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