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    Determination of fingerprints contents of different extracts and parts of six endemic Salvia taxa by GC-MS: Source species for valuable compounds with drug or drug potential
    (Wiley, 2022) Akdeniz, Mehmet; Yener, İsmail; Dinçel, Demet; Fırat, Mehmet; Değirmenci, Dilek Karataş; Ertaş, Abdulselam
    Public use of Salvia species and their importance in the scientific world is continually increasing. It is known that this use and the importance of Salvia species are mostly due to the terpenoid compounds that they contain. In this context, the terpenoid-steroid-flavonoid contents of extracts of six endemic Salvia (S. kurdica, S. pseudeuphratica, S. rosifolia, S. siirtica, S. cerino-pruinosa var. cerino-pruinosa and S. cerino-pruinosa var. elazigensis) species prepared with different solvents were determined by gas chromatography-mass spectrometry. Within the framework of the ingredient analysis, content analysis of the ethanol extracts of the root, branch, leaf and flower parts of the species collected in the same period between 2015 and 2017 years was performed. In general, extracts prepared with chloroform and ethanol were found to contain a wide variety of compounds while petroleum ether extracts were found to contain much less varied compounds. In addition, in general, root extracts are richer in terpenoid compounds than aerial part extracts. Some species can be used as source species in terms of ferruginol, cryptanol, 6,7-dehydroroyleanone, lup-(20)29-ene-2 alpha-hydroxy-3 beta-acetate, salvigenin and beta-sitosterol contents (52,114.28, 75,979.08, 101,247.41, 40,071.29, 33,952.13 and 34,010.90 mu g analyte/g extract, respectively).
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    Docking studies of natural product derived carvacrol type aromatic monoterpenes against COVID-19 and comparison with used synthetic drugs: Potential of carvacryl acetate against SARS-CoV-2 (COVID-19)
    (Dicle Üniversitesi Fen Bilimleri Enstitüsü, 2023) Kocakaya, Şafak Özhan; Ertaş, Abdulselam; Yener, İsmail; Arıca, Enes; Dinçel, Demet
    The COVID-19 pandemic that broken out in 2020 is becoming more worrying for the world. Although there is no 100 % success against COVID-19, certain synthetic drugs are currently used despite various side effects. Therefore, studies on the discovery of new treatment alternatives come to the fore. Studies so far show that natural products are still important resources for the discovery of new therapeutic agents. Plantderived essential oils are complex volatiles composed of various phytochemicals, mostly containing compounds such as sesquiterpenes, monoterpenes, and phenylpropanoids. In this study, especially thymol and carvacrol compounds specific to the Lamiaceae (Labiate) family and aromatic monoterpenes derived from these compounds were modeled against COVID-19. Results were compared with remdesivir, hydroxychloroquine, and favipiravir used as synthetic drugs. Dock and molecular dynamics simulations analyzed these molecules’ potential inhibitor efficiency of the SARS-CoV2 Mpro . Lipinski parameters and Docking results were demonstrated that ligands carvacrol (2), carvacryl acetate (11) and cuminaldehyde (12) are potential inhibitors towardsCOVID-19. According to the results, it is seen that medicinal aromatic herbs, which contain these volatile components with the fewer side effects than synthetic drugs, have the potential to be used as supplements in the pharmaceutical industry.