{HEAD ~ Various grades} of pectin are commercially available in different degrees of methyl esterification and in {TAIL ~ different ranges} of molecular weights, i.e. different degrees of disaggregation 
{ HEAD ~ Various grades } of pectin are commercially available in different degrees of methyl esterification and in { TAIL ~ different ranges } of molecular weights , i.e. different degrees of disaggregation
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL REL REL OTH OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH