Document Type : Original Article
Authors
Department of Chemistry, College of Science, Mustansiriyah University, Baghdad-Iraq
Abstract
The present study was conducted to extract the vitamins, trace elements and phytochemical constituents of Ginkgo biloba leaves extracts using de-ionized water and ethanol (99%) as solvents, by Soxhlet extractor. The yield of the extract by the two solvents was (12.355gm/100gm) by deionized water and was (20.525 gm/100gm) by ethyl alcohol solvent. Different types of vitamins were characterized with the above extracts using High Performance Liquid Chromatography (HPLC). Vitamins A, K, E, D3, C, B1, and B2showed interesting results, for example, vitamin K is the most abundant in ethanol, whereas vitamin C is the most abundant in aqueous extract. These findings are motivated for deep research about the vitamins in Ginkgo biloba and their antioxidant relevance for therapeutic herbal medicine. Different metal ions, Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb, Se, and Zn, were measured using Atomic Absorption Spectrometer (AAS). The results of the qualitative detection of the two extracts indicated the existence of Alkaloids, Steroids, Terpenes, Phenols, Carbohydrates, Glycosides, Proteins, Saponins, Tannins, and Flavonoids. Phenols and flavonoids are the major compounds exist in the plant, which are thought to be responsible about the observed antioxidant activity
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