title: Ultrasonic extraction of anthocyanin from Clitoria ternatea flowers using response surface methodology.
abstract: The ultrasonic extraction (UE) method of anthocyanin from Clitoria ternatea flowers using response surface methodology (RSM) was performed in this study. By using RSM, the objective is to optimise the extraction yield of anthocyanin from C. ternatea which is influenced by various factors, including the extraction temperature, time, ratio of solvent to solid and ultrasonic power. The empirical model was investigated by performing first-level optimisation in a two-level factorial design with Design Expert 7 software. In comparison with the conventional solvent extraction, UE showed a 246.48% better extraction yield and produced an anthocyanin extract with a radical scavenging activity of 68.48% at the optimised factors of 50°C, 150 min, 15 mL/g and 240 W.
authors.affiliation: a Faculty of Chemical and Natural Resources Engineering, Universiti Malaysia Pahang , Lebuhraya Tun Razak, 26300 Gambang , Pahang , Malaysia.
authors.forename: Fui Chin
authors.initials: FC
authors.lastname: Chong
authors.forename: Xian Fu
authors.initials: XF
authors.lastname: Gwee
mesh_terms: D000872:Anthocyanins / Q000302:isolation & purification*; D031292:Clitoria / Q000737:chemistry*; D035264:Flowers / Q000737:chemistry*; D010936:Plant Extracts / Q000737:chemistry*; D012997:Solvents; D013696:Temperature; D014465:Ultrasonics / Q000379:methods*
chemical_list: D000872:Anthocyanins; D010936:Plant Extracts; D012997:Solvents
keywords: Clitoria ternatea; anthocyanin; response surface methodology; ultrasonic extraction