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53C15
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The chemical composition of the extract of the stem bark of Theobroma cacao and its biological activity is hereby studied. Dried pulverised stem bark extract of Theobroma cacao was batch extracted with ethanol. This crude ethanol extract was screened for the presence of plant chemicals: the result showed the presence of alkaloid, tannin, saponin, glycoside, phenol, flavonoid and carboxylic acid. Four human pathogens; Escherichia coli, Pseudomonas aeruginosa, Streptococcus pnemoniae and Staphylococcus aureus were used in the test for the biological activity and were discovered to be susceptible to the crude extract. The extract was acidified with concentrated hydrochloric acid (HCl) and extracted with chloroform (CHCl 3 ). The organic layer was basified with 1 M sodium hydroxide (NaOH) solution and the alkaline layer treated with HCl.
Nwokonkwo, D.C. 2015. "The Chemical Constituents and Biological Activities of Stem Bark Extract of Theobroma Cacao". Global Journal of Science Frontier Research - E: Marine Science GJSFR-E Volume 14 (GJSFR Volume 14 Issue E4).
Crossref Journal DOI 10.17406/GJSFR
Print ISSN 0975-5896
e-ISSN 2249-4626
v1.2
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Total Score: 104
Country: Nigeria
Subject: Global Journal of Science Frontier Research - E: Marine Science
Authors: Nwokonkwo, D.C, Okeke, G.N. (PhD/Dr. count: 0)
View Count (all-time): 401
Total Views (Real + Logic): 1781
Total Downloads (simulated): 108
Publish Date: 2015 01, Sat
Monthly Totals (Real + Logic):
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