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Journal of essential oil research |
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Ajouter le résultat dans votre panierAlkanes and terpenes in wood and leaves of pinus jeffreyi and P. sabiniana / Robert P. Adams in The journal of essential oil research, Vol. 24 N° 5 (Octobre 2012)
in The journal of essential oil research > Vol. 24 N° 5 (Octobre 2012) . - pp. 435-440
Titre : Alkanes and terpenes in wood and leaves of pinus jeffreyi and P. sabiniana Type de document : texte imprimé Auteurs : Robert P. Adams, Auteur ; Jessica W. Wright, Auteur Année de publication : 2013 Article en page(s) : pp. 435-440 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Pinus jeffreyi Pinus sabiniana Wood oils Leaf oils Heptane Alkanes Terpenes Diterpene acids Résumé : The wood oils of Pinus jeffreyi and P. sabiniana contain considerable amounts of heptane (76.6%, 92%), on a monoterpene basis. However, when entire wood extractables is considered, the amounts drop considerably (3.4%, 36.8%) with the major portion of the wood oils being diterpene acids. The leaf oil of P. jeffreyi is dominated by α-pinene (20.9%) and, a diterpene, thunbergol (9.2%) with moderate amounts of β-pinene, δ-3-carene, limonene, β-phellandrene, (Z)-β-ocimene, (E)-caryophyllene, δ-cadinene and cembrene. The leaf oil of P. sabiniana is dominated by α-pinene (39.1%) with moderate amounts of β-pinene, myrcene, limonene, β-phellandrene, (Z)-β-ocimene, methyl chavicol, decanal and thunbergol. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.703512 [article] Alkanes and terpenes in wood and leaves of pinus jeffreyi and P. sabiniana [texte imprimé] / Robert P. Adams, Auteur ; Jessica W. Wright, Auteur . - 2013 . - pp. 435-440.
Génie Chimique
Langues : Anglais (eng)
in The journal of essential oil research > Vol. 24 N° 5 (Octobre 2012) . - pp. 435-440
Mots-clés : Pinus jeffreyi Pinus sabiniana Wood oils Leaf oils Heptane Alkanes Terpenes Diterpene acids Résumé : The wood oils of Pinus jeffreyi and P. sabiniana contain considerable amounts of heptane (76.6%, 92%), on a monoterpene basis. However, when entire wood extractables is considered, the amounts drop considerably (3.4%, 36.8%) with the major portion of the wood oils being diterpene acids. The leaf oil of P. jeffreyi is dominated by α-pinene (20.9%) and, a diterpene, thunbergol (9.2%) with moderate amounts of β-pinene, δ-3-carene, limonene, β-phellandrene, (Z)-β-ocimene, (E)-caryophyllene, δ-cadinene and cembrene. The leaf oil of P. sabiniana is dominated by α-pinene (39.1%) with moderate amounts of β-pinene, myrcene, limonene, β-phellandrene, (Z)-β-ocimene, methyl chavicol, decanal and thunbergol. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.703512
in The journal of essential oil research > Vol. 24 N° 5 (Octobre 2012) . - pp. 441-446
Titre : Characteristic odor components of essential oil from Caesalpinia decapetala Type de document : texte imprimé Auteurs : Mitsuo Miyazawa, Auteur ; Tsukasa Nagata, Auteur ; Hiroshi Nakahashi, Auteur Année de publication : 2013 Article en page(s) : pp. 441-446 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Caesalpinia decapetala Aroma extraction dilution analysis (AEDA) GC–MS GC–O Odor activity values (OAVs) Résumé : The components of the essential oil from Caesalpinia decapetala (Roth) Alston (jaketsuibara) were analyzed by gas chromatography–mass spectrometry (GC–MS). Seventy-two components, representing 99.6% of the total oil were identified by GC–MS. The main components of the oil were β-caryophyllene (17.2%), followed by β-myrcene (16.6%), (E)-β-ocimene (12.4%), limonene (10.4%), and caryophyllene oxide (9.6%). Monoterpenoids and sesquiterpenoids accounted for about 90% of the essential oil. With regard to odor components from essential oil of C. decapetala, it was revealed that β-myrcene and β-caryophyllene affect spicy-odor of the oil, while, (Z)-β-ocimene and (E)-β-ocimene contributed to the sweet odor through gas choromatography olfactometry (GC–O) and aroma extraction dilution analysis (AEDA). On the basis of flavor dilution (FD)-factors and odor activity values (OAVs), monoterpenoids and sesquiterpenoids influence the aroma of this plant and participated in the characteristic odor of C. decapetala. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.703475 [article] Characteristic odor components of essential oil from Caesalpinia decapetala [texte imprimé] / Mitsuo Miyazawa, Auteur ; Tsukasa Nagata, Auteur ; Hiroshi Nakahashi, Auteur . - 2013 . - pp. 441-446.
