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DİKPINAR, TUĞÇE

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Author: DİKPINAR, TUĞÇE × Subject: Coumarin ×

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    Phytochemical evaluation of the Ferulago genus and the pharmacological activities of its coumarin constituents
    (Elsevier GmbH, 2021) DİKPINAR, TUĞÇE; Süzgeç-Selçuk S., Dikpınar T.
    The genus Ferulago W. Koch is a member of the Apiaceae (Umbelliferae) family and consists of 49 species throughout the world. In traditional medicine, Ferulago species have been utilized as sedatives, carminatives, aphrodisiacs, for increasing milk secretion and for the treatment of bronchitis, skin diseases, and eye diseases. The authors aimed to evaluate the phytochemical constituents of Ferulago species and the pharmacological activities of its coumarins. In this review, literature searches were performed using scientific search engines and databases (Google Scholar, SciFinder, Science Direct, Scopus, PubMed.) for papers published in the past until June 2019. The molecular structures of all isolated compounds are shown in Tables 2, 3, and 4, and the main constituents of the essential oil (Table 5) are indicated with the identified number, characterization, and extraction method. Additionally, the pharmacological activities of the coumarins isolated from the Ferulago genus were investigated. The results demonstrated that coumarins have various pharmacological activities such as antimicrobial, antioxidant, antiproliferative, and anticholinesterase activities. Therefore this review may be considered to be an important scientific resource for future research. © 2020 Elsevier GmbH
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    Antimicrobial activity of rhizomes of Ferulago trachycarpa Boiss. and bioguided isolation of active coumarin constituents
    (ELSEVIER SCIENCE BV, 2018) DİKPINAR, TUĞÇE; Dikpinar, Tugce; Suzgec-Selcuk, Sevda; Celik, Berna Ozbek; Urusak, Emine Akalin
    Ferulago trachycarpa (Apiaceae) is a plant used traditionally for its sedative, digestive, carminative and aphrodisiac properties with distribution in West, Southwest and South Anatolian part of Turkey. In this study the antimicrobial activities of fractionally n-hexane, dichloromethane, methanol and only methanol extracts from rhizomes of F. trachycarpa were screened against Stapylococcus aureus ATCC 6538, S. epidermidis ATCC 12228, Escherichia coli ATCC 8739, Kiebsiella pneumoniae ATCC 4352, Pseudomonas aeruginosa ATCC 27853, Proteus mirabilis ATCC 14153, Enterococcus feacalis ATCC 29212 bacterial strains and fungal strains such as Candida albicans ATCC 10231, C. tropicalis ATCC 750 and C. parapsilosis ATCC 22019 by microdilution method. All extracts have been shown to possess antimicrobial activities against bacteria and fungal strains and according to the antimicrobial results, the isolation of the active constituents was made from the most active n-hexane and dichloromethane extracts. So, four pure compounds are known as coumarin derivatives, crenulatin (6-formyl-7-methoxycoumarin), suberosin (7-methoxy-6-prenylcoumarin), marmesin senecioate ((-)-prantschimgin) as dihydrofuranocoumarin derivative and ulopterol [6- (2', 3'-dihydroxy-3'-methylbuty1)-7-methoxy-coumarin] were isolated. Crenulatin (6-formyl-7-methoxycoumarin), suberosin (7-methoxy-6-prenylcoumarin), marmesin senecioate ((-)-prantschimgin) which are pure compounds demonstrated antifungal activity with 625 mg/L MIC against C. albicans and antibacterial activity with 1250 mg/L MIC against S. aureus (MRSA). These results indicate that extracts and pure compounds obtained from Ferulago trachycarpa could be a potential for pharmaceutical products which have antimicrobial activity.