The Shelf Life of Milk—A Novel Concept for the Identification of Marker Peptides Using Multivariate Analysis
Abstract
:1. Introduction
2. Materials and Methods
2.1. Reagents
2.2. Proteins
2.3. Sample Material
2.4. Sample Preparation and Extraction
2.4.1. Sample Preparation for the Model System
2.4.2. Sample Preparation ‘Milk’
2.4.3. Enzymatic Hydrolysis
2.5. Sensory Analysis
2.6. UPLC-IMS-QToF Analysis
2.7. Data Analysis and Statistics
2.8. Feature Identification
3. Results and Discussion
3.1. Sensory Analysis
3.2. Data Processing and Statistical Analysis
3.3. Feature Identification
4. Conclusions
Supplementary Materials
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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Feature Name | m/z | Charge | Retention Time [min] | CCS [Å] | ANOVA (p) | q Value |
---|---|---|---|---|---|---|
FT 01 | 655.9955 | 3 | 8.72 | 592.71 | 7.98 × 10−5 | 4.79 × 10−3 |
FT 02 | 885.4834 | 2 | 8.83 | 454.25 | 1.87 × 10−4 | 6.62 × 10−3 |
FT 03 | 639.3500 | 3 | 6.55 | 526.31 | 1.89 × 10−4 | 6.62 × 10−3 |
FT 04 | 635.8622 | 2 | 7.32 | 376.85 | 2.39 × 10−4 | 6.87 × 10−3 |
FT 05 | 634.3570 | 2 | 9.32 | 391.93 | 5.33 × 10−4 | 8.19 × 10−3 |
FT 06 | 821.3864 | 1 | 8.91 | 281.99 | 6.24 × 10−4 | 8.44 × 10−3 |
FT 07 | 858.4076 | 2 | 8.12 | 438.96 | 1.15 × 10−3 | 1.11 × 10−2 |
FT 08 | 697.0494 | 3 | 10.72 | 539.40 | 1.76 × 10−3 | 1.23 × 10−2 |
FT 09 | 761.7321 | 3 | 8.22 | 559.93 | 2.01 × 10−3 | 1.26 × 10−2 |
FT 10 | 443.0417 | 1 | 5.51 | 191.23 | 2.03 × 10−3 | 1.26 × 10−2 |
FT 11 | 684.3799 | 3 | 8.38 | 539.73 | 2.56 × 10−3 | 1.32 × 10−2 |
FT 12 | 412.7191 | 2 | 7.51 | 319.19 | 2.81 × 10−3 | 1.32 × 10−2 |
FT 13 | 523.2861 | 2 | 5.89 | 349.85 | 3.26 × 10−3 | 1.36 × 10−2 |
FT 14 | 737.7065 | 3 | 7.62 | 560.52 | 3.38 × 10−3 | 1.37 × 10−2 |
FT 15 | 1045.0706 | 2 | 10.73 | 494.44 | 3.55 × 10−3 | 1.39 × 10−2 |
FT 16 | 791.6306 | 2 | 8.04 | 393.91 | 4.55 × 10−3 | 1.47 × 10−2 |
FT 17 | 748.3706 | 1 | 9.16 | 266.04 | 6.14 × 10−3 | 1.61 × 10−2 |
FT 18 | 791.3799 | 2 | 8.04 | 388.88 | 6.48 × 10−3 | 1.65 × 10−2 |
FT 19 | 742.4507 | 1 | 9.99 | 268.93 | 6.64 × 10−3 | 1.66 × 10−2 |
FT 20 | 1141.0840 | 2 | 8.42 | 520.30 | 7.52 × 10−3 | 1.77 × 10−2 |
FT 21 | 908.5183 | 3 | 11.04 | 601.58 | 9.02 × 10−3 | 1.93 × 10−2 |
FT 22 | 412.7530 | 2 | 6.60 | 319.19 | 1.35 × 10−2 | 2.31 × 10−2 |
FT 23 | 421.7586 | 2 | 6.59 | 323.67 | 1.45 × 10−2 | 2.41 × 10−2 |
FT 24 | 623.2967 | 2 | 6.11 | 377.12 | 1.67 × 10−2 | 2.58 × 10−2 |
FT 25 | 761.0597 | 3 | 8.40 | 567.39 | 2.82 × 10−2 | 3.46 × 10−2 |
FT 26 | 880.4767 | 2 | 7.73 | 459.62 | 3.39 × 10−2 | 3.82 × 10−2 |
FT 27 | 914.5040 | 3 | 10.85 | 601.45 | 3.84 × 10−2 | 4.08 × 10−2 |
FT 28 | 692.4041 | 2 | 7.93 | 390.73 | 4.74 × 10−2 | 4.67 × 10−2 |
Feature Name | Retentiontime [min] | m/z | Charge | Modification Type | Fragment | Tryptic Peptide | Protein |
---|---|---|---|---|---|---|---|
FT 02 | 8.83 | 885.4834 | 2 | - | y15++ | FPQYLQYLYQGPIVLNPWDQVK | α-s2-casein |
FT 03 | 6.55 | 639.3500 | 3 | Lactulosyl-lysine | - | VLPVPQKAVPYPQR | β-casein |
FT 04 | 7.32 | 635.8622 | 2 | - | y11++ | DMPIQAFLLYQEPVLGPVR | β-casein |
FT 05 | 9.32 | 634.3570 | 2 | - | - | YLGYLEQLLR | α-s1-casein |
FT 12 | 7.51 | 412.7191 | 2 | - | y6++ | EPMIGVNQELAYFYPELFR | α-s1-casein |
FT 24 | 6.11 | 623.2967 | 2 | - | - | TPEVDDEALEK | β-lactoglobulin |
FT 26 | 7.73 | 880.4767 | 2 | - | - | HQGLPQEVLNENLLR | α-s1-casein |
FT 28 | 7.93 | 692.4041 | 2 | - | y12++ | DMPIQAFLLYQEPVLGPVR | β-casein |
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Class, L.-C.; Kuhnen, G.; Hanisch, K.L.; Badekow, S.; Rohn, S.; Kuballa, J. The Shelf Life of Milk—A Novel Concept for the Identification of Marker Peptides Using Multivariate Analysis. Foods 2024, 13, 831. https://doi.org/10.3390/foods13060831
Class L-C, Kuhnen G, Hanisch KL, Badekow S, Rohn S, Kuballa J. The Shelf Life of Milk—A Novel Concept for the Identification of Marker Peptides Using Multivariate Analysis. Foods. 2024; 13(6):831. https://doi.org/10.3390/foods13060831
Chicago/Turabian StyleClass, Lisa-Carina, Gesine Kuhnen, Kim Lara Hanisch, Svenja Badekow, Sascha Rohn, and Jürgen Kuballa. 2024. "The Shelf Life of Milk—A Novel Concept for the Identification of Marker Peptides Using Multivariate Analysis" Foods 13, no. 6: 831. https://doi.org/10.3390/foods13060831