| 面团流变学特性检测仪器比对试验分析 |
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| 引用本文： | 魏益民,张波,关二旗,李韦瑾,严军辉.面团流变学特性检测仪器比对试验分析[J].中国农业科学,2010,43(20):4265-4270. |
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| 作者姓名： | 魏益民 张波 关二旗 李韦瑾 严军辉 |
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| 作者单位： | (中国农业科学院农产品加工研究所/农业部农产品加工与质量控制重点开放实验室) |
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| 基金项目： | 国家小麦产业技术体系建设专项，中央公益性行业科研专项 |
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| 摘 要： | 【目的】研究不同实验室粉质仪和拉伸仪测定面团流变学特性的准确度和精确度,探讨现有仪器设备存在的主要问题。【方法】以3种小麦面粉标准样品(强筋、中强筋和弱筋)为原料,以不同实验室的17台粉质仪和11台拉伸仪为比对仪器,分析不同实验室粉质仪和拉伸仪测定面团流变学特性的准确度和精确度。【结果】17台粉质仪器检测3种面粉的准确度约为72%,其中有13台粉质仪重复试验的精确度约为73%;不同粉质参数之间的准确度无显著差异,而精确度存在显著差异;不同面粉间粉质参数准确度无显著差异,而精确度有显著差异。11台拉伸仪检测3种面粉的准确度约为73%,其中有7台拉伸仪重复试验的精确度约为95%;不同拉伸参数之间准确度达到满意程度无显著差异,有问题和不满意的比例有显著差异,同时精确度无显著差异;不同面粉间拉伸参数准确度无显著差异,而精确度存在显著差异。【结论】粉质仪比对试验的结果说明,有1/4以上的仪器维护水平和技术队伍现状还不能完全满足国家技术标准对优质小麦检测、监测、评价的要求。
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| 关 键 词： | 拉伸仪 粉质仪 比对试验 准确度 精确度 |
| 收稿时间： | 2010-05-01; |
Comparisons of Instruments in Measuring Dough Rheological Properties |
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| WEI Yi-min,ZHANG Bo,GUAN Er-qi,LI Wei-jin,YAN Jun-hui.Comparisons of Instruments in Measuring Dough Rheological Properties[J].Scientia Agricultura Sinica,2010,43(20):4265-4270. |
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| Authors: | WEI Yi-min ZHANG Bo GUAN Er-qi LI Wei-jin YAN Jun-hui |
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| Affiliation: | (Institute of Agro-Food Science and Technology, Chinese Academy of Agricultural Sciences/Key Laboratory of Agricultural Product Processing and Quality Control, Ministry of Agriculture)
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| Abstract: | 【Objective】 The aim of the paper was to investigate the accuracy and precision of Farinographs and Extensographs in measured dough rheological properties from different laboratories. 【Method】 Seventeen Farinographs and 11 Extensographs were tested. Accuracy and precision of Farinographs and Extensographs in measured dough rheological properties were analyzed using three types of wheat flour such as high gluten wheat flour, medium and high gluten wheat flour, and weak gluten wheat flour. 【Result】 The accuracy of 72% Farinographs and the precision of 73% Farinographs were satisfied. There was no significant difference in accuracy of Farinographs among either Farinograph parameters or three types of wheat flour samples. However, the precision of Farinographs among both Farinograph parameters and three types of wheat flour samples was significantly different. The accuracy of 73% Extensographs and the precision of 95% Extensographs were satisfied. Accuracy and precision of Extensographs among extensograph parameters or accuracy of Dxtensographs among the three types of wheat flour samples were insignificantly different. However, the precision of Extensographs among the three types of wheat flour samples was significantly different. 【Conclusion】 The results of comparison show that more than 25% Farinographs can not meet the needs of high quality wheat detection, monitoring or evaluation in national technical standards. |
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| Keywords: | Farinograph Extensograph ring test accuracy precision |
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