Table 3 Linear correlation of organic acid determination
From: Proliferation of Bifidobacterium L80 under different proportions of milk protein hydrolysate
Peak number | Organic acid | Peak time(min) | Equation of linear regression | r2 |
|---|---|---|---|---|
1 | Formic acid | 2.403 | y = 80640x + 3.210 | 0.981 |
2 | Oxalic acid | 2.745 | y = 3543.7x + 14.869 | 0.988 |
3 | Malic acid | 2.957 | y = 2199.22x + 0.9188 | 0.992 |
4 | Acetic acid | 3.594 | y = 139.02x + 0.7112 | 0.996 |
5 | Tartaric acid | 3.957 | y = 467.63x–1.565 | 0.973 |
6 | Lactic acid | 4.567 | y = 1750.12x + 0.8043 | 0.999 |
7 | Citric acid | 6.309 | y = 1884.03x-0.1525 | 0.987 |