Prediction results of the content of Maillard reaction products in Baijiu by HBT_Zn2+ UV-VIS sensor method

CategoryCompoundsTrue valuePredicted valueThe difference
Pyrazines2,6-dimethylpyrazine0.2490 ± 0.21920.2489 ± 0.21880.3430% ± 0.9530%
2,6-dimethyl-5-ethylpyrazine0.3762 ± 0.24910.3759 ± 0.24810.8731% ± 1.4945%
Tetramethyl pyrazine0.2241 ± 0.23830.2240 ± 0.23820.2374% ± 0.1861%
2,5-dimethyl-3-amyl-pyrazine0.3299 ± 0.23530.3302 ± 0.23530.5187% ± 0.0081%
Aromatics1,2-dimethoxybenzene0.2377 ± 0.19040.2376 ± 0.19050.7460% ± 2.0487%
2-acetyl-5-methylfuran0.3697 ± 0.25810.3699 ± 0.25810.7212% ± 1.1937%
2-methylphenol0.2379 ± 0.17030.2380 ± 0.17031.8746% ± 1.4515%
AldoketonesPhenylacetaldehyde0.3342 ± 0.22180.3342 ± 0.22190.7663% ± 1.4843%
α-ethylenephenylacetaldehydeydeyde0.3867 ± 0.25970.3868 ± 0.25980.4586% ± 0.6471%
5-methyl-2-furanaldehyde0.3140 ± 0.22160.3139 ± 0.22170.6599% ± 1.4408%
Furfural0.3881 ± 0.26050.3881 ± 0.26030.7600% ± 1.6048%
1-(2-furanyl)-ethyl ketone0.3967 ± 0.25550.3965 ± 0.25550.4951% ± 0.6270%

UV-VIS: ultraviolet-visible spectroscopy; HBT: 2-(2-hydroxyphenyl) benzothiazole