Polysaccharides produce more than twelve molecules of monosaccharide units on hydrolysis. The molecular formula is (C₆H₁₀O₅)_n. Polysaccharides are classified into two types:

1. Homopolysaccharides: Polymers with similar monosaccharide units
2. Heteropolysaccharides: Polymers of different monosaccharide units or their derivatives, for example, mucopolysaccharides