“…This could be attributed to its higher total flavonoid content (69,034 mg/kg quercetin equivalent); higher flavonols (50,430 mg/kg quercetin equivalent) content compared to the total flavonoid (57,810 mg/kg quercetin equivalent) and total flavonols (8,710 mg/kg quercetin equivalent) of H. sabdariffa. Brachado et al (2003) identified six flavonoids in A. brasiliana leaf extract, out of which 3 inhibited lymphocyte proliferations. The high nitric oxide scavenging activity of the extracts suggests that the extracts be used in preventing inflammation, carcinomas and other diseases caused by nitric oxide radicals derived from cellular by-products as nitric oxide radical is known to play an important role in various inflammatory processes such as carcinomas, juvenile diabetes, multiple sclerosis, arthritis and ulcerative colitis (Hazra et al, 2008).…”