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Joseph Casanova - One of the best experts on this subject based on the ideXlab platform.

  • Integrated Analysis of the Wood Oil from Xanthocyparis vietnamensis Farjon & Hiep. by Chromatographic and Spectroscopic Techniques
    MDPI AG, 2016
    Co-Authors: Ophélie Bazzali, Tran Huy Thai, Tran Minh Hoi, Nguyen Sinh Khang, Nguyen Thi Hien, Joseph Casanova, Ange Bighelli, Félix Tomi
    Abstract:

    In order to get better knowledge about the volatiles produced by Xanthocyparis vietnamensis, a species recently discovered in Vietnam, its wood oil has been analyzed by a combination of chromatographic (GC, CC) and spectroscopic (GC-MS, 13C-NMR) techniques. Forty components that accounted for 87.9% of the oil composition have been identified. The composition is dominated by nootkatene (20.7%), 11,12,13-tri-nor-eremophil-1(10)-en-7-one (17.2%), γ-eudesmol (5.1%), nootkatone (4.7%), valencene (3.5%) and 13-nor-eremophil-1(10)-en-11-one (2.6%). The structure of two new compounds—10-epi-nor-γ-eudesmen-11-one and 12-hydroxy-isodihydroagarofuran—has been elucidated, while 11,12,13-tri-nor-eremophil-1(10)-en-7-ol is reported as a natural product for the first time. The composition of X. vietnamensis wood oil varied drastically from those of Leaf Oils, dominated by hedycaryol (34.4%), phyllocladene (37.8%) or by pimara-6(14)-15-diene (19.4%)

  • chemical variability of the Leaf oil of 113 hybrids from citrus clementina commun citrus deliciosa willow Leaf
    Flavour and Fragrance Journal, 2008
    Co-Authors: Félix Tomi, Joseph Casanova, Marina Barzalona, François Luro
    Abstract:

    Essential Oils of 113 Citrus clementina (Commun) × Citrus deliciosa (Willow Leaf) hybrids were obtained from leaves collected on trees located in the same orchard. Their chemical composition was investigated by capillary GC, GC–MS and 13C-NMR and the results were submitted to statistical analysis. Three chemical compositions were characterized. The crossing between clementine and mandarin produces mainly Leaf Oils characterized by a composition similar to those of the parents (sabinene/linalool or methyl N-methylanthranylate). However, several samples exhibited an original composition (γ-terpinene/linalool). Copyright © 2008 John Wiley & Sons, Ltd.

  • composition of Leaf fruit and gall essential Oils of algerian pistacia atlantica desf
    Journal of Essential Oil Research, 2008
    Co-Authors: Samira Mecheraraidjeri, Aicha Hassani, Vincent Castola, Joseph Casanova
    Abstract:

    Abstract Pistacia atlantica Desf. is widely distributed in South Algeria. It is a medicinal and foodstuff plant. Decoctions of leaves and fruits are used against stomach ache and caught. Ripe fruits are components of tonic sweets. Essential Oils from leaves, fruits and galls of P. atlantica, analyzed by GC/FID, GC/MS and 13C-NMR, were dominated by monoter-pene hydrocarbons, α-pinene (32.6–54.7%) and β-pinene (8.0–20.2%) being the major components. Sesquiterpenes accounted for 14.1–21.7% in Leaf Oils, 3.6% in fruit oil and 4.8% in gall oil.

  • composition and chemical variability of the essential oil from pistacia lentiscus l growing wild in algeria part i Leaf oil
    Journal of Essential Oil Research, 2008
    Co-Authors: Samira Mecheraraidjeri, Aicha Hassani, Vincent Castola, Joseph Casanova
    Abstract:

    Abstract The chemical composition of 17 samples of Leaf oil from Pistacia lentiscus L. growing wild in Algeria was investigated by GC/FID (retention indices), GC/MS and 13C-NMR. Leaf Oils were dominated by monoterpene hydrocarbons. α-Pinene (20.0–34.2%), myrcene (23.0–33.1%) or limonene (25.5–43.8%) were the major components. Statistical analysis of our results confirmed the chemical variability of the Leaf oil of P. lentiscus and showed an atypical composition characterized by the pre-eminence of sesquiterpene hydrocarbons.

