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