山野菜采摘后，会发生萎蔫变软、失绿、脆性下降并纤维化。发生这一系列变化的原因是：①细胞壁间的原果胶被果胶酶分解后变为无粘性的果胶酸，使得山野菜硬度下降，失去脆性；果胶分解后，细胞壁的水透性增加，发生失水，使菜变软。②纤维素可与果胶结合形成复合纤维素，当果 After harvesting wild plants, wilting softens, chlorosis, brittle decline and fibrosis occurs. The reasons for this series of changes are as follows: ① The original pectin between cell walls is decomposed into pectic acid without pectin by pectinase, which makes the hardness of wild potherbs drop and loses the brittleness; after the pectin is decomposed, the water permeability of the cell wall Increase, dehydration, the dishes become soft. ② cellulose can be combined with pectin to form composite cellulose, when the fruit