A day, when mom is cutting potato, see outside colour of sky is very dark, run to the balcony to receive the dress, come back to look, became red unexpectedly tomato patch. Is this why? I am interested very immediately, open computer to get online immediately checked.
一天，妈妈在切土豆的时候，看到外面天色很暗，便跑到阳台去收衣服，回来一看，土豆竟变成了红色。这是为什么呢？我顿时十分感兴趣，马上打开电脑上网查了起来。
Search ah search, find a reason eventually! Many starch is contained in original potato, these starch if air of bring into contact with, can oxidize, oxidation hind can become angry. And, after potato expurgation skin, the phenol in plant cell kind material falls in the action with enzymatic phenol, with air medium oxidation closes, produced many Kun kind material. Newborn Kun kind material can make plant cell becomes quickly Brown, this is changed call brown of alimental enzymatic hurried to change
找啊找，终于找到原因了！原来土豆中含有大量的淀粉，这些淀粉如果接触到空气，便会氧化，氧化后就会变色。而且，当土豆削去皮后，植物细胞中的酚类物质便在酚酶的作用下，与空气中的氧化合，产生了大量的醌类物质。新生的醌类物质能使植物细胞迅速的变成褐色，这化称为食物的酶促褐变
After knowing this reason, I thought to rise again. So how to want ability to won't become angry tomato patch? My again and again reads an article, discovered two finally very crucial very important speech -- the oxygen in air and air. So, if be,be in water, can you still become red tomato patch? Be aimed at these two problems, I began a test. I immerse potato in cold boiled water. After passing 20 minutes. I see potato and did not become angry.
知道这个原因后，我又思考了起来。那么土豆要怎样才能不会变色呢？我反复地阅读文章，最后发现了两个很关键很重要的词——空气中的氧气和空气。那么，如果是在水中呢，土豆还会变成红色吗？针对这两个问题，我开始了实验。我把土豆浸泡在冷开水中。过二十分钟后。我看到土豆并没有变色。
Look, the ability in after be being cut only tomato patch, be being put in air will be erubescent! My knowledge grew greatly again!
看来，土豆只有在被切后放在空气中才会变红啊！我的知识又大大增长了！