Génie Chimique
Langues : Anglais (eng)
in The journal of essential oil research > Vol. 24 N° 5 (Octobre 2012) . - pp. 441-446
Mots-clés : Caesalpinia decapetala Aroma extraction dilution analysis (AEDA) GC–MS GC–O Odor activity values (OAVs) Résumé : The components of the essential oil from Caesalpinia decapetala (Roth) Alston (jaketsuibara) were analyzed by gas chromatography–mass spectrometry (GC–MS). Seventy-two components, representing 99.6% of the total oil were identified by GC–MS. The main components of the oil were β-caryophyllene (17.2%), followed by β-myrcene (16.6%), (E)-β-ocimene (12.4%), limonene (10.4%), and caryophyllene oxide (9.6%). Monoterpenoids and sesquiterpenoids accounted for about 90% of the essential oil. With regard to odor components from essential oil of C. decapetala, it was revealed that β-myrcene and β-caryophyllene affect spicy-odor of the oil, while, (Z)-β-ocimene and (E)-β-ocimene contributed to the sweet odor through gas choromatography olfactometry (GC–O) and aroma extraction dilution analysis (AEDA). On the basis of flavor dilution (FD)-factors and odor activity values (OAVs), monoterpenoids and sesquiterpenoids influence the aroma of this plant and participated in the characteristic odor of C. decapetala. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.703475
in The journal of essential oil research > Vol. 24 N° 5 (Octobre 2012) . - pp. 447-452
Titre : Chemical composition of the essential oils of Lantana camara L. and Lantana montevidensis Briq. and their synergistic antibiotic effects on aminoglycosides Type de document : texte imprimé Auteurs : Erlânio O. Sousa, Auteur ; Francisco S. S. Barreto, Auteur ; Fabiola F. G. Rodrigues, Auteur Année de publication : 2013 Article en page(s) : pp. 447-452 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Essential oil composition Lantana Antibacterial activity Aminoglycosides Synergism Résumé : Recently, several plants have been evaluated not only for antimicrobial activity but also for resistance-modifying action. In this work, the chemical composition and antibacterial and antibiotic-modulatory activities of the essential oils from Lantana camara L. and Lantana montevidensis Briq. were analyzed. The essential oils extracted from the leaves by hydrodistillation and analyzed by gas chromatography (GC) and gas chromatography–mass spectrometry (GC–MS) were characterized by a high percentage of sesquiterpene hydrocarbons. Among the 34 constituents identified, bicyclogermacrene (19.4%), isocaryophyllene (16.7%), valencene (12.9%) and germacrene D (12.3%) were the main constituents of the oil from L. camara, while in the oil from L. montevidensis, β-caryophyllene (31.5%), germacrene D (27.5%) and bicyclogermacrene (13.9%) predominated. The essential oils were examined for antibiotic activities alone and in combination with aminoglycosides by a microdilution assay utilizing five bacterial strains. They exhibited significant antibacterial activities, mainly against Proteus vulgaris (MIC 64 μg/mL, L. camara; MIC 128 μg/mL, L. montevidensis). Both oils also showed a synergistic effect on the activity of aminoglycoside antibiotics. Thus, the essential oils of L. camara and L. montevidensis could be used as a source of plant-derived natural products with resistance-modifying antibacterial activity. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.703494 [article] Chemical composition of the essential oils of Lantana camara L. and Lantana montevidensis Briq. and their synergistic antibiotic effects on aminoglycosides [texte imprimé] / Erlânio O. Sousa, Auteur ; Francisco S. S. Barreto, Auteur ; Fabiola F. G. Rodrigues, Auteur . - 2013 . - pp. 447-452.
Génie Chimique
Langues : Anglais (eng)
in The journal of essential oil research > Vol. 24 N° 5 (Octobre 2012) . - pp. 447-452
Mots-clés : Essential oil composition Lantana Antibacterial activity Aminoglycosides Synergism Résumé : Recently, several plants have been evaluated not only for antimicrobial activity but also for resistance-modifying action. In this work, the chemical composition and antibacterial and antibiotic-modulatory activities of the essential oils from Lantana camara L. and Lantana montevidensis Briq. were analyzed. The essential oils extracted from the leaves by hydrodistillation and analyzed by gas chromatography (GC) and gas chromatography–mass spectrometry (GC–MS) were characterized by a high percentage of sesquiterpene hydrocarbons. Among the 34 constituents identified, bicyclogermacrene (19.4%), isocaryophyllene (16.7%), valencene (12.9%) and germacrene D (12.3%) were the main constituents of the oil from L. camara, while in the oil from L. montevidensis, β-caryophyllene (31.5%), germacrene D (27.5%) and bicyclogermacrene (13.9%) predominated. The essential oils were examined for antibiotic activities alone and in combination with aminoglycosides by a microdilution assay utilizing five bacterial strains. They exhibited significant antibacterial activities, mainly against Proteus vulgaris (MIC 64 μg/mL, L. camara; MIC 128 μg/mL, L. montevidensis). Both oils also showed a synergistic effect on the activity of aminoglycoside antibiotics. Thus, the essential oils of L. camara and L. montevidensis could be used as a source of plant-derived natural products with resistance-modifying antibacterial activity. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.703494
in The journal of essential oil research > Vol. 24 N° 5 (Octobre 2012) . - pp. 453-459
Titre : Chemical composition, anti-angiogenic and cytotoxicity activities of the essential oils of cymbopogan citratus (lemon grass) against colorectal and breast carcinoma cell lines Type de document : texte imprimé Auteurs : Suthagar Pillai Piaru, Auteur ; Shanmugapriya Perumal, Auteur ; Lee Wei Cai, Auteur Année de publication : 2013 Article en page(s) : pp. 453-459 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Angiogenesis Cymbopogan citratus Cytotoxicity Essential oil Essential oil composition Résumé : The essential oil of Cymbopogan citratus (lemon grass) was isolated by steam distillation method and subjected to cytotoxicity activity using two different cell lines, human colon carcinoma (HCT-116), breast carcinoma cell lines (MCF-7) and anti-angiogenic activity. The cytotoxicity activity study was determined using the MTT [3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-2,4-tetrazolium bromide] assay and anti-angiogenic activity using rat aortic ring model. The chemical composition of the essential oil was determined by gas chromatography–mass spectrometry (GC–MS) and GC–flame ionization detection (FID). Forty-one compounds, representing 88.5% of the lemon grass oil was identified and the main components were neral (29.8%) and geranial (44.6%). The free radical scavenging activity of the essential oil showed an IC50 value of 156.1 μg/mL. The results showed that essential oil of lemon grass possessed potential cytotoxic effect on HCT-116 and with the IC50 value of 27.41 ± 4.3 μg/mL comparing to MCF-7 with IC50 value of 41.90 ± 1.2 μg/mL. Significant anti-angiogenic activity of the sample was observed with 99 ± 0.8% of inhibition at 100 μg/mL. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.703496 [article] Chemical composition, anti-angiogenic and cytotoxicity activities of the essential oils of cymbopogan citratus (lemon grass) against colorectal and breast carcinoma cell lines [texte imprimé] / Suthagar Pillai Piaru, Auteur ; Shanmugapriya Perumal, Auteur ; Lee Wei Cai, Auteur . - 2013 . - pp. 453-459.
