4. Conclusion
The oil obtained from dry capsules has been found to be rich in unsaturated fatty acids (oleic and linoleic). Considering the usage areas of these two fatty acids, the oil obtained from Hypericum capsules has the potential to be evaluated in different areas. Significant effects of different development periods on herbage essential oil rate and composition were determined. The chemical composition of essential oil in medicinal and aromatic plants is an important factor that determines quality. The amount and composition of essential oil contained in plants is an indicator of the economic value of that product. Considering the change of bioactive substances in plants, it should be well known in which development period the plant will be collected/harvested. According to result of the literature searches, germacrene-D, bicyclogermacrene,δ -cadinene, spathulenol, α -guaiene, and valencene in herbage essential oil and limonene, cis -ocimene,β -myrcene, and α, β -pinene in dry capsule were determined that they exhibited important biological activities. A lot of information obtained from this study, in which some plant and chemical properties of H. heterophyllum , which is an endemic plant, is examined, is the first. Therefore, the findings obtained will form an important basis for future studies.
Conflict of Interest The authors declare that they have no conflict of interest.