The Essential Oil of Ocimum americanum from Senegal and Gambia as a Source of Methyleugenol for the Control of Bactrocera dorsalis, Fruit Fly  

作　　者：Yoro Tine Antonio Alain Coffi Sinzogan Ousmane Ndiaye Cebastiana Sambou Alioune Diallo Ismaila Mbenga Kemo Badji El Hadji Omar Dieng Assa Balayara Jeanne Diatta Cheikhouna Gaye Julien Paolini Jean Costa Alassane Wele Saliou Ngom Yoro Tine;Antonio Alain Coffi Sinzogan;Ousmane Ndiaye;Cebastiana Sambou;Alioune Diallo;Ismaila Mbenga;Kemo Badji;El Hadji Omar Dieng;Assa Balayara;Jeanne Diatta;Cheikhouna Gaye;Julien Paolini;Jean Costa;Alassane Wele;Saliou Ngom(Laboratoire de Chimie Organique et Thérapeutique, Faculté de Médecine, Pharmacie et Odontologie, Université Cheikh Anta Diop, Dakar, Sénégal;Faculte des Sciences Agronomiques, Universite d’Abomey Calavi, Cotonou, Benin;Ecole Nationale Supérieure d’Agriculture (ENSA), Université Iba Der Thiam de Thiès, Thiès, Sénégal;Direction de la Protection des Végétaux, Rufisque, Sénégal;Laboratoire de Chimie des Produits Naturels, Université de Corse, Corte, France;National Agricultural Research Institute (NARI), Sere Kunda, Gambia;Institut Sénégalais de Recherches Agricoles (ISRA), Dakar, Sénégal)

机构地区：[1]Laboratoire de Chimie Organique et Thérapeutique, Faculté de Médecine, Pharmacie et Odontologie, Université Cheikh Anta Diop, Dakar, Sénégal [2]Faculte des Sciences Agronomiques, Universite d’Abomey Calavi, Cotonou, Benin [3]Ecole Nationale Supérieure d’Agriculture (ENSA), Université Iba Der Thiam de Thiès, Thiès, Sénégal [4]Direction de la Protection des Végétaux, Rufisque, Sénégal [5]Laboratoire de Chimie des Produits Naturels, Université de Corse, Corte, France [6]National Agricultural Research Institute (NARI), Sere Kunda, Gambia [7]Institut Sénégalais de Recherches Agricoles (ISRA), Dakar, Sénégal

出　　处：《Journal of Agricultural Chemistry and Environment》2024年第1期133-141,共9页农业化学和环境（英文）

摘　　要：The fruit fly, Bactrocera dorsalis (Diptera: Tephritidae) is one of the most important pests in all mango-producing areas, particularly in West Africa. In Senegal, O. americanum leaves have been used for several years to control this fly. However, to our knowledge, no chemical studies have been carried out. Thus, the aim of this study is to determine the chemical composition of the essential oil of O. americanum leaves collected in Senegal and Gambia. The essential oil obtained by hydrodistillation of these leaves is analyzed by GC/FID and GC/MS. Yields of essential oils from O. americanum leaves are 3.84% and 2.13%, respectively. Analysis of these essential oils by GC/FID and GC/MS allowed the identification of 23 compounds representing almost 100% of the total compositions. These essential oils are mainly dominated by methyleugenol (72.0% and 75.8%, respectively). Other components in significant percent are trans-β-caryophyllene (13.9% and 13.0%, respectively), germacrene D (4.1% and 3.7%, respectively), β-elemene (3.3% and 0.9%, respectively). Due to the high methyleugenol content, this study explains the attractive potential of O. americanum towards B. dorsalis. In perspective, we plan to evaluate the attractive effect of the essential oil and leaf powder of O. americanum against B. dorsalis, a real pest of mango orchards in Senegal.The fruit fly, Bactrocera dorsalis (Diptera: Tephritidae) is one of the most important pests in all mango-producing areas, particularly in West Africa. In Senegal, O. americanum leaves have been used for several years to control this fly. However, to our knowledge, no chemical studies have been carried out. Thus, the aim of this study is to determine the chemical composition of the essential oil of O. americanum leaves collected in Senegal and Gambia. The essential oil obtained by hydrodistillation of these leaves is analyzed by GC/FID and GC/MS. Yields of essential oils from O. americanum leaves are 3.84% and 2.13%, respectively. Analysis of these essential oils by GC/FID and GC/MS allowed the identification of 23 compounds representing almost 100% of the total compositions. These essential oils are mainly dominated by methyleugenol (72.0% and 75.8%, respectively). Other components in significant percent are trans-β-caryophyllene (13.9% and 13.0%, respectively), germacrene D (4.1% and 3.7%, respectively), β-elemene (3.3% and 0.9%, respectively). Due to the high methyleugenol content, this study explains the attractive potential of O. americanum towards B. dorsalis. In perspective, we plan to evaluate the attractive effect of the essential oil and leaf powder of O. americanum against B. dorsalis, a real pest of mango orchards in Senegal.

关 键 词：Ocimum americanum Essential Oils Methyleugenol Bactrocera dorsalis GC/MS 

分 类 号：F42[经济管理—产业经济]