ABSTRACT
The leaves, stem, flowers and fruits of Azadiracta indica .A Juss. which have some medicinal applications were investigated. Phytochemical analysis gave positive results for steroids, triterpinoids, reducing sugars, sugars, alkaloids, phenolic compounds, flavonoids and tannins. The crude methanol extracts showed growth inhibitory effects on Xanthomonas campestris. The methanol extract of the leaves and fruits showed significant inhibitory effect when compared with positive controls, neomycin and kanamycin respectively. The stem and flowers extracts show marked antibacterial activity. Among these samples, the MIC value of leaves and fruits determined by serial dilution technique was found to be 32μg/ml and 64μg/ml against Xanthomonas campestris respectively.
ABSTRACT
The flowers of a few medicinal plants such as Calotropis gigantea, Caesalpinia pulcherrima, Cassia auriculata, Azadiracta indica, Catharanthus roseus and Nerium oleander were collected, air dried, pulverized and subjected to methanol extraction. Methanol extracts were screened phytochemically for its chemical components. This revealed the presence of steroids, reducing sugars, triterpenoids, sugars, alkaloids, phenolic compounds, flavonoids, catechins, saponins, tannins, anthroquinons and amino acids. This study provides some scientific bases for the use of theses flowers as a remedy for some infectious diseases in folkloric medicine. The phytochemicals observed could be attributed to the presence of some of the active compounds which will be used for the treatment of various diseases.
ABSTRACT
The leaves, stem, flowers and fruits of Datura metel Linn. which have some medicinal applications were investigated. Phytochemical analysis gave positive results for steroids, triterpinoids, reducing sugars, sugars, alkaloids, phenolic compounds, flavonoids and tannins. The crude methanol extracts showed growth inhibitory effects on Xanthomonas campestris. The methanol extract of the leaves and flowers showed significant inhibitory effect when compared with positive controls, neomycin and kanamycin respectively. The stem and fruits extracts did not show marked antibacterial activity.