Génie Chimique
Langues : Anglais (eng)
in The journal of essential oil research > Vol. 24 N° 5 (Octobre 2012) . - pp. 453-459
Mots-clés : Angiogenesis Cymbopogan citratus Cytotoxicity Essential oil Essential oil composition Résumé : The essential oil of Cymbopogan citratus (lemon grass) was isolated by steam distillation method and subjected to cytotoxicity activity using two different cell lines, human colon carcinoma (HCT-116), breast carcinoma cell lines (MCF-7) and anti-angiogenic activity. The cytotoxicity activity study was determined using the MTT [3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-2,4-tetrazolium bromide] assay and anti-angiogenic activity using rat aortic ring model. The chemical composition of the essential oil was determined by gas chromatography–mass spectrometry (GC–MS) and GC–flame ionization detection (FID). Forty-one compounds, representing 88.5% of the lemon grass oil was identified and the main components were neral (29.8%) and geranial (44.6%). The free radical scavenging activity of the essential oil showed an IC50 value of 156.1 μg/mL. The results showed that essential oil of lemon grass possessed potential cytotoxic effect on HCT-116 and with the IC50 value of 27.41 ± 4.3 μg/mL comparing to MCF-7 with IC50 value of 41.90 ± 1.2 μg/mL. Significant anti-angiogenic activity of the sample was observed with 99 ± 0.8% of inhibition at 100 μg/mL. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.703496
in The journal of essential oil research > Vol. 24 N° 5 (Octobre 2012) . - pp. 461-463
Titre : Essential oil composition of Morina longifolia Wall. ex DC. from the Himalayan region Type de document : texte imprimé Auteurs : R. S. Chauhan, Auteur ; M. C. Nautiyal, Auteur ; A. Tava, Auteur Année de publication : 2013 Article en page(s) : pp. 461-463 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Bicyclogermacrene Essential oil composition Germacrene D Limonene Morina longifolia Morinaceae Myrcene Terpenes Résumé : Morina longifolia Wall. ex DC. is an important aromatic plant that is also well-known in ethnomedicine in the Himalayan region. The aerial parts of the plant were collected during the flowering stage and steam distilled in order to characterize the essential oil composition. Thirty-three compounds constituting 94.2% of the total volatiles were identified using gas chromatography–flame ionization detection (GC–FID) and GC–mass spectrometry (GC–MS). The major constituent of the volatile fraction was β-myrcene (42.5%), whereas other important constituents were bicyclogermacrene (8.9%), germacrene D (6.7%) and limonene (6.3%). The characterization of the essential oil might help out to establish new potential applications for this species, both as herbal supplement and as fragrance agent. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.703500 [article] Essential oil composition of Morina longifolia Wall. ex DC. from the Himalayan region [texte imprimé] / R. S. Chauhan, Auteur ; M. C. Nautiyal, Auteur ; A. Tava, Auteur . - 2013 . - pp. 461-463.
Génie Chimique
Langues : Anglais (eng)
in The journal of essential oil research > Vol. 24 N° 5 (Octobre 2012) . - pp. 461-463
Mots-clés : Bicyclogermacrene Essential oil composition Germacrene D Limonene Morina longifolia Morinaceae Myrcene Terpenes Résumé : Morina longifolia Wall. ex DC. is an important aromatic plant that is also well-known in ethnomedicine in the Himalayan region. The aerial parts of the plant were collected during the flowering stage and steam distilled in order to characterize the essential oil composition. Thirty-three compounds constituting 94.2% of the total volatiles were identified using gas chromatography–flame ionization detection (GC–FID) and GC–mass spectrometry (GC–MS). The major constituent of the volatile fraction was β-myrcene (42.5%), whereas other important constituents were bicyclogermacrene (8.9%), germacrene D (6.7%) and limonene (6.3%). The characterization of the essential oil might help out to establish new potential applications for this species, both as herbal supplement and as fragrance agent. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.703500
in The journal of essential oil research > Vol. 24 N° 5 (Octobre 2012) . - pp. 465-470
Titre : Evaluation of some essential oils as alternative antibiotics against American foulbrood agent Paenibacillus larvae on honey bees Apis mellifera L Type de document : texte imprimé Auteurs : Aslı Özkırım, Auteur ; Nevin Keskin, Auteur ; Mine Kürkçüoğlu, Auteur Année de publication : 2013 Article en page(s) : pp. 465-470 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Apis mellifera Paenibacillus larvae Antibiotic American Foulbrood Essential oils Treatment Colony losses Résumé : In this study, antibacterial activities of some essential oils against Paenibacillus larvae were investigated as an alternative to synthetic antibiotics used against American foulbrood (AFB), which causes serious damage to the beekeeping industry. Ten essential oils belonging to various species and carvacrol, the major component of Origanum onites oil, were analyzed. Besides examining the antibacterial activities of the essential oils in the experiments, composition of the oils was investigated by gas chromatography (GC) and GC–mass spectroscopy (GC–MS) analysis. The minimum inhibition concentrations (MICs) of the effective essential oils were also determined. The conclusions resulting from these observations were that Origanum onites oil showed the strongest antibacterial activity. Rosmarinus officinalis, Seseli andronakii, Pimpinella anisum, Heracleum platytaenium, Anethum graveolens, Bifora radians, and Seseli tortuosum were respectively found to be effective coming after Origanum onites. Seseli petraeum and Seseli resinosum, two different species within the same genus showed no antibacterial activity against AFB. The results show that composition of the essential oils is very important for antibacterial effect; in fact antibacterial effect is determined by the major component in the essential oil composition. However, intercomponent synergetic effect is as important as the major component itself according to the results of carvacrol experiments. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.703504 [article] Evaluation of some essential oils as alternative antibiotics against American foulbrood agent Paenibacillus larvae on honey bees Apis mellifera L [texte imprimé] / Aslı Özkırım, Auteur ; Nevin Keskin, Auteur ; Mine Kürkçüoğlu, Auteur . - 2013 . - pp. 465-470.
