Effect of pre-treatment on the generation of dipeptidyl peptidase-IV- and prolyl endopeptidase-inhibitory hydrolysates from bovine lung
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CitationLafarga, T., & Hayes, M. (2017). Effect of pre-treatment on the generation of dipeptidyl peptidase-IV- and prolyl endopeptidase-inhibitory hydrolysates from bovine lung, Irish Journal of Agricultural and Food Research, 56(1), 12-24. doi: https://doi.org/10.1515/ijafr-2017-0002
AbstractThe aim of this work was to study the effect of two different pre-treatments, high temperature (100 °C, 5 min) and high pressure (600 MPa, 3 min), on the potential of the enzymes papain, collagenase and Alcalase® to generate bioactive hydrolysates containing dipeptidyl peptidase-IV- (DPP-IV; EC 188.8.131.52) and prolyl endopeptidase- (PEP; EC 184.108.40.206) inhibitory peptides from bovine lung. Both pre-treatments resulted in an increase in the degree of hydrolysis over a 24 h period (P < 0.001) and significantly increased the DPP-IV- and PEP-inhibitory activities of the generated hydrolysates (P < 0.001). Generated hydrolysates included an Alcalase hydrolysate of pressure-treated bovine lung, which was the most active, and showed DPP-IV and PEP half-maximal inhibitory concentration (IC50) values of 1.43 ± 0.06 and 3.62 ± 0.07 mg/ mL, respectively. The major peptides contained in this hydrolysate were determined by liquid chromatography-tandem mass spectrometry, and results demonstrated that bovine lung is a good substrate for the release of bioactive peptides when proper pre-treatment and enzymatic treatment are applied.
FunderDepartment of Agriculture, Food and the Marine, Ireland; Teagasc Walsh Fellowship Programme
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