Antimicrobial and antioxidant activities of stem bark extracts of different ornamental trees [electronic resource].

Includes reference.

Aqueous, ethanol, methanol and acetone stem bark extracts from nine tree species; Pinus halepensis, Leucaenia leucocephala, Ficus sycomorus, Quercus ruber, Albizia lebbeck, Terminalia arjuna, Bauhinia variegate, Cassia fistula and Kegelia africana growing in Assiut, Egypt were investigated for their antimicrobial activity against three bacterial and three fungal species in vitro as well as their antioxidant activity using DPPH radical scavenging. Patterns of inhibition varied with the plant extract, the solvent used for extraction, and the organism tested. Acetone extract of K africana gave the maximum significant inhibitory effect against the three bacterial strains. Bacillus cereus was the most inhibited bacteria, followed by Erwinia carotovora.

Summary in Arabic.

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