PHYTOCHEMICAL ANALYSIS AND ANTIMICROBIAL PROPERTIES OF CRUDE EXTRACTS OF Vernonia amygdalina Del. ON MICROBIAL ISOLATES IMPLICATED IN TOMATO PASTE SPOILAGE
The antimicrobial activities and preliminary phytochemical screening of crude aqueous extract of Vernonia amygdalina Del. was carried out against isolates obtained from spoilt tomato paste which included Escherichia coli, Pseudomonas aeruginosa, Micrococcus spp, Acinetobacter spp, Lactobacillus spp, Aspergillus spp, Rhizopus spp and Penicillium spp. The extract exhibited antibacterial and antifungal activity against the test organisms. The phytochemical screening of Vernonia amygdalina showed the presence of tannins, cardiac glycosides, saponins, flavonoids, steroids, terpenes, anthraquinones and alkaloids. V. amydalina exhibited antimicrobial action action against test organisms judged by their various zones of inhibition; P. aeruginosa (9.50mm), Micrococcus spp (16.50mm), Escherichia coli. (12.33mm), Acinetobacter spp (10.33mm), Lactobacillus spp (13.50mm), Aspergillus spp (12.50mm), Rhizopus spp (10.33mm) and Penicillium spp (14.50mm). The crude extracts exhibited strong potency against the bacteria and fungi with Penicillium spp and Micrococcus spp being the most susceptible when compared to the control (Chloramphenicol). Since this crude extract was able to inhibit the growth of the organisms associated with tomato paste spoilage, it could as well be used for the preservation of tomato paste.
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ANDY, E (2020). PHYTOCHEMICAL ANALYSIS AND ANTIMICROBIAL PROPERTIES OF CRUDE EXTRACTS OF Vernonia amygdalina Del. ON MICROBIAL ISOLATES IMPLICATED IN TOMATO PASTE SPOILAGE. Research.skoola.com: Retrieved May 19, 2024, from https://research.skoola.com/work/view/phytochemical-analysis-and-antimicrobial-properties-of-crude-extracts-of-vernonia-amygdalina-del-on-microbial-isolates-implicated-in-tomato-paste-spoilage-2-1
EZE, ANDY. "PHYTOCHEMICAL ANALYSIS AND ANTIMICROBIAL PROPERTIES OF CRUDE EXTRACTS OF Vernonia amygdalina Del. ON MICROBIAL ISOLATES IMPLICATED IN TOMATO PASTE SPOILAGE" Research.skoola.com. Research.skoola.com, 23 Apr. 2020, https://research.skoola.com/work/view/phytochemical-analysis-and-antimicrobial-properties-of-crude-extracts-of-vernonia-amygdalina-del-on-microbial-isolates-implicated-in-tomato-paste-spoilage-2-1. Accessed 19 May. 2024.
EZE, ANDY. "PHYTOCHEMICAL ANALYSIS AND ANTIMICROBIAL PROPERTIES OF CRUDE EXTRACTS OF Vernonia amygdalina Del. ON MICROBIAL ISOLATES IMPLICATED IN TOMATO PASTE SPOILAGE". Research.skoola.com, Research.skoola.com, 23 Apr. 2020. Web. 19 May. 2024. < https://research.skoola.com/work/view/phytochemical-analysis-and-antimicrobial-properties-of-crude-extracts-of-vernonia-amygdalina-del-on-microbial-isolates-implicated-in-tomato-paste-spoilage-2-1 >.
EZE, ANDY. "PHYTOCHEMICAL ANALYSIS AND ANTIMICROBIAL PROPERTIES OF CRUDE EXTRACTS OF Vernonia amygdalina Del. ON MICROBIAL ISOLATES IMPLICATED IN TOMATO PASTE SPOILAGE" Research.skoola.com (2020). Accessed 19 May. 2024. https://research.skoola.com/work/view/phytochemical-analysis-and-antimicrobial-properties-of-crude-extracts-of-vernonia-amygdalina-del-on-microbial-isolates-implicated-in-tomato-paste-spoilage-2-1