Abstract
In this study, the diurnal variability of essential oil components of the species Hypericum perfoliatum was investigated. To determine diurnal variation, during the flowering period collection was carried out at three different times of the day (9a.m., 12a.m., 4p.m.). As a result of this research, it was aimed to determine the most appropriate harvest time during the day. The essential oil components were analyzed using GC-MS device after the production of essential oil was determined by hydrodystylation method. The main components of essential oils were found to contain mainly α-pinene (41.2%), β-pinene (6.2%), n-nonane (5.6%), ϒ-muurolene (4.7%), α-calacorene (4.2%), δ-cadinene (3.7%), n-undecane (3.2%) and caryophyllene oxide (3.1%).
Highlights
IntroductionTurkey is an important gene center in terms of Hypericum L
Turkey is an important gene center in terms of Hypericum L. (Hypericaceae) species
According to the results of essential oil components of the samples taken from the full plant at 9a.m. during the full flowering period of H. perfoliatum species, α-Pinene (41.2%), β-Pinene (6.2%), n-Nonane (5.6%), Υ-Muurolene (4.7%), α-Calacorene (4.2%), δ-Cadinene (3.7%), n-Undecane (3.2%) and Caryophyllene oxide (3.1%) were determined
Summary
Turkey is an important gene center in terms of Hypericum L. Hypericum genus, which is represented by approximately 500 species in the world, is represented by more than 100 taxa in Turkey, 44 of these taxa which are endemic [1]. Hypericum species have been used in the treatment of certain diseases in public medicine since the earliest times of history. Hypericum perforatum is successfully used by many countries to treat stomach ailments skin wounds, and especially antidepressants [2]. Due to these proven medicinal effects, it is a plant in most pharmacopoeia and monographs [3]. The fact that it is difficult to collect from nature and the fact that the existence of its species is endangered makes it necessary to take these plants into culture [4]
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