to address this point , the authors carried out the following chemical modifications on soluble monomeric collagen and preformed fibrillar collagen in parallel : 1 ) n-and o-acetylation , 2 ) esterification of the carboxyl groups , 3 ) succinylation of the free amino groups , 4 ) esterification of succinylated collagen .
C0969669
fibrillar collagen
C0009325
collagen