西红柿又叫番茄,它营养丰富,味道爽口,是许多小朋友都爱吃的蔬菜。西红柿一般是红色的。可是你们知道吗?它在成熟以前却是绿色的,那是因为在没成熟的西红柿里,含有大量的叶绿素。当西红柿慢慢进入成熟期,体内叶绿素逐渐减少,而番茄红素的含量不断增加,番茄红素是一种红色色素, Tomatoes, also known as tomatoes, it is nutritious, tasty and refreshing, is a lot of children love to eat vegetables. Tomatoes are generally red. But do you know that it is green before maturity, because it contains a lot of chlorophyll in immature tomatoes. When tomatoes slowly into maturity, the body gradually reduce chlorophyll, lycopene and the increasing content of lycopene is a red pigment,