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Chemical constituents and antioxidant activity of essential oil from the stem of Lannea
acida
Department of Chemical Sciences,
College of Science and Information Technology
Tai Solarin University of Education, Ijagun, Ijebu Ode, Ogun state, Nigeria
September, 2021
ABSTRACT
The bark of Lannea acida is used as medicines for treatment of intestinal parasites, epilepsy and pregnancy
disorders by local communities in Nigeria. The essential oil fraction was extracted from the stem of Lannea acida
using hydrodistillation method. Gas chromatography mass spectrometer was used to determine the chemical
constituents in the essential oil. Linalool (11.6%), (+) -2- Bornanone (31.2%), Camphor (0.60%), α – Terpineol
(7.3%), Ascaridole glycol (3.9%), alpha copaene (0.82%), caryophyllene (6.12%), Germacrene (6.3%) and
isospathulenol (0.87%) were the constituents from the essential oil fraction from the stem of Lannae acida. 2,2
diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging activity was carried out on the essential oil fraction at
concentration of 1 mg/mL. The % radical scavenging activity of the essential oil is significant at 30.5 and
comparable to the standard drug ascorbic acid with % radical scavenging activity at 41.2 at the same concentration.
The presence of these compounds could make Lannae acida a potential source of natural substances that could be
used in pharmaceutical industries.
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