Nigerian Usage of Bark in Phytomedicine

Taiye R. Fasola, A. Egunyomi


Some investigations on the use of bark in phytomedicine
were carried out. A comparison of the phytochemicals of
re-grown stem bark (after debarking) with those of older
bark of the same tree species, revealed that almost
all the phytochemicals screened were present in both old
and new bark; indicating that the newly-grown bark is also
medicinally useful. A taxonomic key that would facilitate
the identification of dry bark of 15 frequently used tree
species has been constructed. Seven fungal species, Aspergillus
niger, Penicillin digitatum, Rhizopus stolonifer,
Neurospora crassa, Fusarium flavus, Mucor mucedo and
Botryodiplodia theobrome were isolated from bark stored
in the market for 1 – 2 years. Some of these saprophytic
organisms of stored products may also cause diseases in
humans. The implications of these findings for the use of
bark in phytomedicine are discussed.

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