Search results for "officina"
showing 10 items of 91 documents
Effects of essential oils and selected compounds from Lamiaceae family as adjutants on the treatment of subjects with periodontitis and cardiovascula…
2021
Essential oils from different plant species were found to contain different compounds exhibiting anti-inflammatory effects with the potential to be a valid alternative to conventional chemotherapy that is limited in long-term use due to its serious side effects. Generally, the first mechanism by which an organism counteracts injurious stimuli is inflammation, which is considered a part of the innate immune system. Periodontitis is an infectious and inflammatory disease caused by a dysbiosis in the subgingival microbiome that triggers an exacerbated immune response of the host. The immune–inflammatory component leads to the destruction of gingival and alveolar bone tissue. The main anti-infl…
Effect of bioclimatic area on the composition and bioactivity of Tunisian Rosmarinus officinalis essential oils
2014
The chemical composition of eight Tunisian Rosmarinus officinalis L. populations (A-H) from different bioclimatic areas has been examined by gas chromatography (GC) and GC-mass spectrometry. The essential oils are characterised by high amounts of oxygenated monoterpenes (58.2-71.7%) followed by monoterpene hydrocabons (15.1-26.7%). 1,8-Cineole, camphor, α-pinene and borneol are the main representative components. The antioxidant activity was investigated by 2,2-diphenyl-1-picrylhydrazyl radical (DPPH), ferric reducing ability power assay and β-carotene bleaching test. Samples showed antiradical activity by inhibiting DPPH radical with IC50 values ranging from 375.3 to 592.8 μg mL(- 1) for s…
La gestion des betteraves adventices résistantes à un herbicide: une approche par simulation
2007
National audience; Les variétés de betteraves sucrières génétiquement modifiées (GM) résistantes à un herbicide sont, a priori, intéressantes dans des champs fortement infestés par la betterave adventice. Cependant, la montée à fleurs de ces betteraves GM peut entraîner l’apparition d’individus résistants, via la dispersion de pollen. Nous avons développé et utilisé le modèle GENESYS-Betterave pour simuler, à l’échelle d’une petite région agricole, l’impact des pratiques culturales sur la dispersion du transgène. Il permet d'identifier des stratégies pour contrôler les adventices et limiter l'apparition de populations résistantes en zone de production de betterave sucrière. L’utilisation de…
Analyse spatiale et fonctionnelle de la diversité d'un système symbiotique en milieu insulaire et continental : cas du Pterocarpus officinalis Jack. …
2003
National audience
Biological control of Fusarium culmorum isolated from the cultivation of white asparagus by Pseudomonas fluorescens
2017
Celem badań była ocena wpływu Pseudomonas fluorescens I-4 (Ps I-4) na Fusarium culmorum wyizolowanego z uprawy białego szparaga. Fusarium culmorum i pozostałe grzyby izolowano na podłożach PDA i szparagowym. Wśród izolatów uzyskanych z gleby najbardziej dominującymi patogenami były F. oxysporum i F. culmorum. Właściwości biologiczne nielotnych i lotnych związków Ps I-4 oceniano metodą hodowlano-płytkową na podłożach PDA i Czapka. Aktywność przeciwgrzybową określano na podstawie indeksu tempa wzrostu, zdolności kiełkowania zarodników, stopnia zahamowania wzrostu grzybni i zarodników. Wyniki wykazały różnice w aktywności przeciwgrzybowej P. fluorescens, w zależności od wieku i gęstości hodowl…
Studies concerning the production of volatile oil, rhizomes and roots, to different genotypes of Valeriana officinalis L.
2010
Valeriana officinalis L. is considered to pertain to European species, with great ecologic plasticity, which allows its adaptation to climate conditions characteristics to plain areas and also to mountain areas up to an altitude of 2400 meters. The species is a well-known curative plant, with a long history and multiple uses. Essential oils deriving from this species revealed the interest of researchers in food industry, cosmetics and officinal industry, furthermore being used as additives too.The raw material from which essential oils are being extracted is represented mainly by rhizomes and roots. This study has the purpose to emphasize the differences of essential oils production registe…
I vantaggi della subirrigazione per produrre più turioni
2008
Effects of Rosmarinus officinalis and Salvia officinalis essential oils on Tetranychus urticae Koch (Acari: Tetranychidae)
2013
Laboratory trials were carried out to characterize Rosmarinus officinal and Salvia officinalis essential oils and to evaluate their pesticidal activities against Tetranychus urticae. Slide-dip and leaf-disk bioassays were employed to study the mortality caused by these plant oils on two-spotted spiders. Different dilutions of both essential oils (0.10-0.25%, v/v) caused acute contact toxicity, although the sage extract showed greater acaricidal activity than rosemary oil. Mortality rates of 95-100% were observed at all the sage oil dosages and when rosemary emulsions contained at least 0.20% of essential oil. In the residual contact experiments (leaf-disk assays), 0.15-0.25% of sage oil or …
Phytochemical Investigation of the Labiate Dorystoechas hastata
1988
Abstract Carnosol (11,12-dihydroxyabieta-8,11,13-trien-20-oic acid 20,7-lactone), and rosmanol (7α, 11, 12-trihydroxy-abieta-8, 11, 13-trien-20 oic acid-20, 6-lactone), two abietane diterpenes previously isolated from Rosmarinus officinalis, have been isolated from leaves of Dorystoechas hastata. Luteolin, luteolin-7-glucoside, 6-methoxyluteolin-7-glucoside, caffeic acid and chlorogenic acid have also obtained from the same source. The co-occurrence of carnosol, rosmanol and 6-methoxyluteolin-7-glucoside support the close relationship of these two genera.