supported by the National Natural Science Foundation of China(No.61378037);the Fundamental Research Funds for the Central Universities(Nos.JUSRP51628B and 1142050205180920);the National First-class Discipline Program of Food Science and Technology(No.JUFSTR20180302)
The determination of Luzhou-flavor liquor ages is carried out by three-dimensional fluorescence spectroscopy combined with non-negative matrix factorization(NMF). 37 samples of aged liquors with weighted ages of 15, 2...