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Assessment of the Inhibitory Activity of Peptide Extracts from Hanwoo Musculus Longissimus on Angiotensin I-Converting Enzyme
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 Title & Authors
Assessment of the Inhibitory Activity of Peptide Extracts from Hanwoo Musculus Longissimus on Angiotensin I-Converting Enzyme
Seol, Kuk-Hwan; Song, Ji-Hye; Prayad, Thirawong; Kim, Hyoun-Wook; Jang, Ae-Ra; Ham, Jun-Sang; Oh, Mi-Hwa; Kim, Dong-Hun; Lee, Moo-Ha;
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 Abstract
This study was performed to measure the angiotensin I-converting enzyme (ACE) inhibitory activity of peptide extracts derived from the enzymatic proteolysis of Hanwoo Musculus longissimus (M. longissimus) during cold storage. Thermolysin (80 ppm, w/w) and protease type XIII (100 ppm, w/w) were injected separately or in combination for the enzymatic proteolysis of sarcoplasmic and myofibrillar proteins prior to storage at (T1) or at (T2) in a chilling room for 9 days. Beef injected with thermolysin (E2) and thermolysin+protease type XIII (E3) showed a significantly higher degree of hydrolysis at both storage temperatures (p<0.05). During the storage period, T1E2 at day 6 and T1E3 at day 9 showed the strongest ACE inhibitory activity with sarcoplasmic and myofibrillar protein proteolysates. Macromolecules greater than 10,000 Da were removed by ultra filtration, and the filtrates were separated into fractions using gel filtration. Five and three major fractions were collected from S-T1E2-6 and M-T1E3-9 extracts, respectively, and the fraction of the S-T1E2-6 extracts showed the highest ACE inhibitory rate of .
 Keywords
angiotensin I-converting enzyme inhibitory activity;Hanwoo beef;thermolysin;protease type XIII;
 Language
English
 Cited by
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