[ Comparaison de la composition chimique et l’activité insecticide des huiles essentielles de Mentha suaveolens Ehrh. prélevées de deux régions différentes du Maroc contre Bruchus rufimanus (Bohman) (Coleoptera: Chrysomelidae) ]
Volume 18, Issue 3, November 2016, Pages 836–845
Sanae Amzouar1, Ahmed Boughdad2, Abdlwahed Maatoui3, and Latifa Allam4
1 Laboratoire d'entomologie appliquée, Equipe de protection des plantes et environnement, département de biologie, Université Moulay Ismail, Faculté des sciences, Meknès, Morocco
2 Département de Protection des Plantes et de l’Environnement, Ecole Nationale d’Agriculture, Meknès, Morocco
3 Département de production des plantes, Ecole Nationale d’Agriculture, Meknès, Morocco
4 Laboratoire d'entomologie appliquée, Equipe de protection des plantes et environnement, département de biologie, Université Moulay Ismail, Faculté des sciences, Meknès, Morocco
Original language: French
Copyright © 2016 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Morocco provides a large botanical treasure which can be the source of many interesting products for the development of new insecticides. The purpose of this study was to validate the therapeutic properties of Mentha suaveolens Ehrh. used heavily in Moroccan traditional medicine, to determine the chemical composition of its essential oils (EO) and to assess its insecticidal activity against Bruchus rufimanus .The leaves and flowers of M. suaveolens Ehrh. were collected in two regions of Morocco (Middle Atlas and Loukkos). The chemical composition of EO was analyzed by gas chromatography coupled to mass spectrometry. 41 The Constituents representative (99.12%) from that of Loukkos whereas 35 constituents representative (99.60%) of the Middle Atlas, the majority compound of the two oils is the oxide of piperitenone. The probabilities of survival and the values of the LC50 and LC99 reveal that the EO of M. suaveolens Ehrh. presents a strong insecticidal activity. This toxicity increases with the increase of the concentration and the duration of exposure. After 24h of exposure the EO of Loukkos proves to be more active than that of Middle Atlas. Therefore the insecticidal activity is intimately linked to the chemical composition of the oils tested. It can be inferred that the yield and the chemical composition of EO that were studied vary in function of the region of the plant as well as these oils studied can be used as botanical insecticides against B. rufimanus.
Author Keywords: Mentha suaveolens, Essential Oil, GC-MS, insecticidal activity, fumigation, Bruchus rufimanus.
Volume 18, Issue 3, November 2016, Pages 836–845
Sanae Amzouar1, Ahmed Boughdad2, Abdlwahed Maatoui3, and Latifa Allam4
1 Laboratoire d'entomologie appliquée, Equipe de protection des plantes et environnement, département de biologie, Université Moulay Ismail, Faculté des sciences, Meknès, Morocco
2 Département de Protection des Plantes et de l’Environnement, Ecole Nationale d’Agriculture, Meknès, Morocco
3 Département de production des plantes, Ecole Nationale d’Agriculture, Meknès, Morocco
4 Laboratoire d'entomologie appliquée, Equipe de protection des plantes et environnement, département de biologie, Université Moulay Ismail, Faculté des sciences, Meknès, Morocco
Original language: French
Copyright © 2016 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
Morocco provides a large botanical treasure which can be the source of many interesting products for the development of new insecticides. The purpose of this study was to validate the therapeutic properties of Mentha suaveolens Ehrh. used heavily in Moroccan traditional medicine, to determine the chemical composition of its essential oils (EO) and to assess its insecticidal activity against Bruchus rufimanus .The leaves and flowers of M. suaveolens Ehrh. were collected in two regions of Morocco (Middle Atlas and Loukkos). The chemical composition of EO was analyzed by gas chromatography coupled to mass spectrometry. 41 The Constituents representative (99.12%) from that of Loukkos whereas 35 constituents representative (99.60%) of the Middle Atlas, the majority compound of the two oils is the oxide of piperitenone. The probabilities of survival and the values of the LC50 and LC99 reveal that the EO of M. suaveolens Ehrh. presents a strong insecticidal activity. This toxicity increases with the increase of the concentration and the duration of exposure. After 24h of exposure the EO of Loukkos proves to be more active than that of Middle Atlas. Therefore the insecticidal activity is intimately linked to the chemical composition of the oils tested. It can be inferred that the yield and the chemical composition of EO that were studied vary in function of the region of the plant as well as these oils studied can be used as botanical insecticides against B. rufimanus.
Author Keywords: Mentha suaveolens, Essential Oil, GC-MS, insecticidal activity, fumigation, Bruchus rufimanus.
Abstract: (french)
Le Maroc fournit un grand trésor botanique qui peut être la source de nombreux produits intéressants pour le développement de nouveaux insecticides. Le but de cette étude était de valider les propriétés thérapeutiques de Mentha suaveolens Ehrh. utilisée fortement dans la médecine traditionnelle marocaine, afin de déterminer la composition chimique de ses huiles essentielles (HE) et d'évaluer son activité insecticide contre Bruchus rufimanus .Les feuilles et les fleurs de M. suaveolens Ehrh. ont été prélevées dans deux régions du Maroc (Moyen Atlas et Loukkos). La composition chimique des HE a été analysée par GC-MS. 41 constituants représentant (99,12%) de celle de Loukkos Alors que 35 constituants représentant (99,60%) de celle de Moyen Atlas, le composé majoritaire des deux huiles est l’oxyde de piperitenone. Les probabilités de survie et les valeurs de la CL50 et CL99 révèlent que les HE de M. suaveolens Ehrh. présente une activité insecticide forte. Cette toxicité croît avec l'augmentation de la concentration et la durée d'exposition. Après 24h d'exposition l’HE de M. suaveolens Ehrh. de Loukkos s'avère être plus active que celle de Moyen Atlas. Donc l'activité insecticide est intimement liée à la composition chimique des huiles testées. On peut déduire que le rendement et la composition chimiques des HE étudiées varient en fonction de la région de la plante ainsi que ces huiles étudiées peuvent être utilisées comme insecticides botaniques contre B. rufimanus.
Author Keywords: Mentha suaveolens, huile essentielle, GC-MS, Activité insecticide, Fumigation, Bruchus rufimanus.
How to Cite this Article
Sanae Amzouar, Ahmed Boughdad, Abdlwahed Maatoui, and Latifa Allam, “Comparison of the chemical composition and the insecticidal activity of essential oils of Mentha suaveolens Ehrh. collected from two different regions of Morocco, against Bruchus rufimanus (Bohman) (Coleoptera: Chrysomelidae),” International Journal of Innovation and Applied Studies, vol. 18, no. 3, pp. 836–845, November 2016.
