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响应面法优化紫色马铃薯花青素超声波提取工艺.pdf

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江苏农业学报(JiangsuJ.of Agr.Sci.),2017,33(6):1379~1385 http:/ / www.jsnyxb.com 1379 武中庸,热孜万古力 ·赛买提,车敏娜,等. 响应面法优化紫色马铃薯花青素超声波提取工艺[J].江苏农业学报,2017,33 (6):1379-1385. doi:10.3969/ j.issn.1000-4440.2017.06.026 响应面法优化紫色马铃薯花青素超声波提取工艺 武中庸, 热孜万古力 ·赛买提, 车敏娜, 赫欣睿, 陈士恩 (西北民族大学生命科学与工程学院,甘肃 兰州 730124) 摘要: 在单因素试验的基础上,选取料液比、超声波功率、提取时间、提取温度为自变量,花青素含量为响应 值,采用响应面中心复合试验设计(CCD)方法优化了紫色马铃薯花青素超声波提取工艺. 结果表明:回归模型具 有高度显著性,回归方程对试验结果拟合较好,可用于花青素提取条件预测;最佳工艺条件为液料比28 ∶ 1、超声波 功率380 W、提取时间18min、提取温度47 ℃,在此条件下花青素提取率为602 mg/ kg. 关键词: 紫色马铃薯; 花青素; 超声波辅助提取; 响应面法 中图分类号: TS264.4 文献标识码: A 文章编号: 1000-4440(2017)06-1379-07 Optimizationofultrasonic-assistedextractionprocessforanthocyaninfrom purple potato by response surface analysis WU Zhong-yong, RE ZIWANGULI Sai-mai-ti, CHE Min-na, HE Xin-rui, CHEN Shi-en (College of Life Science and Engineering,NorthwestMinzu University,Lanzhou730124,China) Abstract: On the basis of single-factor test,the processing parameters,including solvent-material ratio,ultrasonic power,extraction timeandtemperaturewereinvestigated.Theextractionrateofpurplepotatoanthocyaninwaschosenasre- sponse value,and the ultrasonic-assisted extraction process for anthocyanin from purple potato was optimized by utilizing central compositedesign (CCD)designandresponsesurfaceanalysis.Theresultindicatedthatthemodelwashighly signif- icant,and the establishedregressionequationforpurplepotatoanthocyaninhadanexcellent goodnessoffit.Therefore,the anthocyanin from purple potato could be analyzed and predicted by the model. The optimum technological conditions were solvent-material ratioof28 ∶ 1,ultrasonicpowerof380W,extractiontimeof 18min,extractiontemperatureof47 ℃.Un- der these conditions,the extraction ratio of purple po
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