From Soil to Grape and Wine: Geographical Variations in Elemental Profiles in Different Chinese Regions

Foods

卷:10

Yangbo Song¹  Hua Wang²  Hua Li²  Feifei Gao²  Xiaoyun Hao²  Liang Zhang²  Hao Wu³ 

[1] Agriculture and Animal Husbandry College, Qinghai University, Xining 810015, China;

[2] College of Enology, Northwest A&F University, Yangling, Xianyang 712100, China;

[3] Food Inspection and Quarantine Center, Shenzhen Customs, Shenzhen 518033, China;

关键词: geographical variation;    elemental profile;    bioconcentration factor;    transfer factor;    environmental factor;    ICP-MS;   

DOI  :  10.3390/foods10123108

来源: DOAJ

【 摘 要 】

Elemental profiles are frequently applied to identify the geographical origin and authenticity of food products, to guarantee quality. The concentrations of fifteen major, minor, and trace elements (Na, Mg, K, Ca, Al, Fe, Mn, Cu, Zn, Rb, Sr, Li, Cd, Cs, and Ba) were determined in soils, “Meili” grapes, and wines from six regions in China by inductively coupled plasma mass spectrometry (ICP-MS). The elemental concentrations in these samples, according to the geographical origins, were analyzed by one-way analysis of variance (ANOVA) with Duncan’s multiple comparisons. The bioconcentration factor (BCF) from soil to grape and the transfer factor (TF) from grape to wine were calculated. Mg, K, Ca, Cu, Zn, Rb, Sr, and Ba presented higher BCF values than the other seven elements. The TF values of six elements (Na, Mg, K, Zn, Li, and Cs) were found to be greater than one. Moreover, the correlation of element content between the pairs of soil–grape, grape–wine, and bioconcentration factor (BCF)–environmental factor were analyzed. Significant correspondences among soil, grape, and wine were observed for K and Li. Two elements (Sr and Li) showed significant correlations between BCF and environmental factor (relative humidity, temperature, and latitude). A linear discriminant analysis (LDA) with three variables (K, Sr, Li) revealed a high accuracy (>90%) to determine the geographical origin for different Chinese regions.

【 授权许可】

Unknown