Abstract
Thymbra species are abundantly found in the wild, and also Tanacetum densum (Lab.) Schultz Bip. subsp. amani Heywood is an endemic plant of the Southeastern Anatolian, Turkey. Air-dried aerial parts of the plants were submitted to hydrodistillation, for 3 hours, using a Clevenger-type apparatus. Cultivated and wild Thymbra spicata var. spicata, Thmybra sintenisii Bornm. & Aznav. and Tanacetum densum subsp. amani species were compared for their essential oil constituents using GC/MS analysis. The results showed that the major constituents of essential oil of both Thymbra species were carvacrol, γ-terpinene, p-cymene, β-caryophyllene, myrcene and α-phellandrene. Essential oil of cultivated T. spicata contained lower carvacrol percentage (67.91%) compared to the carvacrol percentage of cultivated species (72.56%). Conversely α-pinene percentage of cultivated T. sintenisii was higher compared to wild forms. P-cymene was found second major constituent in the essential oil T. sintenisii. Tanacetum oil was pale greenish and had a pleasant odour, with a yield of 0.1% (v/w) for wild form and 0.15% for cultivated form. Twenty-three components representing 84.53-93.41% of the oil were characterized, of which bisabolone oxide (25.62%), carvacrol (26.73%), isoborneol (10.07%), borneol (14.05%), β-panasinsene (8.95%), eucalyptol (10.13%) and camphor (4.71%) were the main compounds.
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Claims 7
Claim · model-written summary
The major oil constituents of both Thymbra species were the listed six compounds.
- Outcome
- major constituents of essential oile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“the major constituents of essential oil of both Thymbra species were carvacrol, γ-terpinene, p-cymene, β-caryophyllene, myrcene and α-phellandrene”
Claim · model-written summary
Cultivated T. spicata oil had 67.91% carvacrol, lower than the stated comparison.
- Taxon
- T. spicata
Thymbra spicatae0 - Outcome
- carvacrol percentagee0
- Direction
- lowere0
- Value
- 67.91%e0
- Qualifier
- 72.56%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Essential oil of cultivated T. spicata contained lower carvacrol percentage (67.91%) compared to the carvacrol percentage of cultivated species (72.56%).”
Claim · model-written summary
Cultivated T. sintenisii had a higher α-pinene percentage than wild forms.
- Taxon
- T. sintenisiiThymbra sintenisiie0
- Outcome
- α-pinene percentagee0
- Direction
- highere0
- Comparator
- wild formse0
Verbatim
e0“α-pinene percentage of cultivated T. sintenisii was higher compared to wild forms”
Claim · model-written summary
P-cymene was the second major constituent of T. sintenisii oil.
- Taxon
- T. sintenisiiThymbra sintenisiie0
- Outcome
- P-cymene was found second major constituente0
Not reportedDirection
Verbatim
e0“P-cymene was found second major constituent in the essential oil T. sintenisii”
Claim · model-written summary
Wild Tanacetum oil yielded 0.1% (v/w).
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Tanacetum oil was pale greenish and had a pleasant odour, with a yield of 0.1% (v/w) for wild form”
Claim · model-written summary
Cultivated Tanacetum oil yielded 0.15%.
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Tanacetum oil was pale greenish and had a pleasant odour, with a yield of 0.1% (v/w) for wild form and 0.15% for cultivated form”
Claim · model-written summary
Twenty-three oil components represented 84.53-93.41% of the oil, including the listed main compounds.
Not reportedTaxon
Verbatim
t0“SOME WILD AND CULTIVATED MEDICINAL PLANTS”
e0“Twenty-three components representing 84.53-93.41% of the oil were characterized, of which bisabolone oxide (25.62%), carvacrol (26.73%), isoborneol (10.07%), borneol (14.05%), β-panasinsene (8.95%), eucalyptol (10.13%) and camphor (4.71%) were the main compounds.”