Thin Layer Chromatographic Identification of Constituents of Methanolic Extracts of Gmelina Arborea Leaf
Student: Azeezat Omowumi Opamakinde (Project, 2025)
Department of Applied Chemistry
Osun State Polytechnic, Iree, Osun State
Abstract
This study investigated the phytochemical composition of Gmelina arborea leaves through Thin Layer Chromatography (TLC) analysis of its methanol extract. The analysis revealed the presence of several bioactive compounds with distinct Rf values: flavonoids (Rf 0.5–0.6) showed fluorescent spots under UV light (254 nm & 366 nm), alkaloids (Rf0.3–0.4) exhibited orange-brown spots after application of Dragendorff’s reagent, phenolic compounds (Rf 0.4–0.5) displayed dark spots upon treatment with ferric chloride, and glycosides (Rf 0.2–0.3) formed light brown to yellow spots under UV light and iodine vapor. These findings confirm the presence of key therapeutic compounds in Gmelina arborea leaves, which have been linked to antioxidant, antimicrobial, anti-inflammatory, and anticancer properties in other studies. The results suggest that Gmelina arborea is a valuable source of bioactive compounds with medicinal potential. Further research, including the isolation and clinical evaluation of these compounds, is recommended to explore their full therapeutic potential and safety profiles.
Keywords
For the full publication, please contact the author directly at: azeezatopamakinde024@gmail.com
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- Covenant Polytechnic, Aba, Abia State 1
- Covenant University, Canaan Land, Ota, Ogun State 4
- Crawford University of Apostolic Faith Mission Faith City, Igbesa, Ogun State 2
- Crescent University, Abeokuta, Ogun State 1
- Cross Rivers University of Technology, Calabar, Cross Rivers State 142
- Delta State Polytechnic, Ogwashi-Uku, Delta State 11
- Delta State Polytechnic, Otefe, Delta State 13
- Delta State University, Abraka, Delta State 139
- Ebonyi State University, Abakaliki, Ebonyi State 17
- Edo University, Iyamho, Edo State 10