Dépouillements

Gas chromatography for the characterization of the mushroom-like flavor in Melittis melissophyllum L. (Lamiaceae) / Filippo Maggi 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. 321-337 Titre : Gas chromatography for the characterization of the mushroom-like flavor in Melittis melissophyllum L. (Lamiaceae) Type de document : texte imprimé Auteurs : Filippo Maggi, Auteur ; Fabrizio Papa, Auteur ; Sauro Vittori, Auteur Année de publication : 2012 Article en page(s) : pp. 321-337 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Melittis  melissophyllum  Lamiaceae  Essential  oil  GC/FID  GC/MS  SPME Résumé : 1-Octen-3-ol is an eight-carbon atom alcohol playing the major role in conferring the typical and unmistakable aroma to edible mushrooms. The presence of 1-octen-3-ol in plants was highlighted in the 1940s in various kinds of mint and lavender essential oils. Since then, many Lamiaceae were found to contain this molecule, but, to our knowledge, the plant essential oil that contains the highest percentage of this molecule is that of Melittis melissophyllum. In the present review, we reported all studies based on gas chromatography performed on this plant in order to characterize its mushroom-like flavor. This plant revealed to be a source providing economically interesting natural flavor to be exploited in the near future. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.692899 [article] Gas chromatography for the characterization of the mushroom-like flavor in Melittis melissophyllum L. (Lamiaceae) [texte imprimé] / Filippo Maggi, Auteur ; Fabrizio Papa, Auteur ; Sauro Vittori, Auteur . - 2012 . - pp. 321-337. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 24 N° 4 (Août 2012) . - pp. 321-337 Mots-clés : Melittis  melissophyllum  Lamiaceae  Essential  oil  GC/FID  GC/MS  SPME Résumé : 1-Octen-3-ol is an eight-carbon atom alcohol playing the major role in conferring the typical and unmistakable aroma to edible mushrooms. The presence of 1-octen-3-ol in plants was highlighted in the 1940s in various kinds of mint and lavender essential oils. Since then, many Lamiaceae were found to contain this molecule, but, to our knowledge, the plant essential oil that contains the highest percentage of this molecule is that of Melittis melissophyllum. In the present review, we reported all studies based on gas chromatography performed on this plant in order to characterize its mushroom-like flavor. This plant revealed to be a source providing economically interesting natural flavor to be exploited in the near future. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.692899

Chemical composition and antimicrobial activities of essential oil and its components from Lebanese Origanum syriacum L. / Ludmilla Ibrahim 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. 339-345 Titre : Chemical composition and antimicrobial activities of essential oil and its components from Lebanese Origanum syriacum L. Type de document : texte imprimé Auteurs : Ludmilla Ibrahim, Auteur ; Mohamad Karaky, Auteur ; Pascale Ayoub, Auteur Année de publication : 2012 Article en page(s) : pp. 339-345 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Origanum  syriacum  Lamiaceae  Essential  oil  composition  Carvacrol  γ-terpinene  Antifungal  activity  Antibacterial  activity Résumé : The chemical composition of essential oils isolated by hydrodistillation from the aerial parts of cultivated and wild Origanum syriacum were analyzed by gas chromatograph (GC) and GC/mass spectrometry (GC/MS). Regardless of growing habitat, both oils were characterized as carvacrol/γ-terpinene chemotypes. High in vitro antimicrobial activities of essential oil were attributed to the high content of phenolic derivative such as carvacrol. Total inhibition of fungal growth was achieved at 0.25–0.50 μL/mL of essential oil. Bacteria on the other hand, were slightly more susceptible to the essential oil with minimal inhibitory concentration (MIC) ranging from 0.15 μL/mL to 0.50 μL/mL. Carvacrol and thymol were the most detrimental compounds towards both bacterial and fungal microorganisms with inhibition concentration at 50% (IC50) ranging between 0.01 and 0.18 μL/mL for bacteria and with total inhibition of fungal growth at a range of concentrations between 0.25 and 0.75 μL/mL. Antimicrobial activities of α-terpinene, p-cymene and β-caryophyllene were comparable with the activities of crude oil extract against almost all microorganisms. p-cymene, however, stimulated mycelial growth of Metarhizium anisopliae. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.692900 [article] Chemical composition and antimicrobial activities of essential oil and its components from Lebanese Origanum syriacum L. [texte imprimé] / Ludmilla Ibrahim, Auteur ; Mohamad Karaky, Auteur ; Pascale Ayoub, Auteur . - 2012 . - pp. 339-345. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 24 N° 4 (Août 2012) . - pp. 339-345 Mots-clés : Origanum  syriacum  Lamiaceae  Essential  oil  composition  Carvacrol  γ-terpinene  Antifungal  activity  Antibacterial  activity Résumé : The chemical composition of essential oils isolated by hydrodistillation from the aerial parts of cultivated and wild Origanum syriacum were analyzed by gas chromatograph (GC) and GC/mass spectrometry (GC/MS). Regardless of growing habitat, both oils were characterized as carvacrol/γ-terpinene chemotypes. High in vitro antimicrobial activities of essential oil were attributed to the high content of phenolic derivative such as carvacrol. Total inhibition of fungal growth was achieved at 0.25–0.50 μL/mL of essential oil. Bacteria on the other hand, were slightly more susceptible to the essential oil with minimal inhibitory concentration (MIC) ranging from 0.15 μL/mL to 0.50 μL/mL. Carvacrol and thymol were the most detrimental compounds towards both bacterial and fungal microorganisms with inhibition concentration at 50% (IC50) ranging between 0.01 and 0.18 μL/mL for bacteria and with total inhibition of fungal growth at a range of concentrations between 0.25 and 0.75 μL/mL. Antimicrobial activities of α-terpinene, p-cymene and β-caryophyllene were comparable with the activities of crude oil extract against almost all microorganisms. p-cymene, however, stimulated mycelial growth of Metarhizium anisopliae. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.692900

