Determination of the volatile constituents and total phenolic contents of some endemic Stachys taxa from Turkey

Ozkan G., Gokturk R., Unal O., ÇELİK S.

CHEMISTRY OF NATURAL COMPOUNDS, vol.42, no.2, pp.172-174, 2006 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 42 Issue: 2
  • Publication Date: 2006
  • Doi Number: 10.1007/s10600-006-0070-1
  • Journal Name: CHEMISTRY OF NATURAL COMPOUNDS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.172-174
  • Yıldız Technical University Affiliated: No

Abstract

The total phenolic contents and the essential oil compositions of the previously unknown Stachys taxa (Labiatae), including Stachys pinardii Boiss, Stachys cretica L subsp. mersinaea (Boiss.) Rech., and Stachys aleurites Boiss. & Heldr., all endemic to Turkey, were studied. Their essential oil compositions were investigated by GC-MS. It was found that the main constituents were alpha-curcumene (34.10%)for S. cretica, cedrandiol (25.26%) and caryophyllene dioxide (22.15%) for S. pinardii, and (Z)-beta-caryophyllene (31.60%) for S. aleurites. The total phenolic contents, by the Folin-Ciocalteu colorimetric method, of the S. pinardii, S. cretica subsp. mersinaea, and S. aleurites methanolic extract were found to be 600.74+/-0.23, 1200.94+/-0.11, and 900.61+/-0.06 mg gallic acid equivalent (GAE)/100 g in dried herb, respectively.