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