Essential oil composition of Tordylium syriacum L. (Umbelliferae) collected from different localities in Turkey / M. Kürkçüoğlu 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. 347-350 Titre : Essential oil composition of Tordylium syriacum L. (Umbelliferae) collected from different localities in Turkey Type de document : texte imprimé Auteurs : M. Kürkçüoğlu, Auteur ; K. H. C. Başer, Auteur ; A. Tosun, Auteur Année de publication : 2012 Article en page(s) : pp. 347-350 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Umbelliferae  Tordylium  L  Tordylium  syriacum  L  GC  GC/MS  Octyl  hexanoate Résumé : Essential oils of Tordylium syriacum collected from different localities of Turkey were analyzed by gas chromatography (GC) and gas chromatography/mass spectrometry (GC/MS). The fruits of T. syriacum were submitted for hydrodistillation and the essential oils were obtained in 0.1–0.7% yield. The compounds characterized represented 91.7–94.7% of the oils. The main constituent was found to be octyl hexanoate (46.2–80.5%). ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.692901 [article] Essential oil composition of Tordylium syriacum L. (Umbelliferae) collected from different localities in Turkey [texte imprimé] / M. Kürkçüoğlu, Auteur ; K. H. C. Başer, Auteur ; A. Tosun, Auteur . - 2012 . - pp. 347-350. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 24 N° 4 (Août 2012) . - pp. 347-350 Mots-clés : Umbelliferae  Tordylium  L  Tordylium  syriacum  L  GC  GC/MS  Octyl  hexanoate Résumé : Essential oils of Tordylium syriacum collected from different localities of Turkey were analyzed by gas chromatography (GC) and gas chromatography/mass spectrometry (GC/MS). The fruits of T. syriacum were submitted for hydrodistillation and the essential oils were obtained in 0.1–0.7% yield. The compounds characterized represented 91.7–94.7% of the oils. The main constituent was found to be octyl hexanoate (46.2–80.5%). ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.692901

