Antimicrobial Property of Extracted Wrightia Antidysenterica (White Angel)Bark against Salmonella Typhimurium (Salmonella) Bacteria

Abstract

Salmonella is a major pathogen that can result to deadly food borne illness. It is a facultative anaerobic bacterium that poses as a microbial hazard in animal feed. The control of Salmonellain food involves the use of harmful chemical compounds. In view of this, the plant extract from Wrıghtıa antıdysenterıcabark(Whıte Angel) has been used to observe for its antimicrobial property against Salmonella Tryphimurium using Mueller-Hinton agar (MHA) agar for disc diffusion technique. An antibiotic, Amikacin 30 μg was used as a positive control. The samples, Wrıghtıa antıdysenterıcabark(Whıte Angel) extract 100 % and 50 % produced partial inhibitory activity with mild reactivity with a total mean zone of inhibition of 10.00 mm against Salmonella tryphimurium. However, the positive control Amikacin 30 μg produced complete inhibitory activity with moderate reactivity and a total mean zone of inhibition of 15.33 mm against the test organism. The negative control showed noinhibitory activity and no reactivity against Salmonella tryphimurium. The inhibitory activity of Wrıghtıa antıdysenterıcabark(Whıte Angel) extract had a clarity scale of 1 to describe a zone of almost complete inhibition and the positive control Amikacin 30 μg had a clarity scale of 0 to describe a zone of complete inhibition of growth against Salmonella tryphimurium. On the basis of the present findings, Wrıghtıa antıdysenterıcabark(Whıte Angel) can inhibit antimicrobial activity against Salmonella tryphimurium. Incorporating the extract in or onto food manufacturing processes can be effective against foodborne pathogen, especially Salmonella species.