9 research outputs found
Effects of dietary oleuropein supplementation on growth performance, serum lipid concentrations and lipid oxidation of Japanese quails
No full textEffects of thyme as a feed additive in broiler chickens on thymol in gut contents, blood plasma, liver and muscle
No full textChemical Characterization and DNA Tracking of Sardinian Botargo by Mugil cephalus from Different Geographical Origins
No full textExploring the antivirulent and sea food preservation efficacy of essential oil combined with DNase on Vibrio parahaemolyticus
No full textComposition and biological activity of essential oils from Labiatae against Nezara viridula (Hemiptera: Pentatomidae) soybean pest
No full textBACKGROUND: Plant essential oils have been recognised as an important natural source of insecticide. This study analysed the chemical constituents and bioactivity of essential oils that were isolated via hydrodistillation from Origanum vulgare L. (oregano) and Thymus vulgaris L. (thyme) against eggs, second instar and adults of Nezara viridula (L.). RESULTS: The major component of oregano was p-cymene, and, for thyme, thymol. The ovicidal activity was tested by topical application; the essential oil from thyme was more effective. The fumigant activity was evaluated in an enclosed chamber; the LC 50 values for oregano were 26.8 and 285.6 ÎĽg mL -1 for nymphs and adults respectively; for thyme they were 8.9 ÎĽg mL -1 for nymphs and 219.2 ÎĽg mL -1 for adults. To evaluate contact activity, a glass vial bioassay was used; the LC 50 values for oregano were 1.7 and 169.2 ÎĽg cm -2 for nymphs and adults respectively; for thyme they were 3.5 and 48.8 ÎĽg cm -2 respectively. The LT 50 analyses for contact and fumigant bioassays indicated that thyme was more toxic for nymphs and adults than oregano. Both oils produced repellency on nymphs and adults. CONCLUSION: These results showed that the essential oils from O. vulgare and T. vulgaris could be applicable to the management of N. viridula.Fil: Werdin Gonzalez, Jorge Omar. Universidad Nacional del Sur. Departamento de BiologĂa, BioquĂmica y Farmacia. Laboratorio de ZoologĂa de Invertebrados II; Argentina. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Conicet - BahĂa Blanca. Instituto de QuĂmica del Sur. Universidad Nacional del Sur. Departamento de QuĂmica. Instituto de QuĂmica del Sur; ArgentinaFil: GutiĂ©rrez, MarĂa M.. Universidad Nacional del Sur. Departamento de BiologĂa, BioquĂmica y Farmacia. Laboratorio de ZoologĂa de Invertebrados II; ArgentinaFil: Murray, Ana Paula. Universidad Nacional del Sur. Departamento de QuĂmica. Instituto de Investigaciones en QuĂmica Orgánica; Argentina. Consejo Nacional de Investigaciones CientĂficas y TĂ©cnicas. Centro CientĂfico TecnolĂłgico Conicet - BahĂa Blanca. Instituto de QuĂmica del Sur. Universidad Nacional del Sur. Departamento de QuĂmica. Instituto de QuĂmica del Sur; ArgentinaFil: Ferrero, Adriana Alicia. Universidad Nacional del Sur. Departamento de BiologĂa, BioquĂmica y Farmacia. Laboratorio de ZoologĂa de Invertebrados II; Argentin
Determination of Furaltadone and Nifursol Residues in Poultry Eggs by Liquid Chromatography–Electrospray Ionization Tandem Mass Spectrometry
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