Article

Composition of the essential oils of three Uzbek <i>Scutellaria</i> species (Lamiaceae) and their antioxidant activities

Nilufar Z. MamadalievaLaboratory of the Chemistry of GlycosidesInstitute of the Chemistry of Plant Substances, Tashkent, UzbekistanFarukh SharopovDepartment of Biology, Heidelberg University, Institute of Pharmacy and Molecular Biotechnology, Heidelberg, GermanyPrabodh SatyalDepartment of Chemistry, University of Alabama in Huntsville, Huntsville, AL, USAShakhnoza S. AzimovaLaboratory of the Chemistry of GlycosidesInstitute of the Chemistry of Plant Substances, Tashkent, UzbekistanMichaël WinkDepartment of Biology, Heidelberg University, Institute of Pharmacy and Molecular Biotechnology, Heidelberg, Germany

Natural Product Researchjournal2016en

ABI

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 fromS. 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).

Topics

Flavonoids in Medical Research Phytochemistry and Biological Activities Medicinal plant effects and applications

Identifiers

DOI: 10.1080/14786419.2016.1222383

Citations and references

Cited by 5 20 references

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