Composition of the essential oils of three Uzbek Scutellaria species (Lamiaceae) and their antioxidant activities. Issue 10 (19th May 2017)

• Record Type: Journal Article
• Authors: Mamadalieva, Nilufar Zokirjonovna; Sharopov, Farukh; Satyal, Prabodh; Azimova, Shahnoz Sadykovna; Wink, Michael
• Is Part Of: Natural product research. Volume 31:Issue 10(2017)
• Page Start: 1172
• Page End: 1176
• Publication Date: 2017-05-19
• Subjects: Flora of Uzbekistan -- Scutellaria -- GC–MS -- essential oils -- antioxidant activity; Natural products -- Periodicals; Natural products -- Research -- Periodicals; Biological Factors -- Periodicals; Biological Products -- Periodicals; 547
• DOI: 10.1080/14786419.2016.1222383
• Languages: English
• ISSNs: 1478-6419

Abstract

Abstract: The chemical composition of the essential oils obtained from aerial parts of Scutellaria immaculata Nevski ex Juz., Scutellaria ramosissima M. Pop. and Scutellaria schachristanica Juz. (Lamiaceae) growing wild in Uzbekistan was analysed by GC and GC–MS. The main constituents of the essential oils from S. immaculata were acetophenone (30.39%), eugenol (20.61%), thymol (10.04%) and linalool (6.92%), whereas constituents of the essential oils from S. schachristanica were acetophenone (34.74%), linalool (26.98%) and eugenol (20.67%). The S. ramosissima oil is dominated by germacrene D (23.96%), β -caryophyllene (11.09%), linalool (9.63%) and hexadecanoic acid (8.34%). The essential oils of Scutellaria species exhibited weaker antioxidant effects in DPPH, ABTS and FRAP assays. In FRAP assay, only eugenol exhibited a substantial reducing power IC50 = 2476.92 ± 15.8 (mM Fe(II)/g). Graphical Abstract: