E-ISSN 2063-5346
 

Research Article 
ECB. 2018; 7(7): 190-193


ANTIMICROBIAL ACTIVITIES OF COMPOUNDS ISOLATED FROM PYCNANTHUS ANGOLENSIS (WELW.) WARB AND BRYOPHYLLUM PINNATUM (LAM) OKEN

Olawale H. Oladimeji, Ngozi O. Onu.

Abstract
In the present study a semi-pure residue each from Pycnanthus angolensis (Welw.) Warb and Bryophyllum pinnatum (Lam) for the presence of biologically active compound(s) were investigated. This exercise led to two compounds whose identities have been established to be 1,6-dihydro-2-methyl-4-hydroxy-6-oxo-3-pyridine carboxylic acid ethyl ester (1,6-dihydro-2-methyl-4-hydroxy-6-oxo-3-nicotinic acid ethyl ester) (5-ethoxycarb, NG5-a) and 1-ethoxy-2-hydroxy-4-prophenylguaethol (vanitrope, KF-1a), respectively using MS and IR spectral techniques. NG-5a was proved to be bacteriostatic against Escherichia coli but recorded no activity against Staphylococcus aureus and Candida albicans. KF-1a recorded only minimal activity against S. aureus but demonstrated no activities against E. coli or C. albicans.

Key words: Pycnanthus angolensis; Bryophyllum pinnatum; chromatography; bioactivity;


 
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Pubmed Style

Olawale H. Oladimeji, Ngozi O. Onu. ANTIMICROBIAL ACTIVITIES OF COMPOUNDS ISOLATED FROM PYCNANTHUS ANGOLENSIS (WELW.) WARB AND BRYOPHYLLUM PINNATUM (LAM) OKEN. ECB. 2018; 7(7): 190-193.


Web Style

Olawale H. Oladimeji, Ngozi O. Onu. ANTIMICROBIAL ACTIVITIES OF COMPOUNDS ISOLATED FROM PYCNANTHUS ANGOLENSIS (WELW.) WARB AND BRYOPHYLLUM PINNATUM (LAM) OKEN. https://www.eurchembull.com/?mno=46305 [Access: August 09, 2022].


AMA (American Medical Association) Style

Olawale H. Oladimeji, Ngozi O. Onu. ANTIMICROBIAL ACTIVITIES OF COMPOUNDS ISOLATED FROM PYCNANTHUS ANGOLENSIS (WELW.) WARB AND BRYOPHYLLUM PINNATUM (LAM) OKEN. ECB. 2018; 7(7): 190-193.



Vancouver/ICMJE Style

Olawale H. Oladimeji, Ngozi O. Onu. ANTIMICROBIAL ACTIVITIES OF COMPOUNDS ISOLATED FROM PYCNANTHUS ANGOLENSIS (WELW.) WARB AND BRYOPHYLLUM PINNATUM (LAM) OKEN. ECB. (2018), [cited August 09, 2022]; 7(7): 190-193.



Harvard Style

Olawale H. Oladimeji, Ngozi O. Onu (2018) ANTIMICROBIAL ACTIVITIES OF COMPOUNDS ISOLATED FROM PYCNANTHUS ANGOLENSIS (WELW.) WARB AND BRYOPHYLLUM PINNATUM (LAM) OKEN. ECB, 7 (7), 190-193.



Turabian Style

Olawale H. Oladimeji, Ngozi O. Onu. 2018. ANTIMICROBIAL ACTIVITIES OF COMPOUNDS ISOLATED FROM PYCNANTHUS ANGOLENSIS (WELW.) WARB AND BRYOPHYLLUM PINNATUM (LAM) OKEN. European Chemical Bulletin, 7 (7), 190-193.



Chicago Style

Olawale H. Oladimeji, Ngozi O. Onu. "ANTIMICROBIAL ACTIVITIES OF COMPOUNDS ISOLATED FROM PYCNANTHUS ANGOLENSIS (WELW.) WARB AND BRYOPHYLLUM PINNATUM (LAM) OKEN." European Chemical Bulletin 7 (2018), 190-193.



MLA (The Modern Language Association) Style

Olawale H. Oladimeji, Ngozi O. Onu. "ANTIMICROBIAL ACTIVITIES OF COMPOUNDS ISOLATED FROM PYCNANTHUS ANGOLENSIS (WELW.) WARB AND BRYOPHYLLUM PINNATUM (LAM) OKEN." European Chemical Bulletin 7.7 (2018), 190-193. Print.



APA (American Psychological Association) Style

Olawale H. Oladimeji, Ngozi O. Onu (2018) ANTIMICROBIAL ACTIVITIES OF COMPOUNDS ISOLATED FROM PYCNANTHUS ANGOLENSIS (WELW.) WARB AND BRYOPHYLLUM PINNATUM (LAM) OKEN. European Chemical Bulletin, 7 (7), 190-193.