  • chemical variability of peel and Leaf Oils of mandarins
    Flavour and Fragrance Journal, 2006
    Co-Authors: Anne Laure Fanciullino, François Luro, Félix Tomi, Jean Marie Desjobert, Joseph Casanova
    Abstract:

    Peel and Leaf Oils of 35 mandarin cultivars, belonging to five different species, were obtained from fruits and leaves collected on mandarin-trees kept at the same pedoclimatic and cultural conditions. Their chemical composition was investigated by capillary GC, GC–MS and 13C-NMR and the results were submitted to a statistical analysis. Two major chemotypes, limonene and limonene/γ-terpinene, were distinguished for peel Oils, while five chemotypes, linalool, sabinene/linalool, β-pinene/linalool, γ-terpinene and methyl N-methylanthranilate, were observed for Leaf Oils. The results were compared with those already reported by our groups. Copyright © 2005 John Wiley & Sons, Ltd.

José Guilherme S. Maia - One of the best experts on this subject based on the ideXlab platform.

  • chemical composition and biological activities of two chemotype Oils from cinnamomum verum j presl growing in north brazil
    Journal of Food Science and Technology-mysore, 2020
    Co-Authors: Ana Patrícia P. Farias, Pablo Luis B. Figueiredo, Antonia Alice C. Rodrigues, Ildenice N. Monteiro, Odair Dos Santos Monteiro, José Guilherme S. Maia, Joyce Kelly R. Da Silva
    Abstract:

    Chemical composition and antioxidant and antifungal action of the Oils from leaves and wood bark of two chemotypes of Cinnamomum verum J. Presl were evaluated. Plants were sampled in the cities of Sao Luis and Santa Ines, state of Maranhao, Brazil. GC–MS and GC-FID, DPPH radical scavenging, and in vitro test against the phytopathogenic fungus Colletotrichum musae were used to perform these analyses. Cinnamomum verum is worldwide known as Cinnamon, highlighted for its extensive use in the cooking of diverse cultures of the world, and as a medicinal plant to treat environmental viral diseases. In the Leaf oil of Sao Luis chemotype, eugenol (93.6%) was the main constituent, while in Santa Ines chemotype, it was benzyl benzoate (95.3%). In the bark wood oil of Sao Luis chemotype, (E)-cinnamaldehyde (89.3%) was the main constituent, while in Santa Ines chemotype, they were benzyl benzoate (23.3%), linalool (14.0%), (E)-caryophyllene (9.1%), caryolan-8-ol (7.2%) and borneol (4.7%). Leaf Oils from both chemotypes showed strong to moderate antifungal activity, reaching 100% efficacy in eugenol-containing Oils and above 70% in benzyl benzoate Oils. In the antioxidant evaluation, the chemotype with a high eugenol content presented an inhibitory concentration higher than 80%, compared to Trolox. The Leaf Oils of the two C. verum chemotypes showed significant antifungal and antioxidant potential, considering their economic use as a functional and nutraceutical food supplement.

Félix Tomi - One of the best experts on this subject based on the ideXlab platform.

  • Integrated Analysis of the Wood Oil from Xanthocyparis vietnamensis Farjon & Hiep. by Chromatographic and Spectroscopic Techniques
    MDPI AG, 2016
    Co-Authors: Ophélie Bazzali, Tran Huy Thai, Tran Minh Hoi, Nguyen Sinh Khang, Nguyen Thi Hien, Joseph Casanova, Ange Bighelli, Félix Tomi
    Abstract:

    In order to get better knowledge about the volatiles produced by Xanthocyparis vietnamensis, a species recently discovered in Vietnam, its wood oil has been analyzed by a combination of chromatographic (GC, CC) and spectroscopic (GC-MS, 13C-NMR) techniques. Forty components that accounted for 87.9% of the oil composition have been identified. The composition is dominated by nootkatene (20.7%), 11,12,13-tri-nor-eremophil-1(10)-en-7-one (17.2%), γ-eudesmol (5.1%), nootkatone (4.7%), valencene (3.5%) and 13-nor-eremophil-1(10)-en-11-one (2.6%). The structure of two new compounds—10-epi-nor-γ-eudesmen-11-one and 12-hydroxy-isodihydroagarofuran—has been elucidated, while 11,12,13-tri-nor-eremophil-1(10)-en-7-ol is reported as a natural product for the first time. The composition of X. vietnamensis wood oil varied drastically from those of Leaf Oils, dominated by hedycaryol (34.4%), phyllocladene (37.8%) or by pimara-6(14)-15-diene (19.4%)

