Variation of chemical composition of essential oils in Thymus serpyllum L. subsp.serpyllum growing wild in Lithuania Kristina Lo

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Variation of chemical composition of essential
oils in Thymus serpyllum L. subsp.serpyllum
growing wild in LithuaniaKristina Ložiene
Institute of Botany, Žaliuju Ežeru g. 49,
Vilnius, LT-08406, Lithuania (kristina.l_at_botanika.
lt)Petras R. VenskutonisDepartment of Food
Technology, Kaunas University of Technology,
Radvilenu pl. 19, Kaunas, LT-3028, Lithuania
(rimas.venskutonis_at_ktu.lt)
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• The purpose of this study was to determine
  chemical composition of the oil of T. serpyllum
  subsp. serpyllum plants collected in various
  localities in Lithuania and to define the
  chemotypes within this subspecies growing wild in
  Lithuania.

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• Material and methods
• In total 26 T. serpyllum subsp. serpyllum
  individual plants (samples) were collected at the
  flowering stage in July from 14 different sites
  in Lithuania.
• The oils were isolated from the selected
  individual plants by hydrodistillation in a
  Clevenger-type apparatus (European Pharmacopoeia)
  during two hours. GC and GC/MS carried out the
  analyses of the essential oils.

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Collecting sites of Thymus serpyllum subsp.
serpyllum samples
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Range of the amount () of the main components
essential oil in different Thymus serpyllum
subsp. serpyllum samples
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Two dimensional dendrogram obtained in the
cluster analysis of the essential oils of samples
of Thymus serpyllum subsp. serpyllum
(E)-?-ocimene, ?-cadinol, cis-p-menth-2-en-1-ol,
1,8-cineole, germacrene B
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• This study proved that T. serpyllum subsp.
  serpyllum plants from the Northern climatic area
  dont accumulate volatile phenolic compounds
  thymol and carvacrol in more remarkable amounts.

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