Several mineral elements discriminate the origin of wines from three districts in China

Abstract

The concentrations of eight mineral elements were determined by inductively coupled plasma-atomic emission spectrometry in 48 grape wine samples to distinguish the wine origins from three districts in China. The results of principal component analysis indicated that the samples from Yinchuan city could be separated from Penglai and Changli cities. The samples could be clustered into three groups according to region of origin by cluster analysis with only two miss-cluster. The stepwise method of discrimination analysis with three mineral elements was able to 100% classify the original groups of all samples. Sr and Mn are characteristic elements for wines originating from Yinchuan city and Changli city, respectively, as determined from the results of Duncan multiple comparisons on the concentrations of Mn and Sr.