  • chemical variability of the Leaf oil of 113 hybrids from citrus clementina commun citrus deliciosa willow Leaf
    Flavour and Fragrance Journal, 2008
    Co-Authors: Félix Tomi, Joseph Casanova, Marina Barzalona, François Luro
    Abstract:

    Essential Oils of 113 Citrus clementina (Commun) × Citrus deliciosa (Willow Leaf) hybrids were obtained from leaves collected on trees located in the same orchard. Their chemical composition was investigated by capillary GC, GC–MS and 13C-NMR and the results were submitted to statistical analysis. Three chemical compositions were characterized. The crossing between clementine and mandarin produces mainly Leaf Oils characterized by a composition similar to those of the parents (sabinene/linalool or methyl N-methylanthranylate). However, several samples exhibited an original composition (γ-terpinene/linalool). Copyright © 2008 John Wiley & Sons, Ltd.

  • chemical variability of peel and Leaf Oils of mandarins
    Flavour and Fragrance Journal, 2006
    Co-Authors: Anne Laure Fanciullino, François Luro, Félix Tomi, Jean Marie Desjobert, Joseph Casanova
    Abstract:

    Peel and Leaf Oils of 35 mandarin cultivars, belonging to five different species, were obtained from fruits and leaves collected on mandarin-trees kept at the same pedoclimatic and cultural conditions. Their chemical composition was investigated by capillary GC, GC–MS and 13C-NMR and the results were submitted to a statistical analysis. Two major chemotypes, limonene and limonene/γ-terpinene, were distinguished for peel Oils, while five chemotypes, linalool, sabinene/linalool, β-pinene/linalool, γ-terpinene and methyl N-methylanthranilate, were observed for Leaf Oils. The results were compared with those already reported by our groups. Copyright © 2005 John Wiley & Sons, Ltd.

  • Chemical variability of peel and Leaf essential Oils of sour orange
    Flavour and Fragrance Journal, 2001
    Co-Authors: Marie-laure Lota, Félix Tomi, Dominique De Rocca Serra, Camille Jacquemond, Joseph Casanova
    Abstract:

    Peel and Leaf Oils of 30 sour orange cultivars, belonging to four different species (C. aurantium L., C. myrtifolia Raf., C. natsudaidai Hay. and C. neo-aurantium Tan.) were obtained from fruits and leaves collected on sour orange trees submitted to the same pedoclimatic and horticultural conditions. Their chemical composition was investigated by capillary GC, GC–MS and 13C-NMR. Two chemotypes, limonene and limonene/β-pinene, were distinguished for peel Oils, while four chemotypes, linalool/linalyl acetate, sabinene/(E)-β-ocimene, limonene/β-pinene and β-pinene/linalool, were observed for Leaf Oils. Copyright © 2001 John Wiley & Sons, Ltd.

  • chemical variability of peel and Leaf essential Oils of 15 species of mandarins
    Biochemical Systematics and Ecology, 2001
    Co-Authors: Marie-laure Lota, Félix Tomi, Dominique De Rocca Serra, Joseph Casanova
    Abstract:

    Peel and Leaf Oils of 58 mandarin cultivars, belonging to 15 different species were obtained from fruits and leaves collected on mandarin-trees submitted to the same pedoclimatic and cultural conditions. Their chemical composition was investigated by capillary GC, GC/MS and 13C NMR and the results were submitted to a cluster analysis and a discriminant analysis. Three major chemotypes, limonene, limonene/gamma-terpinene and linalyl acetate/limonene, were distinguished for peel Oils while three other chemotypes, sabinene/linalool, gamma-terpinene/linalool and methyl N-methylanthranilate, were observed for Leaf Oils.

