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R. Owusu-Apenten

Publications (5)

Antioxidant Activity of Curcumin and Neem (Azadirachta indica) Powders: Combination Studies with ALA Using MCF-7 Breast Cancer Cells

T. K. N. Cheung, P. Singh Nigam & R. Owusu-Apenten · Journal of Applied Life Sciences International · 2016

Introduction: Breast cancer is the most common cancer affecting women globally. The essential fatty acid a-Linolenic acid (ALA) and its oxidation products inhibit cancer cell proliferation. The effect of natural antioxidants on ALA anticancer effects has not been well characteriz...

Open access Research Article 10.9734/JALSI/2016/22273

Antioxidant, Anticancer and Antibacterial Activity of Withania somnifera Aqueous Root Extract

D. A. Barnes, R. Barlow, P. Singh Nigam & R. Owusu-Apenten · Journal of Advances in Biology & Biotechnology · 2015

Aims: To evaluate total antioxidant capacity, anticancer activity and antibacterial effects Withania somnifera aqueous-root extracts. Study Design: In vitro study. Place of Study: School of Biomedical Sciences, Ulster University, UK. Methodology: Total antioxidant capacity (TAC)...

Open access Research Article 10.9734/JABB/2016/22523

Manuka Honey-induced Cytotoxicity against MCF7 Breast Cancer Cells is Correlated to Total Phenol Content and Antioxidant Power

I. Portokalakis, H. I. Mohd Yusof, D. F. Ghanotakis, P. Singh Nigam & R. Owusu-Apenten · Journal of Advances in Biology & Biotechnology · 2016

Aims: To investigate the relations between total polyphenols content, antioxidant power and Manuka honey cytotoxicity towards MCF-7 cells. Study Design: In vitro study. Place and Duration of Study: Department of Chemistry, University of Crete in partnership with the School of Bio...

Open access Research Article 10.9734/JABB/2016/27899

Antioxidant, Anticancer and Antimicrobial, Effects of Rubia cordifolia Aqueous Root Extract

R. Barlow, D. Barnes, A. Campbell, P. Singh Nigam & R. Owusu-Apenten · Journal of Advances in Biology & Biotechnology · 2015

Aims: To evaluate the total antioxidant capacity (TAC) of Rubia cordifolia root extracts, to test anticancer activity against MDA-MB-231 breast cancer cell lines, and to evaluate antimicrobial activity of the same extract versus six Gram-positive and negative bacteria. Study Desi...

Open access Research Article 10.9734/JABB/2016/22625

Rapid Colorimetric Determination of Methylglyoxal Equivalents for Manuka Honey

T. H. Kwok, G. Kirkpatrick, H. I. Mohd Yusof, I. Portokalakis, P. S. Nigam & R. Owusu-Apenten · Journal of Advances in Biology & Biotechnology · 2016

Aims: Realization of a rapid colorimetric assay for monitoring levels of methylglyoxal and other dicarbonyl compounds from Manuka honey. Methods: N-acetyl cysteine (NAC) and 2, 4-dinitrophenylhydrazine (DNPH) were adopted as reagents for methylglyoxal colorimetric analysis of hon...

Open access Research Article 10.9734/JABB/2016/26592