果皮,也就是果实的外壳或外皮。成熟的果皮一般分为外果皮、中果皮、内果皮三层。而平常生活中我们所说的果皮一般指的是外果皮。我们平时食用水果的时候,果皮当吃不当吃呢?由于果实类型的不同,三层果皮的变化很大。通常外果皮不肥厚,由1～2层细胞构成,它的结构特性与表皮相似,具角质层和气孔。当果实还没有成熟的时候,外果皮多含叶绿素,成熟以后,转为有色体,从而使果实具有不同的颜色。不同水果的中 Peel, which is the shell or skin of the fruit. Mature peel is generally divided into exocarp, mesocarp, endocarp three. And what we mean in everyday life is the pericarp. When we usually eat fruit, peel eat improper eat? Because of the different types of fruit, peel of the three great changes. Exocarp is usually not hypertrophic, composed of 1 to 2 layers of cells, its structural characteristics and the epidermis similar to the stratum corneum and stomata. When the fruit is not mature, the epicarp contains more chlorophyll and, after ripening, it turns into a colored body, so that the fruit has a different color. Different fruits