Published Paper Details:

Pteridophytes possess an important role in folklore medicine although neglected in modern days. These plants have been successfully used in different systems of medicines like Ayurvedic, Unani, Homeopathic and other systems of medicines. In view of literature review on these plants, the present study was focused on the antibacterial activity of Aleutitopteris bicolor, family Sinopteridaceae, in Doon valley, situated in foot hills of the Himalayas. Plant material was collected, dried and grinded out a powdered form which was then subjected to diffusion extraction using seven different solvent in the increasing order of their polarity. Different extract of the plants revealed its antibacterial activity against the studied pathogenic bacterial strains. Out of the seven extracts assayed the ethyl acetate extract was most active against four gram positive and one gram negative bacteria. Therefore, minimum inhibitory concentration (MIC) of the extract was determined against the selected bacteria showing zones of inhibition ? 10mm. The MIC for different strains ranges between 125mg/ml to 62.50mg/ml. So, it can be concluded that ethyl acetate extract of Aleuritopteris bicolor possess good antibacterial activity against bacterial strains that cause infection. Aleuritopteris bicolour can be recommended in future for various biological activities such as antibacterial, antioxidant, anti-inflammatory.