Intraspecific variability of the essential oil of Calamintha nepeta subsp. nepeta from Southern Italy (Apulia).

Intraspecific variability of the essential oil of Calamintha nepeta subsp. nepeta from Southern Italy (Apulia).

Natural product research (2012-06-01)

C Negro, S Notarnicola, L De Bellis, A Miceli

ABSTRACT

The essential oil of 46 spontaneous plants of Calamintha nepeta (L.) Savi subsp. nepeta growing wild in Sud, Italy (Salento, Apulia), were investigated by GC/MS. Fifty-seven components were identified in the oil representing over the 98% of the total oil composition. Four chemotypes were identified: piperitone oxide, piperitenone oxide, piperitone-menthone and pulegone.

MATERIALS

Product Number

Brand

Product Description

P55708

Sigma-Aldrich

(R)-(+)-Pulegone, 85%, technical grade

W296309

Sigma-Aldrich

(R)-(+)-Pulegone, ≥90%

82569

Supelco

(+)-Pulegone, analytical standard