| 紫甘薯中花青素提取工艺及测定方法研究 |
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| 引用本文： | 陈新,周宏,薛蒙伟.紫甘薯中花青素提取工艺及测定方法研究[J].南京晓庄学院学报,2010,26(6):57-61. |
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| 作者姓名： | 陈新 周宏 薛蒙伟 |
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| 作者单位： | 南京晓庄学院生物化工与环境工程学院,江苏南京211171 |
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| 摘 要： | 目的]优化微波辐射下紫甘薯中花青素的提取工艺和含量测定方法.方法]采用单因素实验,,确定最佳提取工艺;通过误差分析,对两种测定方法进行比较.结论]最佳提取条件是：盐酸水溶液与物料的液固比为20∶1、盐酸浓度为0.5%、微波辐射功率为700 W、提取温度为70℃、提取时间为6 m in;pH示差法比单一pH法测定结果稳定,准确度更高.
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| 关 键 词： | 紫甘薯 花青素 提取工艺 测定方法 |
A Study on the Extraction Process and Determination of Anthocyandin in Purple Sweet Potato |
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| CHEN Xin,ZHOU Hong,XUE Meng-wei.A Study on the Extraction Process and Determination of Anthocyandin in Purple Sweet Potato[J].Journal of Nanjing Xiaozhuang College,2010,26(6):57-61. |
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| Authors: | CHEN Xin ZHOU Hong XUE Meng-wei |
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| Institution: | (School of Biochemical and Environmental Engineering,Nanjing Xiaozhuang University,Nanjing 211171,Jiangsu) |
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| Abstract: | This study is to optimize the extraction process and determination of anthocyandin in purple sweet potato with microwave radiation.The optimum extraction process was determined with the single factor experiments,and two determination methods were compared through error analysis.It is concluded that the optimum extraction conditions were：the ratio of liquid to solid was 20：1,the concentration of hydrochloric acid was 0.5%,the microwave power was 700w,the temperature was 70℃,and the time was 6min;the pH differential method had higher accuracy and stability than the single pH method. |
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| Keywords: | purple sweet potato anthocyandin extraction methods determination methods |
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