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Phenological stage effect on phenolic composition and repellent potential of Mentha pulegium against Tribolium castaneum and Lasioderma serricorne

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Asian Pacific Journal of Tropical Biomedicine 2018年第4期8卷 207-216页

作者： Nidhal Salem Jazia Sriti Olfa Bachrouch Kamel Msaada Saber Khammassi Majdi Hammami Saoussen Selmi emna boushih Marwa Ouertani Nesrine Hachani Manef Abderraba Brahim Marzouk Ferid Limam Jouda Mediouni Ben Jemaa Laboratoire des Substances Bioactives Centre de Biotechnologie a la Technopole de Borj Cedria Laboratoire de Protection des Vegetaux Institut National de la Recherche Agronomique de Tunisie (INRAT) Institut Superieur des Sciences Biologiques Appliquees de Tunisia Laboratoire de Biotechnologie Appliquee a l'Agriculture Institut National de la Recherche Agronomique de Tunisie (INRAT)

Objective:To elucidate for the first time the phenological stage effect on polyphenol,flavonoid and proanthocyanidin contents of pennyroyal(Mentha pulegium)as well as their antioxidant capacities and insecticidal potentials against Tribolium castaneum and Lasioderma ***:Crude methanol extracts from pennyroyal(Mentha pulegium)aerial parts were evaluated for their anti radical,reducing power activities and repellent potentials against selected coleopteran insects during different phenological ***:Phenolic contents of pennyroyal aerial parts and their antioxidant effects were significantly dependent on maturity stage of the *** maximum of phenol production was reached during the full flowering *** was the major phenol in Mentha pulegium with an amount of6.01 mg/g of dry vegetable matter during this ***,at fructification stage,the highest antioxidant activity was not related to high phenolic *** repulsive effect of pennyroyal extract showed that Lasioderma serricorne was more susceptible to pennyroyal extract than Tribolium castarneum with corresponding median repellent dose values of 0.124and 0.006 mg/mL ***,great differences in insect repulsion depending on extract concentrations,exposure time and developmental stage was *** the lowest concentration(0.125 mg/mL),the repellent effect against Tribolium reached its maximum(90%)during the fructification stage(after 24 h of exposure)while this repellent effect was 80%during the vegetative ***:Due to the strong insecticidal potential of pennyroyal extracts,this study highlights the therapeutic properties of this plant and encourages its use as a safer,environmental-friendly and efficient insecticide in food industry.

关键词： Apigenin Lasioderma Repellent activity Full flowering stage

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