Fremgangsmate ved ekstraksjon, opprenskning og enzymatisk modifisering av soya 7S-globulin alfa-subenheten, slik modifisert subenhet samt anvendelse derav for fremstilling av hypokolesterolemiserende middel som farmasoytisk sammensetning eller matvaresupplement

摘要

A process for the extraction, purification and enzymatic modification of &bgr;-conglycinin α′ subunit, wherein &bgr;-conglycinin is selectively extracted from ground, defatted soy, then precipitated by treatment with aqueous ethanol; the enriched fraction is then subjected to Metal Affinity Chromatography (MAC) in denaturant conditions to obtain the α′ subunit, which is treated with chymotrypsin, then subjected to a further MAC to recover the amino-terminal region of this polypeptide (MW 28,000 Da).