| 三氯化铁滴定法测定植酸含量方法的优化及改进研究 |
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| 引用本文： | 王国蓉,万文贵,王 丽,肖安红. 三氯化铁滴定法测定植酸含量方法的优化及改进研究[J]. 食品科学, 2009, 30(10): 188-190. DOI: 10.7506/spkx1002-6630-200910041 |
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| 作者姓名： | 王国蓉 万文贵 王 丽 肖安红 |
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| 作者单位： | 1.武汉工业学院食品科学与工程学院 2. 湖北省农产品加工与转化重点实验室 |
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| 基金项目： | 武汉工业学院2007～2008 学年度校立大学生科研项目；湖北省自然科学基金重点项目(2008CDA077) |
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| 摘 要： | 以麦麸为材料、采用超声波技术对植酸测定方法中的三氯化铁滴定法进行优化及改进研究。通过单因素和正交试验，得到植酸超声浸提最佳条件，即采用0.8mol/L 稀盐酸溶液、在700W、20～25kHz 超声波处理15min后，50℃水浴浸提1.5h。从而建立一种快速、简便、廉价的三氯化铁滴定法测定植酸含量的方法。与无超声处理比较，该方法大大缩短了浸提时间，由5h 缩短到1.5h，而植酸含量由5.5049% 提高到6.6341%。
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| 关 键 词： | 植酸浸提 超声波 三氯化铁滴定法 |
| 收稿时间： | 2008-07-15 |
Optimization of Ultrasonic-assisted Extraction Conditions for Determination of Phytic Acid in Wheat Bran by FeCl3 Titration Method |
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| WANG Guo-rong,WAN Wen-gui,WANG Li,XIAO An-hong. Optimization of Ultrasonic-assisted Extraction Conditions for Determination of Phytic Acid in Wheat Bran by FeCl3 Titration Method[J]. Food Science, 2009, 30(10): 188-190. DOI: 10.7506/spkx1002-6630-200910041 |
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| Authors: | WANG Guo-rong WAN Wen-gui WANG Li XIAO An-hong |
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| Affiliation: | (1. College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, China；2. Hubei Key Laboratory for Processing and Transformation of Agricultural Product, Wuhan 430023, China) |
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| Abstract: | In order to determine phytic acid content in wheat bran, it was extracted with hydrochloric acid under the assistance of ultrasonic. The extraction conditions of phytic acid were optimized through single-factor and orthogonal tests. The results showed that the best extraction process was as follows: extracting wheat bran with 0.8 mol/L hydrochloric acid in 50 ℃ water bath for 1.5 h under the assistance of ultrasonic treatment at 700 W and 20 to 25 kHz for 15 min. Compared with non-ultrasonic method, the extraction time was shortened from 5 h to 1.5 h, while the phytic acid content was promoted from 5.5049% to 6.6341%. |
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| Keywords: | phytic acid extraction ultrasonic FeCl3 titration method |
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