It is preferred to filter the raw material before treated with the column to remove {TAIL ~ any foreign substances}, The filtration means is not restricted to particular one and use may be preferably made of {HEAD ~ various means} widely used in the food industry such as screen filtration, diatomaceous earth filtration, precision filtration and ultrafiltration 
It is preferred to filter the raw material before treated with the column to remove { TAIL ~ any foreign substances } , The filtration means is not restricted to particular one and use may be preferably made of { HEAD ~ various means } widely used in the food industry such as screen filtration , diatomaceous earth filtration , precision filtration and ultrafiltration
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH