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Extraction and Optical Characterization of the Active Ingredient in Solanium Melongena Extract
Authors: A.L. Ujoatuonu, E.L. Efurumibe, P.I. Ekwo b, Efurumibe, J. Nwogu
Number of views: 243
In carrying out the experiment, first liquid extract was obtained from Solanium Melongena leaves using solvent extraction method at room temperature of 300K with acetone solvent. The liquid extract was concentrated to a certain degree using a rotary evaporator and the concentrated extracts were afterwards analyzed using a Hewlett-Packard 6890 gas chromatography mass spectrometer. Following additional analysis of the extract, it was observed that Solanium melongena extract contains 2, 3, 5, 6-tetraisopropylpyrazine (5.15 %), 6-octadecenoic acid (33.84 %), 1-(hydroxymethyl)-1, 2-ethanediyl ester (2.60 %) and stearic acid (20.68 %) as the active ingredients. The result of optical characterization using a Jenway 6405 UV-Visible spectrophotometer revealed that Solanium Melongena extract has optical band gap range from 1.10eV to 1.20eV.