| 超声法提取脂肪的研究 |
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| 引用本文： | 宋立华,金刚,李佶,林超,李云飞.超声法提取脂肪的研究[J].上海交通大学学报(农业科学版),2008,26(6):545-549. |
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| 作者姓名： | 宋立华 金刚 李佶 林超 李云飞 |
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| 作者单位： | 上海交通大学农业与生物学院,上海,200240 |
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| 基金项目： | 世博专项项目
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| 摘 要： | 以方便面为实验样品，研究超声法提取脂肪的工艺条件。实验首先以浸提时间、超声时间、料液比和提取次数为单因素，通过单因素实验确定上述工艺参数的范围；在此基础上，利用L9（3^4）正交实验优化超声提取脂肪的工艺条件。实验结果表明，各因素对脂肪提取率的影响程度是：提取次数〉浸提时间〉料液比〉超声时间，最优化的超声提取脂肪的工艺条件为：超声时间10min，料液比1：3，浸提时间1.5h，提取次数2次。实验所用的上述超声法与国标方法索氏法进行对比，结果表明，超声法提取脂肪较索氏法得率高，时间短、试剂用量少，回收率较高，且2种方法的精密度无差别：用超声法提取脂肪应根据样品特性选择适当的提取试剂。
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| 关 键 词： | 脂肪提取 超声法 索氏法 正交试验 |
Study on Ultrasonic Extraction Method of Fat in Food |
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| SONG Li-hu,JING Gang,LI Ji,LIN Chao,LI Yun-fei.Study on Ultrasonic Extraction Method of Fat in Food[J].Journal of Shanghai Jiaotong University (Agricultural Science),2008,26(6):545-549. |
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| Authors: | SONG Li-hu JING Gang LI Ji LIN Chao LI Yun-fei |
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| Institution: | SONG Li-hua,JING Gang,LI Ji,LIN Chao,LI Yun-fei(School of Agriculture , Biology,Shanghai Jiaotong University,Shanghai 200240,China) |
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| Abstract: | The aim of this paper is to establish an ultrasonic extracting method of fat in food.The single-factor are soaking time,ul-trasonic process time,sample-solvent ratio,and extracting times,respectively.Based upon the single-factor experiment,the optimal ultrasound extraction method was obtained through L9(34) orthogonal experiment.The results indicated that the yield of fat extraction was impacted by several factors,and impact degree were as followed:extracting times>soaking time>sample-solvent ratio>ultrason... |
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| Keywords: | fat extraction ultrasound method Soxhlet method orthogonal test |
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