The effects of different extraction solvents of varying polarities on polyphenols of Orthosiphon stamineus and evaluation of the free radical-scavenging activity GA Akowuah, Z Ismail, I Norhayati, A Sadikun Food chemistry 93 (2), 311-317, 2005 | 444 | 2005 |
Sinensetin, eupatorin, 3′-hydroxy-5, 6, 7, 4′-tetramethoxyflavone and rosmarinic acid contents and antioxidative effect of Orthosiphon stamineus from Malaysia GA Akowuah, I Zhari, I Norhayati, A Sadikun, SM Khamsah Food chemistry 87 (4), 559-566, 2004 | 231 | 2004 |
Flavonoid identification and hypoglycaemic studies of the butanol fraction from Gynura procumbens GA Akowuah, A Sadikun, A Mariam Pharmaceutical Biology 40 (6), 405-410, 2002 | 150 | 2002 |
Toxicology evaluation of standardized methanol extract of Gynura procumbens MF Yam, A Sadikun, M Ahmad, GA Akowuah, MZ Asmawi Journal of ethnopharmacology 123 (2), 244-249, 2009 | 149 | 2009 |
HPLC and HPTLC densitometric determination of andrographolides and antioxidant potential of Andrographis paniculata GA Akowuah, I Zhari, I Norhayati, A Mariam Journal of Food Composition and Analysis 19 (2-3), 118-126, 2006 | 138 | 2006 |
The effect of extraction temperature on total phenols and antioxidant activity of Gynura procumbens leaf GA Akowuah, A Mariam, JH Chin Pharmacognosy Magazine 5 (17), 2009 | 99 | 2009 |
Antioxidant activity and phenolic content of Orthosiphon stamineus Benth from different geographic SM Khamsah, G Akowuah, I Zhari Journal of Sustainability Science and Management 1 (2), 14-20, 2006 | 85 | 2006 |
Absorption of andrographolides from Andrographis paniculata and its effect on CCl4-induced oxidative stress in rats GA Akowuah, I Zhari, A Mariam, MF Yam Food and chemical toxicology 47 (9), 2321-2326, 2009 | 67 | 2009 |
Analysis of urinary andrographolides and antioxidant status after oral administration of Andrographis paniculata leaf extract in rats GA Akowuah, I Zhari, A Mariam Food and chemical toxicology 46 (12), 3616-3620, 2008 | 60 | 2008 |
The Effectiveness of Rambutan (Nephelium lappaceum L.) Extract in Stabilization of Sunflower Oil under Accelerated Conditions WSC Mei, A Ismail, N Mohd. Esa, GA Akowuah, HC Wai, YH Seng Antioxidants 3 (2), 371-386, 2014 | 59 | 2014 |
Radical Scavenging Activity of Methanol Leaf Extracts of Orthosiphon stamineus. GA Akowuah, I Zhari, I Norhayati, A Sadikun Pharmaceutical Biology 42 (8), 629-635, 2005 | 53 | 2005 |
Acute oral toxicity study of Clinacanthus nutans in mice XW P'ng, GA Akowuah, JH Chin International Journal of Pharmaceutical Sciences and Research 3 (11), 4202, 2012 | 52 | 2012 |
Evaluation of the sub–acute oral toxic effect of methanol extract of Clinacanthus nutans leaves in rats XW P'ng, GA Akowuah, JH Chin Journal of Acute Disease 2 (1), 29-32, 2013 | 51 | 2013 |
Phytochemical analysis and antibacterial activity of methanolic extract of Clinacanthus nutans leaf HS Yang, TW Peng, P Madhavan, MSA Shukkoor, GA Akowuah International Journal of Drug Development and Research 5 (3), 349-355, 2013 | 50 | 2013 |
ATR-FTIR and Spectrometric Methods for the Assay of Crocin in Commercial Saffron Spices (Crocus savitus L.) FY Lee, TT Htar, GA Akowuah International Journal of Food Properties 18 (8), 1773-1783, 2015 | 44 | 2015 |
Safety assessment of standardised methanol extract of Cinnamomum burmannii M Ahmad, CP Lim, GA Akowuah, NN Ismail, MA Hashim, SY Hor, LF Ang, ... Phytomedicine 20 (12), 1124-1130, 2013 | 44 | 2013 |
The effect of extraction conditions on total phenolic content and free radical scavenging capacity of selected tropical fruits’ peel L Samuagam, CM Sia, GA Akowuah, PN Okechukwu, HS Yim Health and the Environmental Journal 4 (2), 80-102, 2013 | 41 | 2013 |
Effect of extraction temperature on stability of major polyphenols and antioxidant activity of Orthosiphon stamineus leaf GA Akowuah, I Zhari Journal of herbs, spices & medicinal plants 16 (3-4), 160-166, 2010 | 41 | 2010 |
Inhibitory effects of Cinnamomum burmannii Blume stem bark extract and trans-cinnamaldehyde on nasopharyngeal carcinoma cells; synergism with cisplatin M Daker, VY Lin, GA Akowuah, MF Yam, M Ahmad Experimental and therapeutic medicine 5 (6), 1701-1709, 2013 | 38 | 2013 |
Blood sugar lowering activity of Gynura procumbens leaf extracts. GA Akowuah, S Amirin, A Mariam, I Aminah | 31 | 2001 |