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