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Plant Science Today (PST)

Research Articles

Vol. 8 No. 2 (2021)

Crude drug analysis and elemental content of the leaves and stem bark of Adansonia digitata L. (Malvaceae), an indigenous Ghanaian medicinal plant

DOI
https://doi.org/10.14719/pst.2021.8.2.1027
Submitted
10 November 2020
Published
01-04-2021

Abstract

Adansonia digitata L. is a tree indigenous to Ghana and West Africa. It is traditionally used for medicinal, religious and nutritional purposes. Different parts of the plant are used traditionally for the treatment of diseases such as anaemia, malaria, asthma and diarrhoea among others. It is therefore necessary to provide standard parameters for identification and for the purpose of quality control. This study thus sought to investigate the pharmacognostic characteristics and elemental properties of the leaves and stem bark of A. digitata grown and used in Ghana. The macroscopic and microscopic characteristics, phytochemical, physicochemical, fluorescence and elemental properties of the leaf and stem bark were determined using standard protocols. The results of the study showed that the leaves of A. digitata were palmate compound and alternately arranged with stipules at each node. The outer bark was observed to be grey in color while the inner bark was pink to brown and laticiferous. Anomocytic stomata and stellate trichomes were also observed microscopically on the leaf surface. The powdered stem bark contained brachysclereids and prismatic calcium oxalate crystals. Saponins, tannins, flavonoids and alkaloids were detected in both leaf and stem bark. They additionally exhibited different fluorescence characters in various solvents. The plant contained major and minor nutritional elements in varying quantities. The results of this study can serve as reliable parameters for accurate identification and authentication of A. digitata L. hence ensuring quality.

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