Variabilité de la composition chimique des huiles essentielles de Mentha rotundifolia du Nord de l’Algérie

Abstract

Variability of the chemical composition of Mentha rotundifolia from Northern Algeria. Algerian oils of Mentha rotundifolia (L.) Huds., obtained by steam distillation (yield : 0,8%), have been analysed by means of GC-FID and GC/MS. The results indicate clearly the occurrence of two chemotypes which are presently described. The former contains high proportions of piperitone oxide (19,7–31,4%) and piperitenone oxide (27,8–29,4%) respectively and the latter revealed piperitenone (54,9%) and piperitenone oxide (17,6%) as the major constituents. Such particular composition is reported for the first time within the M. rotundifolia species.

Keywords

• Mentha rotundifolia (L.) Hud
• essential oil composition
• piperitenone oxide
• piperitone oxide
• piperitenone