The concentrate is separated by centrifugation into a cell concentrate and {HEAD ~ a clarified broth} containing {TAIL ~ the aroma and flavor materials} 
containing
The concentrate is separated by centrifugation into a cell concentrate and { HEAD ~ a clarified broth } containing { TAIL ~ the aroma and flavor materials }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL