Investigation of the copper contents in vineyard soil, grape must and wine and the relationship among them in the Huaizhuo Basin Region, China: A preliminary study

Xiangyu Sun; Tingting Ma; Jing Yu; Weidong Huang; Yulin Fang; Jicheng Zhan

doi:10.1016/j.foodchem.2017.08.074

Investigation of the copper contents in vineyard soil, grape must and wine and the relationship among them in the Huaizhuo Basin Region, China: A preliminary study

Food Chem. 2018 Feb 15:241:40-50. doi: 10.1016/j.foodchem.2017.08.074. Epub 2017 Aug 24.

Authors

Xiangyu Sun¹, Tingting Ma², Jing Yu³, Weidong Huang³, Yulin Fang⁴, Jicheng Zhan⁵

Affiliations

¹ College of Food Science and Nutritional Engineering, Beijing Key Laboratory of Viticulture and Enology, China Agricultural University, Beijing 100083, China; College of Enology, Northwest A&F University, Yangling 712100, China.
² College of Food Science and Nutritional Engineering, Beijing Key Laboratory of Viticulture and Enology, China Agricultural University, Beijing 100083, China; College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China.
³ College of Food Science and Nutritional Engineering, Beijing Key Laboratory of Viticulture and Enology, China Agricultural University, Beijing 100083, China.
⁴ College of Food Science and Nutritional Engineering, Beijing Key Laboratory of Viticulture and Enology, China Agricultural University, Beijing 100083, China; College of Enology, Northwest A&F University, Yangling 712100, China. Electronic address: fangyulin@nwsuaf.edu.cn.
⁵ College of Food Science and Nutritional Engineering, Beijing Key Laboratory of Viticulture and Enology, China Agricultural University, Beijing 100083, China. Electronic address: zhanjicheng@cau.edu.cn.

PMID: 28958546
DOI: 10.1016/j.foodchem.2017.08.074

Abstract

The copper contents in vineyard soil, grape must and wine and the relationship among them in the Huaizhuo Basin Region, China, were investigated. The results showed that the copper pollution status in vineyard soils, grapes and wines in the investigated area in China is under control, with only 4 surface soil (0-20cm) samples over maximum residue limits (MRL) and no grape or wine samples over MRL. Different vineyards, grape varieties, vine ages, and training systems all significantly influenced the copper contents in the vineyard soils, grape and wines. Additionally, the copper levels in the vineyard soils, grapes and wines all had some correlation. In wine samples, the copper contents ranged from 0.52 to 663μg/L, which is only approximately one percent the level found in grapes and one ten-thousandth that found in soils. Of the wine samples, red wines showed a significantly higher copper content than white wines, while in the red/white grape and soil samples, no significant differences were observed.

Keywords: Copper; Grape; Grape variety; Training systems; Vine age; Vineyard soils; Wine.

MeSH terms

China
Copper
Farms
Soil*
Vitis*
Wine*

Substances

Soil
Copper