Antimicrobial activity of the essential oils from the leaves of two morphotypes of Croton cajucara Benth / Mariana M. B. Azevedo 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. 351-357 Titre : Antimicrobial activity of the essential oils from the leaves of two morphotypes of Croton cajucara Benth Type de document : texte imprimé Auteurs : Mariana M. B. Azevedo, Auteur ; Aline Q. Pereira, Auteur ; Francisco C. M. Chaves, Auteur Année de publication : 2012 Article en page(s) : pp. 351-357 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Antimicrobial  activity  Essential  oil  composition  Croton  cajucara  Candida  albicans  Staphylococcus  aureus  Linalool  7-hydroxycalamenene Résumé : Croton cajucara Benth. (Euphorbiaceae) is a shrub native to Amazon region and locally known as sacaca. Two morphotypes are known, namely white ‘sacaca’ and red ‘sacaca’. The essential oils from the leaves of these morphotypes are rich in linalool and 7-hydroxycalamenene, respectively. The effectiveness of the oils from forty individuals from a germplasm bank regarding the antimicrobial activity against Staphylococcus aureus and Candida albicans was investigated by drop diffusion (or agar diffusion) method. Expressive inhibition zones for both microorganisms tested were observed. Essential oils rich in 7-hydroxycalamenene were more effective against S. aureus while linalool-rich essential oils acted inhibiting C. albicans. The minimal inhibitory (MIC) and microbicidal concentrations of the main constituents of the oils were also determined, using broth dilution assay. It was observed that isolated 7-hydroxycalamenene presented high bactericidal activity, with a MIC of 0.3 μg/mL, while for fungicidal activity a MIC of 45 μg/mL was recorded. For S. aureus, the isolated 7-hydroxycalamenene was more active than the whole oil, whereas the linalool-rich essential oil presented higher bactericide activity than pure linalool. For C. albicans, however, pure linalool was more active than the whole essential oil. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.692902 [article] Antimicrobial activity of the essential oils from the leaves of two morphotypes of Croton cajucara Benth [texte imprimé] / Mariana M. B. Azevedo, Auteur ; Aline Q. Pereira, Auteur ; Francisco C. M. Chaves, Auteur . - 2012 . - pp. 351-357. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 24 N° 4 (Août 2012) . - pp. 351-357 Mots-clés : Antimicrobial  activity  Essential  oil  composition  Croton  cajucara  Candida  albicans  Staphylococcus  aureus  Linalool  7-hydroxycalamenene Résumé : Croton cajucara Benth. (Euphorbiaceae) is a shrub native to Amazon region and locally known as sacaca. Two morphotypes are known, namely white ‘sacaca’ and red ‘sacaca’. The essential oils from the leaves of these morphotypes are rich in linalool and 7-hydroxycalamenene, respectively. The effectiveness of the oils from forty individuals from a germplasm bank regarding the antimicrobial activity against Staphylococcus aureus and Candida albicans was investigated by drop diffusion (or agar diffusion) method. Expressive inhibition zones for both microorganisms tested were observed. Essential oils rich in 7-hydroxycalamenene were more effective against S. aureus while linalool-rich essential oils acted inhibiting C. albicans. The minimal inhibitory (MIC) and microbicidal concentrations of the main constituents of the oils were also determined, using broth dilution assay. It was observed that isolated 7-hydroxycalamenene presented high bactericidal activity, with a MIC of 0.3 μg/mL, while for fungicidal activity a MIC of 45 μg/mL was recorded. For S. aureus, the isolated 7-hydroxycalamenene was more active than the whole oil, whereas the linalool-rich essential oil presented higher bactericide activity than pure linalool. For C. albicans, however, pure linalool was more active than the whole essential oil. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.692902

Volatile constituents of tzitzilché flower (Gymnopodium floribundum Rolfe) from Yucatan Peninsula, Mexico / Luis Cuevas-Glory 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. 359-361 Titre : Volatile constituents of tzitzilché flower (Gymnopodium floribundum Rolfe) from Yucatan Peninsula, Mexico Type de document : texte imprimé Auteurs : Luis Cuevas-Glory, Auteur ; Odri Sosa-Moguel, Auteur ; Elizabeth Ortiz-Vázquez, Auteur Année de publication : 2012 Article en page(s) : pp. 359-361 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Gymnopodium  floribundum  Tzitzilché  flower  Volatiles  HS-SPME  GC–MS  (E)--ocimene  2-ethyl-1-hexanol  Linalool Résumé : Volatile compounds were isolated in tzitzilché flower (Gymnopodium floribundum Rolfe) by headspace solid-phase microextraction and analyzed by capillary gas chromatography–flame ionization detection (GC–FID) and gas chromatography–mass spectrometry (GC–MS). Fifty-six compounds were identified, the major constituents being (E)--ocimene (21.4%), 2-ethyl-1-hexanol (14.6%) and linalool (10.1%). ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.692906 [article] Volatile constituents of tzitzilché flower (Gymnopodium floribundum Rolfe) from Yucatan Peninsula, Mexico [texte imprimé] / Luis Cuevas-Glory, Auteur ; Odri Sosa-Moguel, Auteur ; Elizabeth Ortiz-Vázquez, Auteur . - 2012 . - pp. 359-361. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 24 N° 4 (Août 2012) . - pp. 359-361 Mots-clés : Gymnopodium  floribundum  Tzitzilché  flower  Volatiles  HS-SPME  GC–MS  (E)--ocimene  2-ethyl-1-hexanol  Linalool Résumé : Volatile compounds were isolated in tzitzilché flower (Gymnopodium floribundum Rolfe) by headspace solid-phase microextraction and analyzed by capillary gas chromatography–flame ionization detection (GC–FID) and gas chromatography–mass spectrometry (GC–MS). Fifty-six compounds were identified, the major constituents being (E)--ocimene (21.4%), 2-ethyl-1-hexanol (14.6%) and linalool (10.1%). ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.692906

