Beta (b) Anomer

Beta (b) Anomer Definition:

An anomer as itself denoted a cyclic saccharide. 
Beta anomer 
is used to refer to a cyclic hemiacetal of an aldose, in which the hydroxyl group at the anomeric position is cis to the CH2OH group.

Beta (b) Anomer Explained:

The formation of the hemiacital is unfavorable, and thus, when the aldehyde and hydroxyl group are placed together, a cyclic hemiacital is formed. The cyclic form is much more favorable because ring compounds are strain-free.