title: Optimisation of pulsed ultrasonic and microwave-assisted extraction for curcuminoids by response surface methodology and kinetic study.
abstract: A response surface methodology and a kinetic study were used to optimise the pulsed ultrasonic and microwave techniques in the extraction of curcuminoids. Microwave-assisted extraction had the same efficiency as pulsed ultrasonic-assisted extraction, and both methods were better than continuous ultrasonic extraction of curcuminoids. For the pulsed ultrasonic-assisted extraction, the optimal conditions were 60% amplitude (AMP), 83% ethanol (v/v), 3/1 (s/s) pulsed duration/interval time and 10 min irradiation time. For the microwave-assisted extraction, the optimal conditions were 82% ethanol, 10% power level and 7 min of extraction time. Both methods used a 1:200 mass to solvent ratio.
authors.affiliation: School of Food Science and Engineering, Harbin Institute of Technology, 73, Huanghe Road, Harbin, Heilongjiang 150090, PR China; College of Pharmaceutical and Food Science, Tonghua Normal University, 950, Yucai Road, Tonghua, Jilin 134001, PR China.
authors.forename: Ming
authors.initials: M
authors.lastname: Li
authors.affiliation: Department of Bioresource Engineering, Macdonald Campus, McGill University, Ste-Anne-de-Bellevue, Québec H9X 3V9, Canada. Electronic address: michael.ngadi@mcgill.ca.
authors.forename: Michael O
authors.initials: MO
authors.lastname: Ngadi
authors.affiliation: School of Food Science and Engineering, Harbin Institute of Technology, 73, Huanghe Road, Harbin, Heilongjiang 150090, PR China. Electronic address: maying@hit.edu.cn.
authors.forename: Ying
authors.initials: Y
authors.lastname: Ma
mesh_terms: D008025:Ligases / Q000737:chemistry*; D008872:Microwaves / Q000627:therapeutic use*; D014465:Ultrasonics / Q000379:methods*
chemical_list: D008025:Ligases; C516709:curcuminoid synthase, Curcuma longa
keywords: Curcuminoids; Kinetic study; Microwave assisted extraction; Pulsed ultrasonic assisted extraction; Response surface methodology