Figure 4. QCE (µg/mL) in Ixora coccinea and Ixora alba (leaf and flower) and the calibration curve of QCE (25-1000 µg/mL).

ICLEA: Ixora coccinea leaf ethyl acetate; ICFEA: Ixora coccinea flower ethyl acetate; ICFHA: Ixora coccinea flower hydroalcoholic; IALCE: Ixora alba leaf chloroform extract; IALHA: Ixora alba leaf hydroalcoholic; IAFEA: Ixora alba flower ethyl acetate; QCE: quercetin