Gabriel Akyirem Akowuah

The effects of different extraction solvents of varying polarities on polyphenols of Orthosiphon stamineus and evaluation of the free radical-scavenging activity

Gabriel Akyirem Akowuah, Zhari Ismail, I. Norhayati et al. · Food Chemistry · 2004 · 300 citations

Solvent Extraction, Polyphenolics, Free Radical-scavenging Activity +12

Sinensetin, eupatorin, 3′-hydroxy-5, 6, 7, 4′-tetramethoxyflavone and rosmarinic acid contents and antioxidative effect of Orthosiphon stamineus from Malaysia

Gabriel Akyirem Akowuah, I. Norhayati, Amirin Sadikun et al. · Food Chemistry · 2004 · 166 citations

Food Bioactive Compound, Antioxidative Effect, Pharmacology +6

Toxicology evaluation of standardized methanol extract of Gynura procumbens

Rosidah Rosidah Rosidah, Mun Fei Yam, Amirin Sadikun et al. · Journal of Ethnopharmacology · 2009 · 132 citations

Medicine, Herb-drug Interaction, Toxicology +4

HPLC and HPTLC densitometric determination of andrographolides and antioxidant potential of Andrographis paniculata

Gabriel Akyirem Akowuah, I. Norhayati · Journal of Food Composition and Analysis · 2005 · 99 citations

Polyphenolics, Biochemistry, Botany +11

Flavonoid Identification and Hypoglycaemic Studies of the Butanol Fraction from Gynura procumbens

Gabriel Akyirem Akowuah, Amirin Sadikun, A Mariam · Pharmaceutical Biology · 2002 · 91 citations

Nutraceutical Ingredient, Polyphenolics, Oxidative Stress +16