The result shows that the GAG from Pteria penguin is 22.4%, Ruditapes philippinarum is 18.7%, Paphia gallus is 20.4%, so the content of GAG from Pteria penguin is more than other two shellfishes.

• 结果表明，企鹅珍珠贝的GAG质量分数为22.；35%25，菲律宾蛤仔为18