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Phytochemical and
antibacterial properties of leaves of Alstonia scholaris
R. Br.
Khyade, M. S.* and Vaikos,
N. P.
Department of Botany, Dr. Babasaheb Ambedkar
Marathwada University, Aurangabad-431004 (MS), India.
*Corresponding author. E-mail:
mskhyade@rediffmail.com.
Accepted
19 August, 2008 |
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Phytochemical and antibacterial activity of leaves of
Alstonia scholaris R.Br. was investigated. The different
solvent extracts showed the presence of Iridoids, alkaloids,
coumarins, flavonoids, leucoanthocyanins, reducing sugars,
simple phenolics, steroids, saponins and tannins.
Antibacterial activity was tested against both Gram +ve and
-ve organisms. The methanol leaves extract exhibited
broad-spectrum antibacterial activity against tested
organisms. Maximum activity was exhibited against
Bacillus subtilis followed by Escherichia coli
and Staphylococcus aureus. Chloroform and acetone
leaf extracts exhibited lesser activity, while petroleum
ether extract showed no inhibition.
Key
words:
Alstonia scholaris, leaves, phytochemical,
antibacterial. |
