江西农业学报2023,35(01):177~182ActaAgriculturaeJiangxiDOI:10.19386/j.cnki.jxnyxb.2023.01.028响应面法优化玉米皮中阿拉伯木聚糖超声提取工艺研究许维龙(高台县农产品质量监测检验中心,甘肃高台734300)摘要:为了提高玉米淀粉生产企业废弃物中阿拉伯木聚糖的回收率,增加副产品的经济效益,采用超声—微波辅助提取工艺对玉米淀粉生产废弃玉米皮中的阿拉伯木聚糖进行回收,在单因素试验基础上,结合响应面设计法(BBD)对提取时间(A)、微波功率(B)、提取液浓度(C)和液料比(D)等因素进行二次回归模拟。结果表明:单因素对阿拉伯木聚糖产率影响大小排序为C>B>D>A;各因素之间交互影响对阿拉伯木聚糖产率影响大小的排序为C×D>A×B>A×C>A×D>B×C>B×D;获得最优提取工艺的条件为提取时间30min,微波功率443W,提取液浓度0.29mol/L,液料比20.5∶1。经试验验证,该工艺条件下的阿拉伯木聚糖提取率为27.86%,与理论预测值的误差较小。该模型可行度较高,在玉米皮阿拉伯木聚糖的提取中具有推广应用价值。关键词:阿拉伯木聚糖;超声提取;微波提取;响应面法;玉米皮中图分类号:TQ914.1文献标志码:A文章编号:1001-8581(2023)01-0177-06OptimizationofUltrasonicExtractionofArabinoxylanfromCornHuskbyResponseSurfaceMethodologyXUWei-long(GaotaiMonitoringandInspectionCenterforAgriculturalProductsQuality,Gaotai734300,China)Abstract:Inordertoimprovetherecoveryrateofarabinoxylaninthewasteofcornstarchproductionenterprisesandincreasetheeconomicbenefitsofby-products.Theultrasonicmicrowave-assistedextractionprocesswasusedtorecoverarabinoxylanfromcornhuskdiscardedintheproductionofcornstarch.Onthebasisofsinglefactorexperiment,combinedwithresponsesurfacedesign(BBD),thefactorssuchasextractiontime(A),microwavepower(B),concentrationofextractionsolution(C)andliquidtomaterialratio(D)weresimulatedbyquadraticregression.TheresultsshowedthattheorderofinfluenceofsinglefactorontheyieldofarabinoxylanwasC>B>D>A,andtheorderofinfluenceofinteractionamongvariousfactorsontheyieldofarabinoxylanwasC×D>A×B>A×C>A×D>B×C>B×D.Theoptimalextractionprocesswasobtainedasfollows:extractiontime30min,microwavepower443W,optimalsolventconcentration0.29mol/L,and...