Patent ID: 11906491
Assignee: HONG KONG BAPTIST UNIVERSITY
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A method of identifying an animal hide gelatin in a sample, the method comprising:
providing a hydrolysate of the sample;
analyzing the hydrolysate of the sample using a mass spectroscopy method; and
detecting one or more peptide markers, wherein a donkey hide gelatin is identified when the one or more peptide markers have an observed mass to charge ratio (m/z) selected from the group consisting of: 518.2695±0.1 (DM1), 675.6632±0.1 (DM2), 761.3672±0.1 (DM3), 766.6952±0.1 (DM4), 774.0218±0.1 (DM5), 784.3392±0.1 (DM6), and 854.0603±0.1 (DM7);
or a pig hide gelatin is present when two or more peptide markers have an observed mass to charge ratio (m/z) selected from the group consisting of: 419.2446±0.1 (PM1), 490.5942±0.1 (PM2), 693.8432±0.1 (PM3), 713.6902±0.1 (PM4), 773.9237±0.1 (PM5), and 774.9121±0.2 (PM6).