Pattern recognition analysis applied to classification of Galician (NW Spain) wines with Certified Brand of OriginRibeira Sacra
✍ Scribed by Pe�a, Rosa M; Latorre, Mar�a J; Garc�a, Sagrario; Botana, Ana M; Herrero, Carlos
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 84 KB
- Volume
- 79
- Category
- Article
- ISSN
- 0022-5142
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✦ Synopsis
In 39 red wines from Galicia (NW Spain), some trace elements were determined by atomic spectroscopy. Data were processed using multivariate chemometric techniques involving principal component analysis, discriminant analysis and K nearest neighbours to develop a typi®cation for wine samples of Ribeira Sacra origin. The wines with Certi®ed Brand of Origin (CBO) Ribeira Sacra can be differentiated from the wines of two other CBOs from Galicia: Ribeiro and Valdeorras. The latter CBOs make wines with the same grape variety; hence they are possible substitutes for falsi®cation of Ribeira Sacra wines owing to their similar organoleptic properties. By means of multivariate techniques of data exploration, two main groups of samples (Ribeira Sacra and non-Ribeira Sacra wines) were observed. Exploratory analysis results were con®rmed using supervised procedures of data classi®cation. Using lithium and iron content as key features, a satisfactory classi®cation was achieved.