Jagan Mohan L Rao - One of the best experts on this subject based on the ideXlab platform.

  • chemistry biogenesis and biological activities of cinnamomum zeylanicum
    Critical Reviews in Food Science and Nutrition, 2011
    Co-Authors: G K Jayaprakasha, Jagan Mohan L Rao
    Abstract:

    The genus Cinnamomum comprises of several hundreds of species, which are distributed in Asia and Australia. Cinnamomum zeylanicum, the source of cinnamon bark and Leaf Oils, is an indigenous tree of Sri Lanka, although most oil now comes from cultivated areas. C. zeylanicum is an important spice and aromatic crop having wide applications in flavoring, perfumery, beverages, and medicines. Volatile Oils from different parts of cinnamon such as leaves, bark, fruits, root bark, flowers, and buds have been isolated by hydro distillation/steam distillation and supercritical fluid extraction. The chemical compositions of the volatile Oils have been identified by GC and GC-MS. More than 80 compounds were identified from different parts of cinnamon. The Leaf oil has a major component called eugenol. Cinnamaldehyde and camphor have been reported to be the major components of volatile Oils from stem bark and root bark, respectively. Trans-cinnamyl acetate was found to be the major compound in fruits, flowers, and fr...

Hideaki Ichiura - One of the best experts on this subject based on the ideXlab platform.

  • Chemical Composition and Antifungal Property of Eucalyptus camaldulensis Leaf Oils from Thailand
    ACG Publications, 2013
    Co-Authors: Pornpun Siramon, Yoshito Ohtani, Hideaki Ichiura
    Abstract:

    The present study was performed to evaluate antifungal activities of Leaf essential Oils from Eucalyptus camaldulensis Dehnh. originating from Thailand against 9 fungal strains. The Leaf samples were collected from 3 different clones. The fungi examined in this study were (1) household molds: Aspergillus niger , Cladosporium cladosporioides, Chaetomium globosum and Penicillium citrinum, (2) wood rot fungi: Fomitopsis palustris and Trametes versicolor, (3) plant pathogenic fungi: Fusarium oxysporum, Thanatephorus cucumeris and Rhizopus oryzae. The results revealed that E. camaldulensis Leaf Oils provided 100% inhibition of the mycelial growth of T. cucumeris (5 mg/m L ), and C. globosum (10 mg/m L ). No inhibition effect was observed against R. oryzae even at the concentration of 10 mg/m L . A medium to low inhibitory activities against the mycelial growth of the six other fungi were found. The essential Oils of E. camaldulensis Leaf have potency as an antimicrobial agent especially against seedling blight pathogens and it could also act as moderate agents against household molds and wood rot fungi. Therefore, even if they need relatively higher concentration for the controlling agents, they deserve as the alternatives to hazardous synthetic fungicides from the ecological viewpoints

  • Chemical Compositions, Antioxidant and Antifungal Activities of Melaleuca leucadendron Linn. Leaf Oils from Indonesia
    Indonesian Wood Research Society, 2012
    Co-Authors: -, Rini Pujiarti, Yoshito Ohtani, Hideaki Ichiura
    Abstract:

