Global J Res. Med. Plants & Indigen. Med. | Volume 2, Issue 5 | May 2013 | 357–364 Global Journal of Research on Medicinal Plants & Indigenous Medicine || GJRMI || ISSN 2277-4289 | www.gjrmi.com | International, Peer reviewed, Open access, Monthly Online Journal ANTIMICROBIAL EVALUATION OF CROTON ROXBURGHII BALAK. (EUPHORBIACEAE) STEM BARK Patel Esha 1 *, Padiya RH 2 , Acharya RN 3 1 Ph.D. Scholar, Dept. of Dravyaguna, Institute for Postgraduate Teaching and Research in Ayurveda, Gujarat Ayurved University, Jamnagar, Gujarat – 361 008, India. 2 Ph.D. Scholar, Dept. of Dravyaguna, Institute for Postgraduate Teaching and Research in Ayurveda, Gujarat Ayurved University, Jamnagar, Gujarat – 361 008, India. 3 Associate Professor, Dept. of Dravyaguna, Institute for Postgraduate Teaching and Research in Ayurveda, Gujarat Ayurved University, Jamnagar, Gujarat – 361 008, India. *Corresponding Author: Email: esha.ayupharma@gmail.com Received: 26/02/2013; Revised: 10/04/2013; Accepted: 15/04/2013 ABSTRACT Antibacterial and anti fungal activity of Croton roxburghii Balak. (Euphorbiaceae) stem bark methanol extract against four pathogenic bacterial strains; two Gram positive (B.subtilis & S.aureus), two Gram negative (E.coli and K. pneumoniae), and two fungal strains (S. flavus & C.albicans), in different concentrations (5 μg/ml, 25 μg/ml, 50 μg/ml, 100 μg/ml, 250 μg/ml) was studied. A zone of inhibition of extract was compared with that of different standards like Streptomycin, Cifpodoxime and Gentamycin for antibacterial activity and Amphotericin, Fluconazole and Clotrimazole for antifungal activity. The test drug extract showed remarkable inhibition antibacterial and antifungal activities comparable with that of standard against the organisms tested. KEYWORDS: Antibacterial activity, antifungal activity, Croton roxburghii stem bark, methanol extract, Gandhamardana hills Research article Cite this article: Patel Esha, Padiya RH, Acharya RN (2013), ANTIMICROBIAL EVALUATION OF CROTON ROXBURGHII BALAK. (EUPHORBIACEAE) STEM BARK, Global J Res. Med. Plants & Indigen. Med., Volume 2(5): 357–364