the beta(1,4) glycosidic bond
#4 hydroxyl at the non-reducing end
Lactose and cellobiose both have beta(1-4) glycosidic bonds.
The only difference between them is the chiral configuration at carbon
#4 at the non-reducing end. Lactose is also known as milk sugar.
The linkage in lactose is one of the few beta-glycosides that can
be digested by animals. The inability to digest lactose by some adults
causes lactose intolerance. Cellobiose is a degredation product of