This is made by adding ethanol to {HEAD ~ the cooled supernatant liquid} under cooling and at {TAIL ~ a pH} of 6.8 7.2, preferably 7.0 
at
This is made by adding ethanol to { HEAD ~ the cooled supernatant liquid } under cooling and at { TAIL ~ a pH } of 6.8 7.2 , preferably 7.0
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH