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  • 1 Department of Organic Chemistry, West Pomeranian University of Technology, Szczecin, Aleja Piastów 42, 71-065, Szczecin, Poland
  • | 2 Department of Vegetable Crops, West Pomeranian University of Technology, Szczecin Janosika 8, 71-424, Szczecin, Poland
  • | 3 Department of Plant Raw Material Processing and Storage, West Pomeranian University of Technology, Szczecin, Słowackiego St 17, 71-434, Szczecin, Poland
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Summary

The essential oil of the herb Nepeta cataria L. var. citriodora was obtained by hydrodistillation in Dean-Stark apparatus and by steam distillation. The chemical composition of the oil was determined by GC-MS. Two different GC oven temperature programs were tested. The main constituents of all the samples studied were the monoterpene alcohols (R)-(+)-β-citronellol and geraniol. The largest amounts of monoterpene aldehydes (geranial and neral) were found in the hydrodistilled oil. α-Amyrin (a precursor of ursolic acid) was also detected in the oil. trans-Rose oxide, α-terpineol, geranic acid, and trace amount of rose-oxide were found in the steam distilled oil only.

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