Prediction results of the content of Maillard reaction products in Baijiu by HBT_Zn2+ UV-VIS sensor method
| Category | Compounds | True value | Predicted value | The difference |
|---|---|---|---|---|
| Pyrazines | 2,6-dimethylpyrazine | 0.2490 ± 0.2192 | 0.2489 ± 0.2188 | 0.3430% ± 0.9530% |
| 2,6-dimethyl-5-ethylpyrazine | 0.3762 ± 0.2491 | 0.3759 ± 0.2481 | 0.8731% ± 1.4945% | |
| Tetramethyl pyrazine | 0.2241 ± 0.2383 | 0.2240 ± 0.2382 | 0.2374% ± 0.1861% | |
| 2,5-dimethyl-3-amyl-pyrazine | 0.3299 ± 0.2353 | 0.3302 ± 0.2353 | 0.5187% ± 0.0081% | |
| Aromatics | 1,2-dimethoxybenzene | 0.2377 ± 0.1904 | 0.2376 ± 0.1905 | 0.7460% ± 2.0487% |
| 2-acetyl-5-methylfuran | 0.3697 ± 0.2581 | 0.3699 ± 0.2581 | 0.7212% ± 1.1937% | |
| 2-methylphenol | 0.2379 ± 0.1703 | 0.2380 ± 0.1703 | 1.8746% ± 1.4515% | |
| Aldoketones | Phenylacetaldehyde | 0.3342 ± 0.2218 | 0.3342 ± 0.2219 | 0.7663% ± 1.4843% |
| α-ethylenephenylacetaldehydeydeyde | 0.3867 ± 0.2597 | 0.3868 ± 0.2598 | 0.4586% ± 0.6471% | |
| 5-methyl-2-furanaldehyde | 0.3140 ± 0.2216 | 0.3139 ± 0.2217 | 0.6599% ± 1.4408% | |
| Furfural | 0.3881 ± 0.2605 | 0.3881 ± 0.2603 | 0.7600% ± 1.6048% | |
| 1-(2-furanyl)-ethyl ketone | 0.3967 ± 0.2555 | 0.3965 ± 0.2555 | 0.4951% ± 0.6270% |
UV-VIS: ultraviolet-visible spectroscopy; HBT: 2-(2-hydroxyphenyl) benzothiazole