超声辅助复合酶法提取柑橘皮不溶性膳食纤维工艺优化及品质对比OA

[Objective]In order to improve the extraction rate of Citrus Peel Insoluble Dietary Fiber(CIDF),its dietary fibre extraction process was optimized.[Method]The CIDF was extracted from citrus peels by on ultrasound-assisted enzymatic method,and the factors of the extraction process were optimised by the design of a one-way test and response surface test,and the optimal process parameters were verified,and the qualities of the CIDF obtained by different extraction methods were compared comprehensively.[Result]The optimal process parameters for CIDF extraction by ultrasound-assisted composite enzyme method were:material-liquid ratio of 1:30,composite enzyme ratio of 1:2,ultrasound time of 42 min,and ultrasound temperature of 36℃,under which the validation test was carried out,and the extraction rate of CIDF was as high as 70.40%,which was 64.41%higher than that of the traditional composite enzyme method,solubility by 17.41%,glucose adsorp-tion capacity by 13.47%,and cholesterol absorption performance by 30.57%.[Conclusion]This study optimized the extraction conditions of dietary fibre from citrus peels,which could provide theoretical reference for the extraction of high quality CIDF and high value utilization of citrus peels.