Optimization of microwave-assisted extraction of curcumin from turmeric by response surface methodology

The optimization of extraction technology of curcumin from turmeric with microwave-assisted method was examined by curcumin yield, using ethanol as extracting solvent based on response surface methodology.Results showed that the optimum microwave extraction parameters were:solid-liquid ratio of 1:43, microwave power for 540W, microwave treatment time for 30s and solvent 73% ethanol solution.Under these conditions, curcumin yield was 0.2045%.