Stem Bark Extract and Fraction of Persea americana (Mill.) Exhibits Bactericidal Activities against Strains of Bacillus cereus Associated with Food Poisoning
international journal of molecules, 55. p. 422-6
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journal of molecules
2020
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| Online pristup: | https://ir.oauife.edu.ng/handle/123456789/5055 |
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| author | Akinpelu, David Aiyegoro, Olayinka Ayobami Akinpelu, F. Oluseun Okoh, I. Anthony |
| author_facet | Akinpelu, David Aiyegoro, Olayinka Ayobami Akinpelu, F. Oluseun Okoh, I. Anthony |
| author_sort | Akinpelu, David |
| collection | DSpace |
| description | international journal of molecules, 55. p. 422-6 |
| format | Journal |
| id | oai:ir.oauife.edu.ng:123456789-5055 |
| institution | My University |
| language | English |
| publishDate | 2020 |
| publisher | journal of molecules |
| record_format | dspace |
| spelling | oai:ir.oauife.edu.ng:123456789-50552020-01-16T10:45:41Z Stem Bark Extract and Fraction of Persea americana (Mill.) Exhibits Bactericidal Activities against Strains of Bacillus cereus Associated with Food Poisoning Akinpelu, David Aiyegoro, Olayinka Ayobami Akinpelu, F. Oluseun Okoh, I. Anthony Persea americana Bacillus cereus antimicrobial potassium protein international journal of molecules, 55. p. 422-6 The study investigates the in vitro antibacterial potentials of stem bark extracts of Persea americana on strains of Bacillus cereus implicated in food poisoning. The crude stem bark extracts and butanolic fraction at a concentration of 25 mg/mL and 10 mg/mL, respectively, exhibited antibacterial activities against test isolates. The zones of inhibition exhibited by the crude extract and the fraction ranged between 10 mm and 26 mm, while the minimum inhibitory concentration values ranged between 0.78 and 5.00 mg/mL. The minimum bactericidal concentrations ranged between 3.12 mg/mL-12.5 mg/mL and 1.25-10 mg/mL for the extract and the fraction, respectively. The butanolic fraction killed 91.49% of the test isolates at a concentration of 2× MIC after 60 min of contact time, while a 100% killing was achieved after the test bacterial cells were exposed to the butanolic fraction at a concentration of 3× MIC after 90 min contact time. Intracellular protein and potassium ion leaked out of the test bacterial cells when exposed to certain concentrations of the fraction; this is an indication of bacterial cell wall disruptions by the extract's butanolic fraction and, thus, caused a biocidal effect on the cells, as evident in the killing rate test results. 2020-01-16T10:45:39Z 2020-01-16T10:45:39Z 2015-12 Journal Akinpelu david (2015). Stem Bark Extract and Fraction of Persea americana (Mill.) Exhibits Bactericidal Activities against Strains of Bacillus cereus Associated with Food Poisoning 1420-3049 https://ir.oauife.edu.ng/handle/123456789/5055 en text/plain journal of molecules |
| spellingShingle | Persea americana Bacillus cereus antimicrobial potassium protein Akinpelu, David Aiyegoro, Olayinka Ayobami Akinpelu, F. Oluseun Okoh, I. Anthony Stem Bark Extract and Fraction of Persea americana (Mill.) Exhibits Bactericidal Activities against Strains of Bacillus cereus Associated with Food Poisoning |
| title | Stem Bark Extract and Fraction of Persea americana (Mill.) Exhibits Bactericidal Activities against Strains of Bacillus cereus Associated with Food Poisoning |
| title_full | Stem Bark Extract and Fraction of Persea americana (Mill.) Exhibits Bactericidal Activities against Strains of Bacillus cereus Associated with Food Poisoning |
| title_fullStr | Stem Bark Extract and Fraction of Persea americana (Mill.) Exhibits Bactericidal Activities against Strains of Bacillus cereus Associated with Food Poisoning |
| title_full_unstemmed | Stem Bark Extract and Fraction of Persea americana (Mill.) Exhibits Bactericidal Activities against Strains of Bacillus cereus Associated with Food Poisoning |
| title_short | Stem Bark Extract and Fraction of Persea americana (Mill.) Exhibits Bactericidal Activities against Strains of Bacillus cereus Associated with Food Poisoning |
| title_sort | stem bark extract and fraction of persea americana mill exhibits bactericidal activities against strains of bacillus cereus associated with food poisoning |
| topic | Persea americana Bacillus cereus antimicrobial potassium protein |
| url | https://ir.oauife.edu.ng/handle/123456789/5055 |
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