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Common Name : Pudina / Corn Mint Plant Parts Used : Parts Used. Leaves, flowering tops, stems, extract Description : A small herb of erect habit. Stem short, branched, square and creeping rhizomes. Leaves narrow below stalked, oblong, lanceolate toothed, 3-6 cm long. Small lilac flowers are in whorls. Characteristics and Constituents : The main constituents of oil are 4.5-10% esters- Menthyl acetate, not less than 44% free alcohols calculated as menthol and 15-20% of ketones calculated as methonic. M. arvensis yields 70-90% of menthol. A key intermediate (+) pulegone that appears to be either oxidised to mentho-furane or reduced to (+) isomethone or (-) menthone, which are further reduced and converted to esters, menthone giving menthol and menthyl acetate. The other component found are ? - pipene, ? -thujene, -Iimonine, ?-phellandrene, cineol piperitone, caryophyllene and unidentified sesquiterpene. |
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