    Melaleuca leucadendron Linn. Oil, also known as Kayu Putih oil, is one of the most important non-timber forest products in Indonesia. This oil has diverse bioactivity, such as insecticidal, antifungal, antibacterial, and antiviral. This study elucidated the chemical compositions and biological activities of M. leucadendron Leaf Oils from Java, Indonesia in order to evaluate their potency and improve their utilization. Leaf samples of M. leucadendron in this study were collected from plantation forest in Gunung Kidul-Yogyakarta (L1), Gundih-Central Java (L2) and Sukun-East Java (L3), Indonesia in different plant ages of 5 (A1), 10 (A2) and 15 (A3) years-old. Oil samples were distillated by water-steam distillation. Identification of chemical composition of these essential Oils was conducted by GC-MS analysis. The in vitro antioxidant activity was examined by 1,1-diphenyl-2-picrylhydrazyl (DPPH) method and antifungal activity was examined using a method by Wang et al. (2005) with slight modification against pathogenic fungi of Fusarium oxysporum, Thanatephorus cucumeris and Rhizopus oryzae. GC-MS investigations of M. leucadendron Leaf Oils showed 26 compounds have been identified. The result showed 1,8-cineole (44.76% to 60.19%) was the major compound in these oil, followed by α-terpineol (5.93% to 12.45%), D(+)-limonene (4.45% to 8.85%), and β-caryophyllene (3.78% to 7.64%), respectively. The in vitro DPPH assay showed anti-oxidative (IC50: 7.21 to 9.46 mg/ml) properties of M. leucadendron Leaf Oils. This essential Oils also revealed inhibitory effect against F. oxysporum (IC50: 0.01 mg/ml to 0.11 mg/ml), T. cucumeris (IC50: 0.52 mg/ml to 4.20 mg/ml) and R. oryzae (IC50:1.35 mg/ml to 7.61 mg/ml). The antifungal activity showed M. leucadendron Leaf Oils were effective against fungi of F. oxysporum and T. cucumeris; but it showed less antifungal activity against R. oryzae. This study indicated that the M. leucadendron Leaf Oils can be used as antioxidant and sustainable eco-friendly bio fungicides

  • physicochemical properties and chemical compositions of melaleuca leucadendron Leaf Oils taken from the plantations in java indonesia
    Journal of Wood Science, 2011
    Co-Authors: -, Rini Pujiarti, Yoshito Ohtani, Hideaki Ichiura
    Abstract:

    Melaleuca leucadendron Linn. Leaf Oils from Gunung Kidul, Gundih and Sukun, Java, Indonesia, at tree ages of 5, 10, and 15 years were analyzed to elucidate their qualities and chemical compositions. These Oils gave yields from 0.61% to 1.59%. The samples from Gundih produced the highest yields (1.42–1.59%) compared to those from Gunung Kidul and Sukun. These Oils were colorless with an odor typical of Melaleuca Oils. The specific gravity of essential Oils in this study ranged from 0.870 to 0.912. The samples from Gunung Kidul were the highest in specific gravity (0.905–0.912). The refractive index values of oil samples ranged from 1.468 to 1.470, optical rotation ranged from (−)2.47° to (−)0.98°, and ratio miscibility of Oils in 70% ethanol ranged from 1:1 to 1:9.67. The organoleptic profiles and physicochemical properties of M. leucadendron Linn. Leaf Oils in this study were evaluated based on the Indonesian National Standard (SNI) 06-3954-2006 for standard quality of Melaleuca essential Oils; only a few specific gravity values were below the standard. GC-MS spectrometry analysis indicated the presence of 26 compounds. Among them, 1,8-cineole (44.76–60.19%), α-terpineol (5.93–12.45%), d(+)-limonene (4.45–8.85%), and β-caryophyllene (3.78–7.64%) were the major components. Samples from each site tended to decrease in 1,8-cineole content and increase in β-caryophyllene content as plant age increased. α-Terpineol was highest at plant age 10 years, and d(+)-limonene varied according to plant site and age.

  • biological performance of eucalyptus camaldulensis Leaf Oils from thailand against the subterranean termite coptotermes formosanus shiraki
    Journal of Wood Science, 2009
    Co-Authors: Pornpun Siramon, Yoshito Ohtani, Hideaki Ichiura
    Abstract:

    The antitermitic activities of Leaf Oils and their constituents, taken from three clones of Eucalyptus camaldulensis Dehnh. in Thailand, against Coptotermes formosanus Shiraki were investigated in contact and noncontact tests. The termiticidal mechanism was also examined. Antitermitic tests demonstrated that E. camaldulensis Leaf Oils were both contact toxicants and fumigants to C. formosanus with LC50 values ranging between 12.68 and 17.50 mg/g by the contact method, and between 12.65 and 17.50 mg/petri dish (100 cm3) by the noncontact method. p-Cymene and γ-terpinene were primarily responsible for the contact toxicity and 1,8-cineole was responsible for fumigation. From the investigation of termiticidal mechanism, E. camaldulensis Leaf Oils exhibited the inhibition of acetylcholinesterase activity and showed the common symptoms of a neurotoxic mode of action against C. formosanus.