The epithelial cells of the crop and the stomach show proteinase and non-specific esterase activity by histochemical tests, and show activity of three or four polysaccharide enzymes by test in vitro.
英
美
- 体外酶活性分析表明嗉囊和胃上皮细胞分别具有三种和四种植物多糖酶活性。