Quercetin concentration and total flavonoid content of anti-atherosclerotic herbs using aluminum chloride colorimetric assay

Abstract

Atherosclerosis is plaque formation in the arteries which will further develop into plaque, narrowing and shocking the artery. Continuous plaque formation leads to acute and chronic inflammation and soon develop into atherosclerosis. A combination of herbs in form of drink, consist of tanjung leaves (Mimusops elengi L.), starfruit leaves (Averrhoa carambola L.), and temulawak (Curcuma xanthorrhiza R.) is empirically believed to be anti-atherosclerotic; because it contains quercetin that initiate anti-inflammatory activity. Quercetin concentration test was conducted using an aluminum chloride colorimetric assay with variations in particle size (simplicia, 60