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花之所以色彩动人 ,除了在花瓣的细胞中含有叶绿素、胡萝卜素外 ,还有一种无色的花青素。花青素是一种有机色素 ,可称得上是“魔术大师” ,它在酸性溶液里是红色 ,在碱性溶液里变为蓝色 ,在中性溶液里又变为紫色。由于花青素的这种惊人本领 ,不仅能使许多鲜花色彩斑斓 ,而且还
The reason why the color of flowers is moving, in addition to the cells in the petals contain chlorophyll, carotene, there is a colorless anthocyanins. Anthocyanin is an organic pigment, which can be referred to as the “magician”. It is red in acidic solution, blue in alkaline solution, and purple in neutral solution. Because of this amazing ability of anthocyanins, not only can make many flowers colorful, but also