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된장으로부터 Angiotensin Converting Enzyme 활성 저해물질의 정제
서형주(Hyung Joo Suh),서대방(Dae Bang Suh),정수현(Soo Hyun Chung),황종현(Jong Hyun Whang),성하진(Ha Jin Sung),양한철(Han Chul Yang) 한국응용생명화학회 1994 Applied Biological Chemistry (Appl Biol Chem) Vol.37 No.6
Seven commercial soybean paste were tested, for ACE inhibition effect. In purification of ACE inhibitor from No. 2 soybean paste, acetone fraction (50∼80%) had 57% protein yield with 92.8% ACE inhibition effect. Inhibitor was purified from acetone fraction of soybean paste by Sephadex G-25, Sephadex LH-20 and ODS column chromatography and HPLC. IC_(50) value of the purified inhibitor was 0.6 ㎎/㎖. The inhibitor showed the competitive inhibition patterns on ACE. Amino acid analysis showed that the peptides consist of Ala, Phe, Leu, Glu, Gly, Ser, and Asp.