Methods for fractionating {HEAD ~ plant material} such as corn and {TAIL ~ wheat} are known in the art 
Methods for fractionating { HEAD ~ plant material } such as corn and { TAIL ~ wheat } are known in the art
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH