de Mentha pulegium et de Tanacetum annuum a été examinée vis-à-vis de trois moisissures responsables de la pourriture des pommes. L'analyse par CG-SM des huiles essentielles obtenues par hydrodistillation a montré que celle de M. pulegium renferme principalement de la pulégone (90,2%), alors que celle de T. annuum est dominée par le sabinène (39,5%). L'évaluation de l'effet des extraits végétaux sur la croissance fongique, par la technique de micro-atmosphère, a révélé que 100 à 1200 µl/l d'huile de T. annuum n'ont pas affecté la croissance des champignons ; cependant, l'eugénol et l'huile de M. pulegium ont complètement inhibé la croissance des trois moisissures.Mots clés : activité antifongique -eugénol -huile essentielle -Mentha pulegium -Tanacetum annuum.Abstract.-The antifungal activity of eugenol and essential oils vapors of Mentha pulegium and Tanacetum annuum was examined against three apple rot fungi. Analysis by GC-MS of the essential oils obtained by hydrodistillation shows that M. pulegium oil contains mainly pulegone (90.2%), while that of T. annuum is dominated by sabinene (39.5%). The evaluation of the effect of plant extracts on fungal growth, by the technique of micro-atmosphere, reveals that 100 to 1200 µl/l essential oil of T. annuum does not affect the fungal growth; however, eugenol and oil of M. pulegium oil have completely stopped the growth of three fungi.
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