Cellulose is not broken due to beta anomerism at:
High-Yield Explanation
Anomerism Different -H and -OH orientation around the functional carbon. C1 is the functional carbon in glucose. Two types of Anomers are - Alpha (a) - at functional carbon, -OH is downwards Beta (b)- at functional carbon, -OH is upwards b-anomers can't be broken in body. Cellulose is made up of glucose joined by b 1-,4 glycosidic bond In glucose functional carbon is at C1 (Aldehyde). So, Cellulose is not broken due to b-anomerism at C1