期刊
JOURNAL OF FOOD COMPOSITION AND ANALYSIS
卷 102, 期 -, 页码 -出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jfca.2021.104062
关键词
Vitis vinifera; GEN-GEO groups; Polyphenolic compounds
资金
- Centre of Excellence for Biodiversity and Molecular Plant Breeding [CoE CroP-BioDiv KK.01.1.1.01.005]
This study investigated the polyphenolic profiles of 50 grape varieties from different GEN-GEO groups, and using discriminant analysis, the genetic-geographic groups were clearly separated based on their polyphenolic profiles, confirming that different groups have unique polyphenolic profiles.
Relevant aspect of wine geographic origin is related to grapevine varieties used for wine production in specific wine country or region. The grapevine germplasm is highly variable and classified into geographic groups. These classifications were recently confirmed using genetic studies, and further classified varieties into geographicgenetic (GEN-GEO) groups. Polyphenolic compounds are important secondary metabolites in grapes and have an important impact on wine quality and sensory properties. The aim of this research was to investigate the polyphenolic profiles of 50 grape varieties from different GEN-GEO groups. The groups were C2 (varieties from Italy and France), C7 (varieties from Croatia), C8 (varieties from Spain and Portugal). Polyphenolic compounds analysed belonged to the classes of anthocyanins, flavan-3-ols, flavonols, phenolic acids, and stilbenes. The most abundant classes of polyphenols were anthocyanins, followed by flavan-3-ols and flavonols. Using discriminant analysis, the genetic-geographic groups were clearly separated based on their polyphenolic profiles, with all classes of compounds contributing to discrimination.
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