Volatile Components of the Essential Oil FromBauhinia ungulataL.

Abstract

Air-dried leaves of Bauhinia ungulata L. were submitted to volatile oil isolation by hydrodistillation to produce an oil in 0.007% yield. The oil obtained was examined by gas chromatography (GC-FID) and gas chromatography/ mass spectrometry (GC/MS). Thirteen compounds comprising 95.9% of the total peak area were identified. The main constituents identified were spathulenol (47.7%) and caryophyllene oxide (18.3%).

Chemical profile, antimicrobial activity, toxicity on Artemia salina and anti-acetylcholinesterase enzyme essential oil from Bauhinia ungulata L. (Fabaceae) leaves

“…The yield of essential oils of B. ungulata in this study was 0.066%, higher than that obtained by Gramosa et al (2009) who in their study developed this species in the Northeast, which was 0.007%. The yields of essential oils obtained from the genus Bauhinia varies between bauhinia rufa with 0.37% (Silva and Camara, 2014) and B. acuruana with 0.01% (Gois et al, 2011).…”

“…In Boa Vista, Roraima, Brazil compared to studies Gramosa et al (2009), the composition varies mainly in the major constituents. Secondly, according to Oliveira et al (1998), plant species, in general, may present variations in relation to the yield and chemical composition of essential oils according to the part of the plant studied as well as their interactions with the environment, climate, micro-organisms and also genetic factors.…”

“…It is observed so spathulenol presented itself as the main constituents for the essential oil of B. ungulata in studies of Gramosa et al, (2009), with a percentage of 47.7. However in the present study this compound presents a lesser amount (2.1%).…”

“…Secondly, according to Oliveira et al (1998), plant species, in general, may present variations in relation to the yield and chemical composition of essential oils according to the part of the plant studied as well as their interactions with the environment, climate, micro-organisms and also genetic factors. Gramosa et al (2009) identified 13 compounds, which represent 95.9% of the essential oil content, the majority were spathulenol (47.7%), caryophyllene oxide (18.3%), humulene epoxide II (5.2%), β-caryophyllene (4.2%), α-humulene (3.5%) and α-copaene (2.9%).…”

“…The essential oil from the leaves of another species, B. acurana, has as main constituents spathulenol, sesquiterpenes, epi-α-cardinol and caryophyllene oxide (Gois et al, 2011). The major constituents of essential oil from B. ungulata are spathulenol and caryophyllene oxide (Gramosa et al, 2009).…”