Volatile Components of Two Onosma Tokat Province of Turkey

Abstract

The genus Onosma L. (Boraginaceae) is represented in Turkey by 105 species (110 taxa), 53 of them and 1 variety are endemic for Turkey. Some species of Onosma are used as herbs, traditional medicine such as against burns, wounds and ailments. Hydrodistilled essential oils of the aerial parts of Onosma isaurica Boiss. & Heldr. and Onosma bulbotrichum DC. were analyzed by GC and GC-MS systems, simultaneously. The essential oil of O. isaurica contained hexahydrofarnesyl acetone (20.3%), phytol (19.0%), farnesyl acetone (8.1%) and neophytadiene isomer I/tetradecanal (7.0%) as main constituents. The oil of O. bulbotrichum was characterized by the occurrence of hexahydrofarnesyl acetone (11.6%), farnesyl acetone (9.9%), hexadecanal (8.8%) E-geranyl acetone (7.4%) and neophytadiene isomer I (7.3%) as major components.

Onosma mutabilis: Phytochemical composition, antioxidant, cytotoxicity, and acute oral toxicity

“…The presence of pyrrolizidine alkaloids and their biological roles including antioxidant activity has been reported in various Onosma species including O. arenaria, O. columnae, O. eptantha, O. erecta, O. kaheirei (El-Shazly et al, 2003;Yıldız et al, 2020;Damianakos et al, 2014a).…”

Onosma L. as a source of anticancer agents: phytochemistry to mechanistic insight

“…More than 230 species of Boraginaceae exist throughout Asia and Europe [1][2][3][4]. There are numerous species of O. present throughout the globe such as 105 species in Turkey [5], 54 species in Iran [6], 8 species in Pakistan [7], more than 15 species in India [8], 33 and 34 species in Russia and adjacent states [9]. There are now 250 species in the genus O. as a result of several studies that have been directed in recent years [10][11][12][13][14].…”