Génie Chimique
Langues : Anglais (eng)
in The journal of essential oil research > Vol. 24 N° 5 (Octobre 2012) . - pp. 465-470
Mots-clés : Apis mellifera Paenibacillus larvae Antibiotic American Foulbrood Essential oils Treatment Colony losses Résumé : In this study, antibacterial activities of some essential oils against Paenibacillus larvae were investigated as an alternative to synthetic antibiotics used against American foulbrood (AFB), which causes serious damage to the beekeeping industry. Ten essential oils belonging to various species and carvacrol, the major component of Origanum onites oil, were analyzed. Besides examining the antibacterial activities of the essential oils in the experiments, composition of the oils was investigated by gas chromatography (GC) and GC–mass spectroscopy (GC–MS) analysis. The minimum inhibition concentrations (MICs) of the effective essential oils were also determined. The conclusions resulting from these observations were that Origanum onites oil showed the strongest antibacterial activity. Rosmarinus officinalis, Seseli andronakii, Pimpinella anisum, Heracleum platytaenium, Anethum graveolens, Bifora radians, and Seseli tortuosum were respectively found to be effective coming after Origanum onites. Seseli petraeum and Seseli resinosum, two different species within the same genus showed no antibacterial activity against AFB. The results show that composition of the essential oils is very important for antibacterial effect; in fact antibacterial effect is determined by the major component in the essential oil composition. However, intercomponent synergetic effect is as important as the major component itself according to the results of carvacrol experiments. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.703504
in The journal of essential oil research > Vol. 24 N° 5 (Octobre 2012) . - pp. 471-474
Titre : Chemical composition of the leaf oil of cleistopholis glauca Pierre ex Engler & Diels from Côte d’Ivoire Type de document : texte imprimé Auteurs : Zana A. Ouattara, Auteur ; Jean Brice Boti, Auteur ; Coffy Antoine Ahibo, Auteur Année de publication : 2013 Article en page(s) : pp. 471-474 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Cleistopholis glauca Pierre ex Engler & Diels Essential oil composition Germacrene D (E)-β-caryophyllene 13C NMR Résumé : The composition of fifteen leaf oil samples from individual plants of Cleistopholis glauca Pierre ex Engler & Diels growing wild in Côte d’Ivoire was investigated by gas chromatography (in combination with retention indices) and carbon-13 nuclear magnetic resonance (13C NMR). Thirty-three compounds accounting for 88.8 to 95.4% of the oil have been identified. Cleistopholis glauca produces a sesquiterpene-rich oil, germacrene D (16.4–46.5%) and (E)-β-caryophyllene (8.0–26.2%) being the main components. In a few samples, monoterpene hydrocarbons were present as appreciable contents: myrcene (up to 39.7%), β-pinene (up to 24.8%) and α-pinene (up to 16.4%). ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.703506 [article] Chemical composition of the leaf oil of cleistopholis glauca Pierre ex Engler & Diels from Côte d’Ivoire [texte imprimé] / Zana A. Ouattara, Auteur ; Jean Brice Boti, Auteur ; Coffy Antoine Ahibo, Auteur . - 2013 . - pp. 471-474.
