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小麦面粉中戊聚糖的化学分析测定法
THE CHEMICAL METHOD OF ANALYSIS OF PENTOSANS IN WHEAT FLOUR
【摘要】 将面粉试样与12%的盐酸溶液共沸,使样品中的戊聚糖水解,生成戊糖,戊糖脱水生成糠醛,再蒸馏出糠醛,并用四溴化法测定蒸馏出的糠醛含量,据此换算得出戊聚糖含量。
【Abstract】 The method utilized the hydrolysis of the pentosans to furfural by 1 2%boiling hydrochloric acid,then the furfural is distilled at a controlled rate .Through determinating the content of distilled furfural,the content of pentosan s can be calculated by a formula.The result is also reasonable.
- 【文献出处】 西部粮油科技 ,China Western Cereals & Oils Technology , 编辑部邮箱 ,2003年04期
- 【分类号】TS211.7
- 【被引频次】7
- 【下载频次】161