紫菜又名子菜、紫英,俗称索菜,为红藻门红毛菜科紫菜属中叶状藻体可食用的种群。紫菜藻体呈薄膜状,紫色、褐黄或褐绿色,由单层或双层细胞组成,形态随种类而异,边缘全缘或有锯齿,固着器为盘状,生长于浅海潮地带的岩石上。其种类较多,我国沿海主要产有圆紫菜、皱紫菜、长紫菜、坛 Seaweed, also known as sub-vegetables, purple English, commonly known as cable dishes, for the red algae door Redwood Division seaweed leafy algae edible population. The seaweed algal body is thin film, purple, brown yellow or brown green, composed of single or double layers of cells, the shape varies with species, the edge of the entire or serrated, fixer disk-shaped, growing in the shallow tidal zone of rock on. Its species are more, our main coastal production round seaweed, purple seaweed, long seaweed, altar