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Enantiomeric distribution of piperitone in essential oils of some mentha spp., calamintha incána (sm.) heldr. and artemisia judaica L
Author(s) -
Ravid Uzi,
Putievsky Eli,
Katzir Irena
Publication year - 1994
Publication title -
flavour and fragrance journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.393
H-Index - 70
eISSN - 1099-1026
pISSN - 0882-5734
DOI - 10.1002/ffj.2730090210
Subject(s) - chemistry , enantiomer , botany , essential oil , stereochemistry , chromatography , biology
The enantiomeric composition and relative quantity of piperitone in laboratory‐made essential oils and in essential oils and samples of piperitone from commercial sources were determined. High enantiomeric purities of (4 R )(‐)‐piperitone were detected in Mentha longifolia (L.) Huds. (Negev type) oil. The (4 S )(+)‐enantiomer was detected in peppermint oils and in M. longifolia L. Huds. (Yizre'el Valley) oil in a high enantiomeric ratio. The presence of (4 R )(‐)‐piperitone in the oils of some Mentha species is contrary to the postulation that only the (4 S )‐enatiomer occurs naturally in the Mentha genus .