Assessment of bactericidal activity of some lichen extracts by disc diffusion assay

Hengameh, Parizadeh and Rajkumar, G. H. (2017) Assessment of bactericidal activity of some lichen extracts by disc diffusion assay. International Journal of Drug Development and Research, 9 (1). ISSN 0975-9344

[img] Text (Full Text)
Assessment of Bactericidal Activity of some Lichen Extracts by Disc Diffusion Assay.pdf - Published Version
Restricted to Registered users only

Download (2MB) | Request a copy
Official URL:


In the presented study, thirty-two natural extracts obtained from lichen species; P. reticulatum, P. tinctorum, Herpothallon sp., H. leucomelos, R. celastri, Leptogium sp. and P. crinitum, were evaluated for their bactericidal activity against three gram positive and three gram negative human pathogens. The investigation was performed by agar-disc diffusion assay and bactericidal activity of each lichen extract was measured using zone of inhibition. It was observed that methanol lichen extracts had the maximum efficacy whereas hexane extracts had the least bactericidal potential. Overall, P. reticulatum found to be the most anti-bacterial effective species and C. subradiata was the least potent species. According to all the result, it was concluded that these lichen species can be studied further as great source of bactericidal agents due to their high potency as antibiotics in in vitro models.

Item Type: Article
Uncontrolled Keywords: Lichens; Bactericidal; Disc-diffusion; Natural extracts
Subjects: B Life Science > Microbiology
Divisions: Department of > Microbiology
Depositing User: C Swapna Library Assistant
Date Deposited: 19 Jun 2019 05:59
Last Modified: 19 Jun 2019 05:59

Actions (login required)

View Item View Item