According to the result showed at 280nm and at 490nm , in the comparison of whether protein absorption top and sugar quantity top overlapped , glycoproteins would be detected preparatorily , and as a result , tubes in two distinct areas had glycoproteins by this method . proteins were precipitated with trichloroaceticacid and with cold acetone , and glycoprotein was determined from sds - gel 再从各收集管的收集液中，用三氯乙酸沉淀蛋白法、冷丙酮沉淀蛋白法相结合浓缩、制备蛋白样品，进行sds ? page ，对sds胶进行pas糖链染色鉴定糖蛋白，并从茶树叶分级蛋白中准确地鉴定出两个区域的收集管中含有多种糖蛋白。