Génie Chimique
Langues : Anglais (eng)
in The journal of essential oil research > Vol. 24 N° 5 (Octobre 2012) . - pp. 471-474
Mots-clés : Cleistopholis glauca Pierre ex Engler & Diels Essential oil composition Germacrene D (E)-β-caryophyllene 13C NMR Résumé : The composition of fifteen leaf oil samples from individual plants of Cleistopholis glauca Pierre ex Engler & Diels growing wild in Côte d’Ivoire was investigated by gas chromatography (in combination with retention indices) and carbon-13 nuclear magnetic resonance (13C NMR). Thirty-three compounds accounting for 88.8 to 95.4% of the oil have been identified. Cleistopholis glauca produces a sesquiterpene-rich oil, germacrene D (16.4–46.5%) and (E)-β-caryophyllene (8.0–26.2%) being the main components. In a few samples, monoterpene hydrocarbons were present as appreciable contents: myrcene (up to 39.7%), β-pinene (up to 24.8%) and α-pinene (up to 16.4%). ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.703506
in The journal of essential oil research > Vol. 24 N° 5 (Octobre 2012) . - pp. 475-480
Titre : Chemical variability of the essential oils from Rosa canina L. and Rosa sempervirens L. flowers collected at Tunisia Type de document : texte imprimé Auteurs : H. Ghazghazi, Auteur ; M. G. Miguel, Auteur ; M. Weslati, Auteur Année de publication : 2013 Article en page(s) : pp. 475-480 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Rosa canina Rosa sempervirens Rosaceae Essential oils Chemical variability Cluster analysis Résumé : The chemical variability of the essential oils of Rosa canina L. and R. sempervirens L. flowers collected at seven localities from northern Tunisia was investigated by gas chromatography (GC) and GC–mass spectrometry (GC–MS). The essential oils yields ranged between 0.7% and 1.4% (v/f.w.) for R. canina and R. sempervirens, respectively. Forty-one components were identified in R. canina and twenty-six in R. sempervirens oils. Rosa canina essential oil, from plants collected at Ain Draham, was dominated by β-caryophyllene (32%) and geraniol (21%), whereas in the oils from plants collected at Boussalem n-heneicosane (29%), p-cymene (12%) and β-caryophyllene (11%) predominated. However, the oil isolated from the samples collected at Fernana was dominated by 2,4,6-trimethyl-octane (9%), n-undecane (8%) and geraniol (8%). p-Cymene (14%), limonene (11%) and γ-terpinene (11%) were the main components of the oil isolated from Feija samples. Rosa sempervirens oils, from plants collected at Ain Draham and Fernana, were characterized by a high 2-phenylethyl alcohol content (29% and 93%, respectively). The major components of the oil isolated from Tabarka samples were p-cymene (16%) and γ-terpinene (12%). Cluster analysis of the essential oils composition from the studied populations, confirmed the major chemical variability. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.703509 [article] Chemical variability of the essential oils from Rosa canina L. and Rosa sempervirens L. flowers collected at Tunisia [texte imprimé] / H. Ghazghazi, Auteur ; M. G. Miguel, Auteur ; M. Weslati, Auteur . - 2013 . - pp. 475-480.
Génie Chimique
Langues : Anglais (eng)
in The journal of essential oil research > Vol. 24 N° 5 (Octobre 2012) . - pp. 475-480
Mots-clés : Rosa canina Rosa sempervirens Rosaceae Essential oils Chemical variability Cluster analysis Résumé : The chemical variability of the essential oils of Rosa canina L. and R. sempervirens L. flowers collected at seven localities from northern Tunisia was investigated by gas chromatography (GC) and GC–mass spectrometry (GC–MS). The essential oils yields ranged between 0.7% and 1.4% (v/f.w.) for R. canina and R. sempervirens, respectively. Forty-one components were identified in R. canina and twenty-six in R. sempervirens oils. Rosa canina essential oil, from plants collected at Ain Draham, was dominated by β-caryophyllene (32%) and geraniol (21%), whereas in the oils from plants collected at Boussalem n-heneicosane (29%), p-cymene (12%) and β-caryophyllene (11%) predominated. However, the oil isolated from the samples collected at Fernana was dominated by 2,4,6-trimethyl-octane (9%), n-undecane (8%) and geraniol (8%). p-Cymene (14%), limonene (11%) and γ-terpinene (11%) were the main components of the oil isolated from Feija samples. Rosa sempervirens oils, from plants collected at Ain Draham and Fernana, were characterized by a high 2-phenylethyl alcohol content (29% and 93%, respectively). The major components of the oil isolated from Tabarka samples were p-cymene (16%) and γ-terpinene (12%). Cluster analysis of the essential oils composition from the studied populations, confirmed the major chemical variability. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.703509
in The journal of essential oil research > Vol. 24 N° 5 (Octobre 2012) . - pp. 481-486
