Lamk) var. microphylla (Willd.) Willk. from Algeria, was investigated by GC (retention indices) and 13C-NMR. During the full flowering period, the major components were camphor (22.9–26.3%), 1,8-cineole (15.7–17.8%) and α-pinene (11.3–12.5%). At the end of flowering, thymol (2.7–4.5%) and iso-thymol (1.3–2.7%) were also present at appreciable contents. The antimicrobial activities of the essential oil were tested against nine microorganisms (four bacteria and five fungi). The essential oil exhibited moderate inhibitory effects on A. alternaria, A. fumigatus and Cl. herbarum, with a minimum inhibitory concentration of 4 μL/mL and 5 μL/mL. DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2011.9700456 [article] Composition and antimicrobial activity of the essential oil of achillea odorata L. Subsp. pectinata (Lamk) Var. microphylla (Willd.) Willk. from northwestern Algeria [texte imprimé] / Chahrazed Bekhech, Auteur ; Fewzia Atik Bekkara, Auteur ; Joseph Casanova, Auteur . - 2011 . - pp. 42-46.
Génie Chimique
Langues : Anglais (eng)
in The journal of essential oil research > Vol. 23 N° 3 (Mai/Juin 2011) . - pp. 42-46
Mots-clés : Achillea odorata L. subsp. pectinata (Lamk) var. microphylla (Willd.) Willk Lamiaceae Essential oil composition Camphor 1,8-cineole Antimicrobial activity Index. décimale : 646 Résumé : The chemical composition of the essential oil isolated from aerial parts of Achillea odorata L. subsp. pectinata (Lamk) var. microphylla (Willd.) Willk. from Algeria, was investigated by GC (retention indices) and 13C-NMR. During the full flowering period, the major components were camphor (22.9–26.3%), 1,8-cineole (15.7–17.8%) and α-pinene (11.3–12.5%). At the end of flowering, thymol (2.7–4.5%) and iso-thymol (1.3–2.7%) were also present at appreciable contents. The antimicrobial activities of the essential oil were tested against nine microorganisms (four bacteria and five fungi). The essential oil exhibited moderate inhibitory effects on A. alternaria, A. fumigatus and Cl. herbarum, with a minimum inhibitory concentration of 4 μL/mL and 5 μL/mL. DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2011.9700456
in The journal of essential oil research > Vol. 23 N° 3 (Mai/Juin 2011) . - pp. 47-54
Titre : Fungicidal and bactericidal properties of bisabolol and dragosantol Type de document : texte imprimé Auteurs : Anthony J. De Lucca, Auteur ; Alexander Pauli, Auteur ; Heinz Schilcher, Auteur Année de publication : 2011 Article en page(s) : pp. 47-54 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Arnica longifolia Aster hesperius Chrysothamnus nauseosus Essential oils α-bisabolol Dragosantol Antimicrobial Index. décimale : 646 Résumé : α-Bisabolol, a natural plant sesquiterpene alcohol, and dragosantol, a racemic mixture of synthetic bisabolol, were studied for their fungicidal properties separately against the nongerminated and germinating conidia of several species of Aspergillus and Fusarium which represent problems in agriculture and medicine. Bactericidal assays against Pseudomonas aeruginosa and Staphylococcus aureus were also performed. Compared to the controls, both compounds displayed statistically significant (p < 0.001) lethality for the tested microorganisms. α-Bisabolol and dragosantol produced nearly 98% viability loss against the germinating conidia of A. flavus, A. fumigatus, A. niger, A. terreus, F. oxysporum, F. solani, and F. verticillioides (formerly F. moniliforme) at, or below, 10 μM. The viability of nongerminated F. oxysporum conidia was significantly reduced. Both compounds showed very rapid and significant reduction of P. aeruginosa viability at 7.5 μM. Staphylococcus aureus was more resistant to these compounds though significant viability loss occurred after 2 h incubation at 12.5 μM. Minimum inhibition concentration studies (NCCLS Method-38A) showed that bisabolol inhibited the growth of clinical isolates of the dermatophytic pathogens Trichophyton tonsurans (2–8 μg/mL), T. mentogrophytes (2–4 μg/mL), T. rubrum (0–1 μg/mL) and Microsporum canis (0.5–2.0 μg/mL). Results showed α-bisabolol and dragosantol have potent fungicidal and bactericidal properties against the tested strains. Because both compounds are safe for use in cosmetics, the data presented here suggest potential utility as antimicrobials in cosmetics, food and as a topical antifungal treatment. DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2011.9700457 [article] Fungicidal and bactericidal properties of bisabolol and dragosantol [texte imprimé] / Anthony J. De Lucca, Auteur ; Alexander Pauli, Auteur ; Heinz Schilcher, Auteur . - 2011 . - pp. 47-54.
