Research Progress Analysis on Copper in Wine Based on Bibliometrics

As a common trace metal element in grapes and wine, copper has been of interest and studied intensively by researchers. To grasp the relevant research progress and development trend, a statistical analysis of relevant studies in the Web of Science core database was performed using bibliometric methods. It has been found that the number of the current global literature on copper in grapes and wines showed a rapid increase. The research focused on food chemistry was the largest group, which oriented on the major wine-producing countries, particularly in Australian A.C.Clark. The keyword co-occurrence analysis showed that the popular research on this topic mainly focuses on the following aspects: a. The accumulation and migration pattern of copper. b. The effects of copper stress on wine quality and human health. c. Copper content testing method. d. Development of methods to reduce the effects of copper stress in grapes and wine. In addition, the development of novel and effective methods to test copper content and reduce the effects of copper stress in grapes and wine may be a popular topic for future research. This study would provide a partial reference and basis for a comprehensive understanding of the current status and trends of copper research in grapes and wines.