oligosaccharides and polysaccharidespeptidoglycan polysaccharidepolysaccharides includebacterial polysaccharidesstructural polysaccharideso specific polysaccharidechitin polysaccharideprotein polysaccharidemushroom polysaccharidesstarch is a polysaccharideastragalus polysaccharideinulin polysaccharide