Cov khoom yog nplua nuj nyob rau hauv mucopolysaccharides.Piv nrog rau lwm cov macromolecular collagen, nqaij qaib collagen hom ii yog yooj yim rau tib neeg lub cev zom, nqus thiab siv, thiab pab kom pob txha zoo thiab txhim kho pob txha.