《小学自然教学》1998年第9期上发表了王健老师的《唾液对淀粉有消化作用实验的探索》一文,读后十分赞赏作者这种大胆探索、勇于创新的钻研精神;但对文中所介绍的“简便方法”,笔者有一些不同的看法,愿与同行商榷。 我们知道,唾液对淀粉的消化作用,主要在于唾液中的淀粉酶可催化淀粉水解生成葡萄糖。淀粉遇碘显蓝色, In the 9th issue of “Nature Teaching in Primary Schools”, the article entitled “Experimental Research on Digestion of Starch by Saliva” was published on the 9th of 1998 by Wang Jian. After reading it, he praised the author for his bold explorations and brave innovations. However, Introduced the “easy way”, I have some different views, is willing to discuss with peers. We know that saliva digestion of starch, mainly in saliva amylase enzyme can catalyze the hydrolysis of starch to produce glucose. Starch in case of iodine was blue,