1991•Journal of Essential Oil ResearchRequires access

The Chemical Polymorphism ofThymus zygisssp.sylvestrisfrom Central Portugal

A. Proença da Cunha, Lı́gia Salgueiro

Abstract

The chemical composition of the essential oil of Thymus zygis L. ssp. sylvestris (Hoffm. & Link) Brot. ex Coutinho obtained from spontaneous plants in the center of Portugal was examined chromatographically using Kovats indices and reference compounds as the methods of component identification. A well-marked chemical polymorphism was detected in these essential oils probably due to genetic factors. Seven pure chemotypes (the linalool, thymol, carvacrol, geraniol/geranyl acetate, 1, 8-cineole/linalool, 1, 8-cineole/thymol and the oc-terpineol/α-terpinyl acetate) and two mixed chemotypes (the linalool-thymol and the cineole-linalool-thyrnol) were characterized.

About this research paper

What this paper is about

Why it matters

OpenAlex reports 11 citations for this work. Citation counts describe recorded attention and do not establish research quality.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

Key concepts: Linalool, Thymol, Chemotype, Carvacrol, Geranyl acetate, Geraniol, Chemistry, Essential oil