polysccharopeptide

Are Polysaccharides Peptides? Polysaccharide peptide (PSP) is a protein-bound polysaccharide extracted from the edible mushroom Coriolus versicolor. How are polypeptides and polysaccharides different? Polysaccharides are carbohydrates, long chains of monosaccharides, made of carbon, hydrogen, and oxygen, often in a 1:2:1 ratio. Polypeptides are proteins, long chains of amino acids, made of carbon, hydrogen, oxygen, nitrogen,