Song, Xuebo published the artcileUntargeted and targeted metabolomics strategy for the classification of strong aroma-type baijiu (liquor) according to geographical origin using comprehensive two-dimensional gas chromatography-time-of-flight mass spectrometry, Application In Synthesis of 14667-55-1, the main research area is metabolomic aroma baijiu geog GC TOF MS; 1-Butanol (PubChem CID: 263); 2-Acetyl-5-methylfuran (PubChem CID: 14514); 3-Octanol (PubChem CID: 11527); Acetoin (PubChem CID: 179); Dimethyl disulfide (PubChem CID: 12232); Dimethyl trisulfide (PubChem CID: 19310); GC×GC-TOFMS; Geographical origin; Isoamyl acetate (PubChem CID: 31276); Metabolomics; Strong aroma-type baijiu; Targeted; Trimethylpyrazine (PubChem CID: 26808); Untargeted.
A metabolomics strategy was developed to differentiate strong aroma-type baijiu (SAB) (distilled liquor) from the Sichuan basin (SCB) and Yangtze-Huaihe River Basin (YHRB) through liquid-liquid extraction coupled with GC×GC-TOFMS. PCA effectively separated the samples from these two regions. The PLS-DA training model was excellent, with explained variation and predictive capability values of 0.988 and 0.982, resp. As a result, the model demonstrated its ability to perfectly differentiate all the unknown SAB samples. Twenty-nine potential markers were located by variable importance in projection values, and twenty-four of them were identified and quantitated. Discrimination ability is closely correlated to the characteristic flavor compounds, such as acid, esters, furans, alcs., sulfides and pyrazine. Most of the marker compounds were less abundant in the SCB samples than in the YHRB samples. The quantitated markers were further processed using hierarchical cluster anal. for targeted anal., indicating that the markers had great discrimination power to differentiate the SAB samples.
Food Chemistry published new progress about Baijiu. 14667-55-1 belongs to class pyrazines, name is 2,3,5-Trimethylpyrazine, and the molecular formula is C7H10N2, Application In Synthesis of 14667-55-1.