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See detailESSENTIAL OIL COMPOSITION AND ANTIMICROBIAL ACTIVITY OF ARTEMISIA HERBA-ALBA ASSO GROWN IN MOROCCO
Imelouane, B.; El Bachiri, A.; Ankit, M. et al

in Banat's Journal of Biotechnology (2011), I(2),

Volatile components of Artemisia herba-alba Asso essential oil obtained by hydrodistillation growing in eastern Morocco (Taforalt) were investigated by GC/FID and GC-MS. The major components were found to ... [more ▼]

Volatile components of Artemisia herba-alba Asso essential oil obtained by hydrodistillation growing in eastern Morocco (Taforalt) were investigated by GC/FID and GC-MS. The major components were found to be camphor (43.07%), camphene (7.2%), 1,8-cineole (7.08%), filifolone (7.04%), borneol (4.88%), and bornyl acetate (3,79%).The essential oil has been tested for antimicrobial activity against Gram-negative and Gram-positive bacteria. Inhibition of growth was tested by the agar diffusion method. The minimal Inhibitory Concentration (MIC) was determined by the method of microtitration assay. [less ▲]

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See detailEssential Oil Composition of Ocimum basilicum L. and Ocimum gratissimum L. from Algeria
Brada, M.; Khelifa, L. H.; Achour, D. et al

in Journal of Essential Oil-Bearing Plants [=JEOBP] (2011), 14(6), 810-814

The constituents of essential oils isolated by hydrodistillation of the overground parts of Ocimum basilicum L. and Ocimum gratissimum L. from Algeria were examined by GC and GC-MS. A total of 46 and 43 ... [more ▼]

The constituents of essential oils isolated by hydrodistillation of the overground parts of Ocimum basilicum L. and Ocimum gratissimum L. from Algeria were examined by GC and GC-MS. A total of 46 and 43 components were identified accounting for 99.4 % and 97.7 % of O. basilicum and O. gratissimum oils, respectively. The oil of O. basilicum contained, as main components, linalool (44.7 %), linalyl acetate (14.0 %), 1,8-cineole (6.7 %), myrcene (5.6 %), α-terpineol (5.1 %), geranyl acetate (4.0 %), alloocimene (2.4 %), neryl acetate (2.4 %), elemol (2.1 %) and β-caryophyllene (1.3 %). Major compounds in the essential oil of O. gratissimum were eugenol (54.8 %), β-elemene (10.9 %), 1,8 cineole (4.1 %), α-humulene (3.8 %) linalool (2.1 %) and α-amorphene (2.1 %). [less ▲]

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See detailEssential oil production by Anthemis nobilis L. tissue culture.
Fauconnier, Marie-Laure ULg; Jaziri, M.; Marlier, Michel et al

in Journal of Plant Physiology (1993), 141(6), 759-761

The production of essential oil by tissue culture s ol Antbemis nobilis L. including cell suspension, shoot and crown-gall cultures is reported. The biosynthetic capability of these different cultures was ... [more ▼]

The production of essential oil by tissue culture s ol Antbemis nobilis L. including cell suspension, shoot and crown-gall cultures is reported. The biosynthetic capability of these different cultures was compared with that of plants grown in a field. The addition of crude polysaccharide fraction prepared from yeast extract and from the plant itself to shoot cultures affected the composition and total essential content (from 0.08 o/o to 0.3Qo/o dry weight). The essential oil content of the crown-gall tissue ol A. nobilis was 0.25 % of the dry weight and the composition of the essential oil was comparable to that of the flowers. [less ▲]

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See detailThe Essential Oils of Origanum majorana L. and Origanum floribundum Munby in Algeria
Brada, Moussa; Saadi, Abdelkader; Wathelet, Jean-Paul ULg et al

in Journal of Essential Oil-Bearing Plants [=JEOBP] (2012), 15(3), 497-502

The constituents of essential oils isolated by hydrodistillation of the overground parts of Origanum majorana and Origanum floribundum from Algeria were examined by GC and GC-MS. A total of thirty eight ... [more ▼]

The constituents of essential oils isolated by hydrodistillation of the overground parts of Origanum majorana and Origanum floribundum from Algeria were examined by GC and GC-MS. A total of thirty eight and thirty seven components were identified accounting for 93.3 % and 88.9 %, respectively, of the oils of O. majorana and O. floribundum. The oil of O. majorana (yield: 1.2 %) contained, as main components, β-caryophyllene (26.0 %), α-terpinolene (14.7 %), γ-terpinene (10.9 %) and sabinene (9.5 %). Major compounds in the volatile oil of O. floribundum (yield: 1.6 %) were γ-terpinene (34.1 %), p-cymene(27.6 %) and carvacrol (9.6 %). [less ▲]

