Chemical composition of the essential oil and fixed oil Bauhinia pentandra (Bong.) D. Dietr

Pharmacogn Mag. 2015 Oct;11(Suppl 2):S362-4. doi: 10.4103/0973-1296.166015.


Background: Bauhinia pentandrais popularly known as "mororó" and inhabits the Caatinga and Savannah biomes.

Objective: This paper reports the chemical composition of the essential and fatty oils of the leaves from B. pentandra.

Materials and methods: The essential oil was obtained by hydrodistillation and the fixed oil by extraction with hexane, followed by saponification with KOH/MeOH, and methylation using MeOH/HCl. The constituents were analyzed by gas chromatography-mass spectrometry.

Results: The major constituent of the essential oil was the phytol (58.78% ±8.51%), and of the fatty oil were palmitic (29.03%), stearic (28.58%) and linolenic (10.53%) acids.

Conclusion: Of the compounds identified in the essential oil, three are first reported in this species, and this is the first record of the chemical composition of the fixed oil.

Keywords: Bauhinia pentandra (Bong.) D. Dietr; Leguminosae; essential oil; fixed oil; gas chromatography-mass spectrometry.