Identification of bioactive peptides in kashar cheese and its antioxidant activities

Authors : Zübeyde Öner, Ayşe Mine Sarıdağ

Pages : 44-49

Doi:10.31015/jaefs.18007

View : 11 | Download : 5

Publication Date : 2018-04-10

Article Type : Research Paper

Abstract :This study analyzed the peptide profile and antioxidant activity in commercially sourced Kashar cheese. The antioxidant activity of Kashar cheese was found to be 41.09 mM Trolox g−1. However, the antioxidant activity of its F3, F4, F5 and F14 fractions was found to be 920.726  mM  Trolox g−1,  545.544 mM  Trolox g−1 ,  783.864 mM Trolox g−1,  and 392.12 mM Trolox g−1, respectively. In Kashar cheese, the Tandem Mass Spectrometry insert ignore into journalissuearticles values(MS/MS); spectrum for the 875 g mol−1 m/z signal was matched to αs1-casein, and it showed that 1012 g mol−1 insert ignore into journalissuearticles values(875+137); histidine can be a part of 1140 insert ignore into journalissuearticles values(1012+128); glutamine amino acid. Peptide sequences were matched to 875:RPKHPIK-H-Q peptide 1012:RPKHPIK+H peptide and 1140:RPKHPIKH+Q peptide. It can be concluded that the peptide fractions of Kashar cheese demonstrated antioxidant activity.
Keywords : Bioactive peptides, Kashar cheese, Antioxidant activity