Génie Chimique
Langues : Anglais (eng)
in The journal of essential oil research > Vol. 23 N° 3 (Mai/Juin 2011) . - pp. 47-54
Mots-clés : Arnica longifolia Aster hesperius Chrysothamnus nauseosus Essential oils α-bisabolol Dragosantol Antimicrobial Index. décimale : 646 Résumé : α-Bisabolol, a natural plant sesquiterpene alcohol, and dragosantol, a racemic mixture of synthetic bisabolol, were studied for their fungicidal properties separately against the nongerminated and germinating conidia of several species of Aspergillus and Fusarium which represent problems in agriculture and medicine. Bactericidal assays against Pseudomonas aeruginosa and Staphylococcus aureus were also performed. Compared to the controls, both compounds displayed statistically significant (p < 0.001) lethality for the tested microorganisms. α-Bisabolol and dragosantol produced nearly 98% viability loss against the germinating conidia of A. flavus, A. fumigatus, A. niger, A. terreus, F. oxysporum, F. solani, and F. verticillioides (formerly F. moniliforme) at, or below, 10 μM. The viability of nongerminated F. oxysporum conidia was significantly reduced. Both compounds showed very rapid and significant reduction of P. aeruginosa viability at 7.5 μM. Staphylococcus aureus was more resistant to these compounds though significant viability loss occurred after 2 h incubation at 12.5 μM. Minimum inhibition concentration studies (NCCLS Method-38A) showed that bisabolol inhibited the growth of clinical isolates of the dermatophytic pathogens Trichophyton tonsurans (2–8 μg/mL), T. mentogrophytes (2–4 μg/mL), T. rubrum (0–1 μg/mL) and Microsporum canis (0.5–2.0 μg/mL). Results showed α-bisabolol and dragosantol have potent fungicidal and bactericidal properties against the tested strains. Because both compounds are safe for use in cosmetics, the data presented here suggest potential utility as antimicrobials in cosmetics, food and as a topical antifungal treatment. DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2011.9700457
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
in The journal of essential oil research > Vol. 23 N° 3 (Mai/Juin 2011) . - pp. 58-63
Titre : Characteristic odor components of essential oil from dried fruiting bodies of golden oyster mushroom (pleurotus citrinopileatus) Type de document : texte imprimé Auteurs : Mitsuo Miyazawa, Auteur ; Yoshiyuki Dejima, Auteur ; Toshiyuki Takahashi, Auteur Année de publication : 2011 Article en page(s) : pp. 58-63 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Pleurotus citrinopileatus Elsholtzia ketone Curcuphenol 3-methylthio propanal 2,6-dimethyl pyrazine Index. décimale : 646 Résumé : The components of the essential oil of Golden oyster mushroom (Pleurotus citrinopileatus) were analyzed by capillary gas chromatography (GC) and gas chromatography-mass spectrometry (GC/MS). Fifty-nine components, representing 95.9% of the total oil were identified. The main components of the oil were fatty acids such as palmitic acid (23.3%), linoleic acid (31.3%) and pentadecylic acid (6.0%). Elsholtzia ketone and curcuphenol were identified in the oil of mushroom for the first time. The result of GC-O (gaschromatography olfactometry) and AEDA (Aroma Extract Dilution Analysis) showed that the sulfur and nitrogen-containing components, C8 ketone and C8 aldehyde are responsible for the aroma of P. citrinopileatus. DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2011.9700459 [article] Characteristic odor components of essential oil from dried fruiting bodies of golden oyster mushroom (pleurotus citrinopileatus) [texte imprimé] / Mitsuo Miyazawa, Auteur ; Yoshiyuki Dejima, Auteur ; Toshiyuki Takahashi, Auteur . - 2011 . - pp. 58-63.