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See detailAn essential role for gamma-herpesvirus latency-associated nuclear antigen homolog in an acute lymphoproliferative disease of cattle.
Palmeira, Leonor; Sorel, Océane ULg; Van Campe, Willem et al

in Proceedings of the National Academy of Sciences of the United States of America (2013)

Wildebeests carry asymptomatically alcelaphine herpesvirus 1 (AlHV-1), a gamma-herpesvirus inducing malignant catarrhal fever (MCF) to several ruminant species (including cattle). This acute and lethal ... [more ▼]

Wildebeests carry asymptomatically alcelaphine herpesvirus 1 (AlHV-1), a gamma-herpesvirus inducing malignant catarrhal fever (MCF) to several ruminant species (including cattle). This acute and lethal lymphoproliferative disease occurs after a prolonged asymptomatic incubation period after transmission. Our recent findings with the rabbit model indicated that AlHV-1 infection is not productive during MCF. Here, we investigated whether latency establishment could explain this apparent absence of productive infection and sought to determine its role in MCF pathogenesis. First, whole-genome cellular and viral gene expression analyses were performed in lymph nodes of MCF-developing calves. Whereas a severe disruption in cellular genes was observed, only 10% of the entire AlHV-1 genome was expressed, contrasting with the 45% observed during productive infection in vitro. In vivo, the expressed viral genes included the latency-associated nuclear antigen homolog ORF73 but none of the regions known to be essential for productive infection. Next, genomic conformation analyses revealed that AlHV-1 was essentially episomal, further suggesting that MCF might be the consequence of a latent infection rather than abortive lytic infection. This hypothesis was further supported by the high frequencies of infected CD8+ T cells during MCF using immunodetection of ORF73 protein and single-cell RT-PCR approaches. Finally, the role of latency-associated ORF73 was addressed. A lack of ORF73 did not impair initial virus replication in vivo, but it rendered AlHV-1 unable to induce MCF and persist in vivo and conferred protection against a lethal challenge with a WT virus. Together, these findings suggest that a latent infection is essential for MCF induction. [less ▲]

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See detailEssential role of sirtuins in the pathogenesis of allergic airway inflammation
Legutko, Agnieszka ULg; Marichal, Thomas ULg; Fievez, Laurence ULg et al

in Short book of the Annual Congress of the European Respiratory Society (ERS), Vienne (2009)

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See detailL'essor de l'industrie belge du zinc (1800-1880)
Peters, Arnaud ULg

in Parcs & Réserves (2011), 66(3), 4-11

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See detailL'essor de l'industrie belge du zinc et la prise en compte de l'environnement
Peters, Arnaud ULg

in Parmentier, Isabelle (Ed.) La recherche en histoire de l'environnement : Belgique, Luxembourg, Congo, Rwanda, Burundi, Actes PREBel, Namur, décembre 2008 (2010)

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See detailL'essor des métiers du conseil : dynamiques et tensions
Divay, Sophie; Orianne, Jean-François ULg

in SociologieS (2010)

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See detailEst-ce ainsi que les jeunes Belges lisent? Résultat d'une enquête internationale
Lafontaine, Dominique ULg; Lafontaine, Annette ULg

in Enjeux : Revue de Formation Continuée et de Didactique du Français (1994), 31(7), 31

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See detailEst-ce du racisme ?
Martiniello, Marco ULg

Conference given outside the academic context (2013)

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See detailEst-ce qu'il est possible d'obtenir le résultat véritable d'un élève même si celui-ci tente de tricher ?
Raîche, Gilles; Blais, Jean-Guy; Magis, David ULg

Conference (2007, October)

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See detailEst-ce que vous chantez juste?
Larrouy, Pauline ULg

Diverse speeche and writing (2013)

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See detailEst-ce si difficile d'apprendre une langue étrangère est ?!?
Defays, Jean-Marc ULg

Conference given outside the academic context (2001)

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See detailEst-il déraisonnable de ne pas accorder une pension de survie au compagnon du travailleur décédé ?
Michiels, Olivier ULg; Joskin, Véronique

in Revue Trimestrielle de Droit Familial (2002), (1), 161-166

L'article envisage la question de savoir si le compagnon qui formait un ménage avec un travailleur décédé est en droit de pouvoir revendiquer une pension de survie.

Detailed reference viewed: 62 (10 ULg)