Bactericidal effects and time–kill studies of the essential oil from the fruits of Zanthoxylum limonella on multi-drug resistant bacteria / Janpen Tangjitjaroenkun 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. 363-370 Titre : Bactericidal effects and time–kill studies of the essential oil from the fruits of Zanthoxylum limonella on multi-drug resistant bacteria Type de document : texte imprimé Auteurs : Janpen Tangjitjaroenkun, Auteur ; Warinthorn Chavasiri, Auteur ; Sudaluck Thunyaharn, Auteur Année de publication : 2012 Article en page(s) : pp. 363-370 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Bactericidal  Time–kill  Zanthoxylum  limonella  Essential  oil  Sabinene  Multi-drug  resistant  bacteria Résumé : Zanthoxylum limonella Alston is commonly used plant in Thailand for flavoring of foods and in traditional medicine. In this study, we investigated the crude essential oil, the distilled fractions thereof and the three pure major compounds of the oil from Z. limonella fruits for antibacterial activities against several bacteria including multi-drug resistant bacteria. The essential oil fractions I and II, and sabinene, the major compound of fractions I (54%) and II (41%), showed antibacterial activity against both Gram-positive and Gram-negative bacteria tested, except Pseudomonas aeruginosa. The crude oil showed higher antibacterial activity than sabinene against all tested bacteria, suggesting the presence of potent minor compound(s) with an additive effect, or less potent compound(s) with a synergistic effect among the components of the crude oil. The essential oil showed a potent killing effect, achieving a complete elimination of Staphylococcus aureus and Escherichia coli within a 9-minute exposure to a two-fold minimal bactericidal concentration level, while the multi-drug resistant bacteria, methicillin-resistant S. aureus and the extended-spectrum β-lactamase-producing E. coli, were completely eradicated within 90 minutes at the same dose. This is the first report on the essential oil from Z. limonella fruits against multi-drug resistant bacteria. The essential oil has potential uses in food preservation and as an antiseptic for medical use. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.692907 [article] Bactericidal effects and time–kill studies of the essential oil from the fruits of Zanthoxylum limonella on multi-drug resistant bacteria [texte imprimé] / Janpen Tangjitjaroenkun, Auteur ; Warinthorn Chavasiri, Auteur ; Sudaluck Thunyaharn, Auteur . - 2012 . - pp. 363-370. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 24 N° 4 (Août 2012) . - pp. 363-370 Mots-clés : Bactericidal  Time–kill  Zanthoxylum  limonella  Essential  oil  Sabinene  Multi-drug  resistant  bacteria Résumé : Zanthoxylum limonella Alston is commonly used plant in Thailand for flavoring of foods and in traditional medicine. In this study, we investigated the crude essential oil, the distilled fractions thereof and the three pure major compounds of the oil from Z. limonella fruits for antibacterial activities against several bacteria including multi-drug resistant bacteria. The essential oil fractions I and II, and sabinene, the major compound of fractions I (54%) and II (41%), showed antibacterial activity against both Gram-positive and Gram-negative bacteria tested, except Pseudomonas aeruginosa. The crude oil showed higher antibacterial activity than sabinene against all tested bacteria, suggesting the presence of potent minor compound(s) with an additive effect, or less potent compound(s) with a synergistic effect among the components of the crude oil. The essential oil showed a potent killing effect, achieving a complete elimination of Staphylococcus aureus and Escherichia coli within a 9-minute exposure to a two-fold minimal bactericidal concentration level, while the multi-drug resistant bacteria, methicillin-resistant S. aureus and the extended-spectrum β-lactamase-producing E. coli, were completely eradicated within 90 minutes at the same dose. This is the first report on the essential oil from Z. limonella fruits against multi-drug resistant bacteria. The essential oil has potential uses in food preservation and as an antiseptic for medical use. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.692907