Génie Chimique
Langues : Anglais (eng)
in The journal of essential oil research > Vol. 23 N° 3 (Mai/Juin 2011) . - pp. 58-63
Mots-clés : Pleurotus citrinopileatus Elsholtzia ketone Curcuphenol 3-methylthio propanal 2,6-dimethyl pyrazine Index. décimale : 646 Résumé : The components of the essential oil of Golden oyster mushroom (Pleurotus citrinopileatus) were analyzed by capillary gas chromatography (GC) and gas chromatography-mass spectrometry (GC/MS). Fifty-nine components, representing 95.9% of the total oil were identified. The main components of the oil were fatty acids such as palmitic acid (23.3%), linoleic acid (31.3%) and pentadecylic acid (6.0%). Elsholtzia ketone and curcuphenol were identified in the oil of mushroom for the first time. The result of GC-O (gaschromatography olfactometry) and AEDA (Aroma Extract Dilution Analysis) showed that the sulfur and nitrogen-containing components, C8 ketone and C8 aldehyde are responsible for the aroma of P. citrinopileatus. DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2011.9700459
in The journal of essential oil research > Vol. 23 N° 3 (Mai/Juin 2011) . - pp. 64-67
Titre : Floral scent composition in hedychium coronarium J. Koenig analyzed by SPME Type de document : texte imprimé Auteurs : Disnelys Báez, Auteur ; Jorge A. Pino, Auteur ; Diego Morales, Auteur Année de publication : 2011 Article en page(s) : pp. 64-67 Note générale : Génie chimique Langues : Anglais (eng) Mots-clés : Hedychium coronarium Zingiberaceae Floral scent HS-SPME GC/MS (E)-β-ocimene Linalool 1,8-cineole Index. décimale : 646 Résumé : The headspace volatile compounds of the flowers of ginger lily (Hedychium coronarium J. Koenig) were analyzed by solid phase microextraction coupled with capillary gas chromatography/mass spectrometry. A total of 39 compounds were identified, representing 98% of the entire amount. The volatile fraction was characterized by monoterpene hydrocarbons (34.9%), oxygenated monoterpenes (34.4%) and sesquiterpene hydrocarbons (13.2%). The major components were (E)-β-ocimene (28.7%), linalool (19.3%) and 1,8-cineole (14.5%), and they were found to make a major contribution to the typical scent of this flower. DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2011.9700460 [article] Floral scent composition in hedychium coronarium J. Koenig analyzed by SPME [texte imprimé] / Disnelys Báez, Auteur ; Jorge A. Pino, Auteur ; Diego Morales, Auteur . - 2011 . - pp. 64-67.
Génie chimique
Langues : Anglais (eng)
in The journal of essential oil research > Vol. 23 N° 3 (Mai/Juin 2011) . - pp. 64-67
Mots-clés : Hedychium coronarium Zingiberaceae Floral scent HS-SPME GC/MS (E)-β-ocimene Linalool 1,8-cineole Index. décimale : 646 Résumé : The headspace volatile compounds of the flowers of ginger lily (Hedychium coronarium J. Koenig) were analyzed by solid phase microextraction coupled with capillary gas chromatography/mass spectrometry. A total of 39 compounds were identified, representing 98% of the entire amount. The volatile fraction was characterized by monoterpene hydrocarbons (34.9%), oxygenated monoterpenes (34.4%) and sesquiterpene hydrocarbons (13.2%). The major components were (E)-β-ocimene (28.7%), linalool (19.3%) and 1,8-cineole (14.5%), and they were found to make a major contribution to the typical scent of this flower. DEWEY : 665 ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/abs/10.1080/10412905.2011.9700460
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