We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
STUDY OF AUTHENTICITY OF RED WINE BASED ON POLYPHENOL AND MINERAL ELEMENTAL FINGERPRINTING.
- Authors
Erzsébet, Fogarasi; M. D., Croitoru; L., Vlase; Biljana, Balabanova; Violeta, Ivanova-Petropulos; S., Mitrev; Lucia, Muntean Daniela
- Abstract
Background: Red wine is a widely used and liked alcoholic beverage, manufactured from red grapes. Due to steadily increasing demand, more and more low-grade wines appeared on Romanian market. The polyphenol content and mineral elemental composition of red wine can be used as main factors for discrimination and originality check. From this point of view, we measured the phenolic profile and mineral element contents of red wine, then the experimental data were subjected to principal component analysis (PCA). PCA is a simple statistical procedure to decrease the dimensionality of the data matrix and to convert original variables into some new vectors (principal components), which described the different between the samples. Material and methods: Twenty-eight red wine available on Romanian and also on the international market were used in these study. Fourteen nonflavonoid/flavonoid compounds and cis-/trans-resveratrol were analyzed by HPLC-UV/ESI-MS and HPLC-UV/APCI-MS, respectively. Thirty-five macro and trace mineral elements were measured by inductively coupled plasma mass spectrometry (ICPMS). PCA of the data was performed using Microsoft Excel XLState software. Results: Through PCA we observed the relationships between different parameters. Based on the HPLC-UV/ESI/APC-MS results and on the score plot of PC1 and PC2 existence of several groups of vines was observed. In the PC score projection of mineral element contents, eight group were separated. These results appeared to be related to the geographic origin of wines. Conclusions: This work described a procedure to characterize red wine, based on polyphenol profile and mineral element composition. PCA result indicated obvious differences between samples. The polyphenol content is an effective tool to identify the type of grape used for obtaining the wines. Also its mineral elemental fingerprint can be used as a device to obtain information about the geographical origin of the wine.
- Publication
Acta Medica Marisiensis, 2016, Vol 62, p6
- ISSN
2068-3324
- Publication type
Academic Journal