Chemical composition of essential oils of Croton hirtus L’Her from Piauí (Brazil) / S.G. De Lima 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. 371-376 Titre : Chemical composition of essential oils of Croton hirtus L’Her from Piauí (Brazil) Type de document : texte imprimé Auteurs : S.G. De Lima, Auteur ; L.B.P. Medeiros, Auteur ; C.N.L.C. Cunha, Auteur Année de publication : 2012 Article en page(s) : pp. 371-376 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Croton  hirtus  Euphorbiaceae  Essential  oil  composition  E-caryophyllene  Spathulenol  Germacrene  D  Chemical  variability  Toxicity Résumé : The essential oils from the fresh leaves of Croton hirtus from two locations, Teresina and Simões in Piauí State, located in northeastern Brazil were obtained by hydrodistillation and analyzed by gas chromatography–flame ionization detection (GC–FID) and gas chromatography–mass spectrometry (GC–MS) techniques and further confirmed by 1H and 13C NMR. The main compounds found in the oil of the leaves from C. hirtus collected at Simões were spathulenol (26.7%), E-caryophyllene (10.0%), bicyclogermacrene (9.5%), α-cadinol (7.7%) and cubenol (7.0%). At Teresina, the harvest was carried out in two different months and in three periods of the day, and E-caryophyllene (27.9–37.3%), germacrene D (6.3–33.7%), α-cadinene (7.0–16.1%), δ-cadinene (1.8–13.5%) and α-humulene (3.6–4.6%) were identified as the major constituents. The brine shrimp (Artemia salina Leach) lethality bioassay, carried out to investigate the toxicity of the essential oils, showed 50% lethal concentration (LC50) values of 11.24 and 11.85 μg/mL for samples from Teresina and Simões, respectively. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.692908 [article] Chemical composition of essential oils of Croton hirtus L’Her from Piauí (Brazil) [texte imprimé] / S.G. De Lima, Auteur ; L.B.P. Medeiros, Auteur ; C.N.L.C. Cunha, Auteur . - 2012 . - pp. 371-376. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 24 N° 4 (Août 2012) . - pp. 371-376 Mots-clés : Croton  hirtus  Euphorbiaceae  Essential  oil  composition  E-caryophyllene  Spathulenol  Germacrene  D  Chemical  variability  Toxicity Résumé : The essential oils from the fresh leaves of Croton hirtus from two locations, Teresina and Simões in Piauí State, located in northeastern Brazil were obtained by hydrodistillation and analyzed by gas chromatography–flame ionization detection (GC–FID) and gas chromatography–mass spectrometry (GC–MS) techniques and further confirmed by 1H and 13C NMR. The main compounds found in the oil of the leaves from C. hirtus collected at Simões were spathulenol (26.7%), E-caryophyllene (10.0%), bicyclogermacrene (9.5%), α-cadinol (7.7%) and cubenol (7.0%). At Teresina, the harvest was carried out in two different months and in three periods of the day, and E-caryophyllene (27.9–37.3%), germacrene D (6.3–33.7%), α-cadinene (7.0–16.1%), δ-cadinene (1.8–13.5%) and α-humulene (3.6–4.6%) were identified as the major constituents. The brine shrimp (Artemia salina Leach) lethality bioassay, carried out to investigate the toxicity of the essential oils, showed 50% lethal concentration (LC50) values of 11.24 and 11.85 μg/mL for samples from Teresina and Simões, respectively. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.692908

