褐藻酸

例句：

1. 1. Fucoidan is a natural polysaccharide found in brown algae.
   褐藻酸是一种存在于褐藻中的天然多糖。
2. 2. Fucoidan has been shown to have anti-inflammatory properties.
   研究表明，褐藻酸具有抗炎作用。
3. 3. Fucoidan is used in the food industry as a thickening agent.
   在食品工业中，褐藻酸用作增稠剂。