Titre : Antibacterial activity of eugenol and peppermint oil in model food systems Type de document : texte imprimé Auteurs : Ann A. Catherine, Auteur ; Hanumanthiah Deepika, Auteur ; Pradeep S. Negi, Auteur Année de publication : 2013 Article en page(s) : pp. 481-486 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Antimicrobial activity Barley Cabbage Eugenol Papaya Pathogens and peppermint oil Résumé : Food borne illness caused by microorganisms is a large and growing public health concern worldwide. Due to increased concerns of food safety and consumer demand for safer additives there is growing interests in use of natural antimicrobial compounds, and essential oils are being explored for food uses. In the present study, we have evaluated the antibacterial activity of eugenol and peppermint oil against two Gram-positive and two Gram-negative bacteria, and both the oils inhibited growth of tested bacteria with minimum inhibitory concentration (MIC) of 0.25% or below. The efficacy of these oils was also tested in model food systems (cabbage and barley) and real food (papaya pulp) during storage. At MIC, the growth of bacteria was similar to control in model foods, however double of MIC was effective in reducing the bacterial growth in both the model systems. For similar reduction in bacterial count in papaya pulp, five-fold MIC of essential oils was required. Due to high inhibitory concentration of essential oils in papaya, their effect on sensory and textural properties of foods needs a deeper study. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.703513 [article] Antibacterial activity of eugenol and peppermint oil in model food systems [texte imprimé] / Ann A. Catherine, Auteur ; Hanumanthiah Deepika, Auteur ; Pradeep S. Negi, Auteur . - 2013 . - pp. 481-486.
Génie Chimique
Langues : Anglais (eng)
in The journal of essential oil research > Vol. 24 N° 5 (Octobre 2012) . - pp. 481-486
Mots-clés : Antimicrobial activity Barley Cabbage Eugenol Papaya Pathogens and peppermint oil Résumé : Food borne illness caused by microorganisms is a large and growing public health concern worldwide. Due to increased concerns of food safety and consumer demand for safer additives there is growing interests in use of natural antimicrobial compounds, and essential oils are being explored for food uses. In the present study, we have evaluated the antibacterial activity of eugenol and peppermint oil against two Gram-positive and two Gram-negative bacteria, and both the oils inhibited growth of tested bacteria with minimum inhibitory concentration (MIC) of 0.25% or below. The efficacy of these oils was also tested in model food systems (cabbage and barley) and real food (papaya pulp) during storage. At MIC, the growth of bacteria was similar to control in model foods, however double of MIC was effective in reducing the bacterial growth in both the model systems. For similar reduction in bacterial count in papaya pulp, five-fold MIC of essential oils was required. Due to high inhibitory concentration of essential oils in papaya, their effect on sensory and textural properties of foods needs a deeper study. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.703513
in The journal of essential oil research > Vol. 24 N° 5 (Octobre 2012) . - pp. 487-491
Titre : Assessment of similarities and dissimilarities in the essential oils of patchouli and Indian Valerian Type de document : texte imprimé Auteurs : Ram S. Verma, Auteur ; Rajendra C. Padalia, Auteur ; Amit Chauhan, Auteur Année de publication : 2013 Article en page(s) : pp. 487-491 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Pogostemon cablin Valeriana jatamansi Essential oil Chemical differentiation Marker compounds Résumé : Two chemically alike essential oils derived from two disjunct genera namely patchouli (Pogostemon cablin (Blanco) Benth.) and Indian Valerian (Valeriana jatamansi Jones) were investigated for identification of marker compounds by gas chromatography–flame ionization detection (GC–FID) and GC–mass spectrometry (GC–MS). Inspite of huge chemical resemblance these two essential oils can be authenticated by their characteristics minor or trace constituents. The marker constituents identified for P. cablin oil were pogostone, pogostol, and (Z)-thujopsene, whereas marker constituents for V. jatamansi oil were 3-methyl valeric acid, thymol methyl ether, carvacrol methyl ether, bornyl acetate, kessane, maaliol, xanthorrhizol, and 8-acetoxy patchouli alcohol. These marker constituents may be utilized as an important tool in oil authentications. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.705095 [article] Assessment of similarities and dissimilarities in the essential oils of patchouli and Indian Valerian [texte imprimé] / Ram S. Verma, Auteur ; Rajendra C. Padalia, Auteur ; Amit Chauhan, Auteur . - 2013 . - pp. 487-491.
