Abstract:Lonicera caerulea residue was used as an experimental material to investigate the optimized extraction parameters for anthocyanin via single factor analysis using orthogonal test.In order to explore the influence of various factors and conditions on the extraction efficiency of anthocyanin in the fruit residue，the pH differential method was used to determine the yield of anthocyanin extracted under different extraction conditions.The results indicated that the optimum extraction conditions for anthocyanin from Lonicera caerulea residue involved heating for 2 min using microwave，solid-liquid ratio of 1∶70 （g/mL），microwave power setting at 350 W，and ethanol volume fraction being 30%.Furthermore，the yield of anthocyanin using the optimized microwave-assisted extraction technology from Lonicera caerulea fruit residue was 9.37 mg/g.