问题 单项选择题

属于可溶性膳食纤维的是()。

A.阿拉伯胶

B.戊聚糖

C.阿拉伯木糖

D.半乳糖醛酸

E.半乳聚糖

答案

参考答案:A

解析:可溶性膳食纤维是指既可溶于水,又可以吸水膨胀并能被大肠中微生物酵解的一类纤维。比如果胶和阿拉伯胶、瓜拉胶这样的树胶。

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