Chemical composition and insecticidal properties of Lantana camara L. leaf essential oils from Algeria / Safia Zoubiri 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. 377-383 Titre : Chemical composition and insecticidal properties of Lantana camara L. leaf essential oils from Algeria Type de document : texte imprimé Auteurs : Safia Zoubiri, Auteur ; Aoumeur Baaliouamer, Auteur Année de publication : 2012 Article en page(s) : pp. 377-383 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Lantana  camara  L  Essential  oil  Sitophilus  granarius  Fumigant  activity Résumé : Essential oils extracted from Lantana camara were tested for fumigant activity against Sitophilus granarius adults. Composition of L. camara essential oil included large amounts of sesquiterpene hydrocarbons, mainly β-caryophyllene. The bioactivity of the essential oil extracted by hydrodistillation from leaves of L. camara was assessed under laboratory conditions. With fumigation bioassays, essential oils showed different activities on S. granarius. April essential oil, after 24 hours of exposure, exerted the highest activity. Similar results were obtained for February and June essential oils after 48 hours of exposure, although December essential oil showed good fumigant activity after 96 hours of exposure. The persistence of the insecticidal efficiency of the essential oil (remanence tests) against S. granarius adults confirmed that June essential oil was efficient for 2 weeks. Even if laboratory bioassays are only the first step towards the use of essential oils in practical applications, these substances represent a possible alternative to chemical insecticides in some market places. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.692910 [article] Chemical composition and insecticidal properties of Lantana camara L. leaf essential oils from Algeria [texte imprimé] / Safia Zoubiri, Auteur ; Aoumeur Baaliouamer, Auteur . - 2012 . - pp. 377-383. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 24 N° 4 (Août 2012) . - pp. 377-383 Mots-clés : Lantana  camara  L  Essential  oil  Sitophilus  granarius  Fumigant  activity Résumé : Essential oils extracted from Lantana camara were tested for fumigant activity against Sitophilus granarius adults. Composition of L. camara essential oil included large amounts of sesquiterpene hydrocarbons, mainly β-caryophyllene. The bioactivity of the essential oil extracted by hydrodistillation from leaves of L. camara was assessed under laboratory conditions. With fumigation bioassays, essential oils showed different activities on S. granarius. April essential oil, after 24 hours of exposure, exerted the highest activity. Similar results were obtained for February and June essential oils after 48 hours of exposure, although December essential oil showed good fumigant activity after 96 hours of exposure. The persistence of the insecticidal efficiency of the essential oil (remanence tests) against S. granarius adults confirmed that June essential oil was efficient for 2 weeks. Even if laboratory bioassays are only the first step towards the use of essential oils in practical applications, these substances represent a possible alternative to chemical insecticides in some market places. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.692910

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

A review of volatile sulfur-containing compounds from terrestrial plants / M. Iranshahi 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. 393-434 Titre : A review of volatile sulfur-containing compounds from terrestrial plants : Biosynthesis, distribution and analytical methods Type de document : texte imprimé Auteurs : M. Iranshahi, Auteur Année de publication : 2012 Article en page(s) : pp. 393-434 Note générale : Génie Chimique Langues : Anglais (eng) Mots-clés : Sulfur-containing  compounds  Distribution  Plant  families  Isothiocyanate Résumé : This review includes 554 volatile sulfur-containing compounds (VSCs) that have been reported from 43 terrestrial plant families until and including 2010. This review deals with extraction and analytical methods for VSCs, distribution of VSCs among plants, biosynthesis and other important aspects of this class of natural products. It has been shown that some classes of VSCs, specifically those in certain plant families, may have chemotaxonomic significance. This review also presents the retention indices of VSCs in different types of gas chromatography columns, as reported to date. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.692918 [article] A review of volatile sulfur-containing compounds from terrestrial plants : Biosynthesis, distribution and analytical methods [texte imprimé] / M. Iranshahi, Auteur . - 2012 . - pp. 393-434. Génie Chimique Langues : Anglais (eng) in The journal of essential oil research > Vol. 24 N° 4 (Août 2012) . - pp. 393-434 Mots-clés : Sulfur-containing  compounds  Distribution  Plant  families  Isothiocyanate Résumé : This review includes 554 volatile sulfur-containing compounds (VSCs) that have been reported from 43 terrestrial plant families until and including 2010. This review deals with extraction and analytical methods for VSCs, distribution of VSCs among plants, biosynthesis and other important aspects of this class of natural products. It has been shown that some classes of VSCs, specifically those in certain plant families, may have chemotaxonomic significance. This review also presents the retention indices of VSCs in different types of gas chromatography columns, as reported to date. ISSN : 1041-2905 En ligne : http://www.tandfonline.com/doi/full/10.1080/10412905.2012.692918

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