Isolation of {TAIL ~ pectin} from plant cell walls is achieved by breaking up the gel structure, usually stabilized by calcium cations, to solubilize large aggregates of {HEAD ~ pectin} 
Isolation of { TAIL ~ pectin } from plant cell walls is achieved by breaking up the gel structure , usually stabilized by calcium cations , to solubilize large aggregates of { HEAD ~ pectin }
OTH OTH 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 OTH OTH HEAD HEAD HEAD HEAD HEAD