Génie Chimique
Langues : Anglais (eng)
in The journal of essential oil research > Vol. 24 N° 5 (Octobre 2012) . - pp. 487-491
Mots-clés : Pogostemon cablin Valeriana jatamansi Essential oil Chemical differentiation Marker compounds Résumé : Two chemically alike essential oils derived from two disjunct genera namely patchouli (Pogostemon cablin (Blanco) Benth.) and Indian Valerian (Valeriana jatamansi Jones) were investigated for identification of marker compounds by gas chromatography–flame ionization detection (GC–FID) and GC–mass spectrometry (GC–MS). Inspite of huge chemical resemblance these two essential oils can be authenticated by their characteristics minor or trace constituents. The marker constituents identified for P. cablin oil were pogostone, pogostol, and (Z)-thujopsene, whereas marker constituents for V. jatamansi oil were 3-methyl valeric acid, thymol methyl ether, carvacrol methyl ether, bornyl acetate, kessane, maaliol, xanthorrhizol, and 8-acetoxy patchouli alcohol. These marker constituents may be utilized as an important tool in oil authentications. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.705095
in The journal of essential oil research > Vol. 24 N° 5 (Octobre 2012) . - pp.493-500
Titre : Differences in the effects of essential oil from Citrus junos and (+)-limonene on emotional behavior in mice Type de document : texte imprimé Auteurs : Tadaaki Satou, Auteur ; Nobuhiro Miyahara, Auteur ; Shio Murakami, Auteur Année de publication : 2013 Article en page(s) : pp.493-500 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Citrus junos Essential oil Limonene Emotional behavior Anxiolytic-like effect Résumé : Citrus junos (Yuzu, CJ) is a traditional fruit in Japan and its essential oil (EO) has been used in food, cosmetics, and traditional medicine. The present study examined the influence of essential oil from Citrus junos (EOCJ) on emotional behavior in mice, and how its action differed in comparison to (+)-limonene (LI), its major component. The influence of inhaled administration (i.h.) of EOCJ for 90 minutes on mouse emotional behavior was examined using the light/dark box (LDB) test, open field (OF) test, and elevated plus-maze (EPM) test. In addition, gas chromatography (GC) was used in clarifying the amount of LI absorbed in the internal organs. Inhalation of EOCJ at 3.4 and 6.7 mg/L air indicated the tendency for an anxiolytic-like effect in LDB and EPM tests. In addition, an increase in locomotor activity was observed at 6.7 mg/L air EOCJ (i.h.) in the OF test. Inhalation of (+)-LI at 3.4 and 6.7 mg/L air indicated the same anxiolytic-like effect in EPM test as with EOCJ. In contrast, the anxiolytic-like effect of (+)-LI was smaller than that of EOCJ in the LDB test. Furthermore, an increase in locomotor activity was not observed at 6.7 mg/L air (+)-LI (i.h.). ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.705100 [article] Differences in the effects of essential oil from Citrus junos and (+)-limonene on emotional behavior in mice [texte imprimé] / Tadaaki Satou, Auteur ; Nobuhiro Miyahara, Auteur ; Shio Murakami, Auteur . - 2013 . - pp.493-500.
Génie Chimique
Langues : Anglais (eng)
in The journal of essential oil research > Vol. 24 N° 5 (Octobre 2012) . - pp.493-500
Mots-clés : Citrus junos Essential oil Limonene Emotional behavior Anxiolytic-like effect Résumé : Citrus junos (Yuzu, CJ) is a traditional fruit in Japan and its essential oil (EO) has been used in food, cosmetics, and traditional medicine. The present study examined the influence of essential oil from Citrus junos (EOCJ) on emotional behavior in mice, and how its action differed in comparison to (+)-limonene (LI), its major component. The influence of inhaled administration (i.h.) of EOCJ for 90 minutes on mouse emotional behavior was examined using the light/dark box (LDB) test, open field (OF) test, and elevated plus-maze (EPM) test. In addition, gas chromatography (GC) was used in clarifying the amount of LI absorbed in the internal organs. Inhalation of EOCJ at 3.4 and 6.7 mg/L air indicated the tendency for an anxiolytic-like effect in LDB and EPM tests. In addition, an increase in locomotor activity was observed at 6.7 mg/L air EOCJ (i.h.) in the OF test. Inhalation of (+)-LI at 3.4 and 6.7 mg/L air indicated the same anxiolytic-like effect in EPM test as with EOCJ. In contrast, the anxiolytic-like effect of (+)-LI was smaller than that of EOCJ in the LDB test. Furthermore, an increase in locomotor activity was not observed at 6.7 mg/L air (+)-LI (i.h.). ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.705100
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