The application of right-angle fluorescence spectroscopy as a tool to distinguish five autochthonous commercial Greek white wines
White wine is among the most widely consumed alcoholic beverages. Varietal discrimination of wines has received increasing attention. Today's consumers require a sense of authenticity and are deterred by falsehood or misrepresentation in product marketing. However, wine can involve various type...
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2021
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oai:doaj.org-article:6252574833e64b8bb7d34328345df22e2021-11-18T04:51:33ZThe application of right-angle fluorescence spectroscopy as a tool to distinguish five autochthonous commercial Greek white wines2665-927110.1016/j.crfs.2021.11.003https://doaj.org/article/6252574833e64b8bb7d34328345df22e2021-01-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2665927121000927https://doaj.org/toc/2665-9271White wine is among the most widely consumed alcoholic beverages. Varietal discrimination of wines has received increasing attention. Today's consumers require a sense of authenticity and are deterred by falsehood or misrepresentation in product marketing. However, wine can involve various types of frauds, which directly affects the distribution of wine in national and international markets. Right-angle fluorescence spectroscopy is a simple and rapid analytical technique that in combination with chemometric algorithms, constitutes a novel method for wine authentication. In this study, the stepwise-Linear Discriminant Analysis algorithm was applied in three representative spectral regions related to phenolic compounds for the purpose of distinguishing white wines according to the grape variety. The wavelength at 310 nm attributed to the hydroxycinnamic acids and stilbene provided a higher classification rate (95.5%) than the λex 280 and 295 nm regions (79.8%), suggesting that these compounds are highly related to the botanical origin of samples. The chemometric models were validated utilizing cross-validation and an external validation set to enhance the robustness of the proposed methodology. The above-mentioned methodology constitutes a powerful tool for the varietal discrimination of white wines and can be used in industrial setting. The ultimate goal of this study is to contribute to the efforts towards the authentication of Greek white wine which will eventually support producers and suppliers to remain competitive and simultaneously protect the consumers from fraudulent practices.Marinos XagorarisPanagiota-Kyriaki RevelouNikos ArvanitisMarianthi BasalekouChristos S. PappasPetros A. TarantilisElsevierarticleWhite winesRight-angle fluorescence spectroscopyPhenolic compoundsStepwise linear discriminant analysisAuthenticityNutrition. Foods and food supplyTX341-641Food processing and manufactureTP368-456ENCurrent Research in Food Science, Vol 4, Iss , Pp 815-820 (2021) |
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White wines Right-angle fluorescence spectroscopy Phenolic compounds Stepwise linear discriminant analysis Authenticity Nutrition. Foods and food supply TX341-641 Food processing and manufacture TP368-456 |
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White wines Right-angle fluorescence spectroscopy Phenolic compounds Stepwise linear discriminant analysis Authenticity Nutrition. Foods and food supply TX341-641 Food processing and manufacture TP368-456 Marinos Xagoraris Panagiota-Kyriaki Revelou Nikos Arvanitis Marianthi Basalekou Christos S. Pappas Petros A. Tarantilis The application of right-angle fluorescence spectroscopy as a tool to distinguish five autochthonous commercial Greek white wines |
description |
White wine is among the most widely consumed alcoholic beverages. Varietal discrimination of wines has received increasing attention. Today's consumers require a sense of authenticity and are deterred by falsehood or misrepresentation in product marketing. However, wine can involve various types of frauds, which directly affects the distribution of wine in national and international markets. Right-angle fluorescence spectroscopy is a simple and rapid analytical technique that in combination with chemometric algorithms, constitutes a novel method for wine authentication. In this study, the stepwise-Linear Discriminant Analysis algorithm was applied in three representative spectral regions related to phenolic compounds for the purpose of distinguishing white wines according to the grape variety. The wavelength at 310 nm attributed to the hydroxycinnamic acids and stilbene provided a higher classification rate (95.5%) than the λex 280 and 295 nm regions (79.8%), suggesting that these compounds are highly related to the botanical origin of samples. The chemometric models were validated utilizing cross-validation and an external validation set to enhance the robustness of the proposed methodology. The above-mentioned methodology constitutes a powerful tool for the varietal discrimination of white wines and can be used in industrial setting. The ultimate goal of this study is to contribute to the efforts towards the authentication of Greek white wine which will eventually support producers and suppliers to remain competitive and simultaneously protect the consumers from fraudulent practices. |
format |
article |
author |
Marinos Xagoraris Panagiota-Kyriaki Revelou Nikos Arvanitis Marianthi Basalekou Christos S. Pappas Petros A. Tarantilis |
author_facet |
Marinos Xagoraris Panagiota-Kyriaki Revelou Nikos Arvanitis Marianthi Basalekou Christos S. Pappas Petros A. Tarantilis |
author_sort |
Marinos Xagoraris |
title |
The application of right-angle fluorescence spectroscopy as a tool to distinguish five autochthonous commercial Greek white wines |
title_short |
The application of right-angle fluorescence spectroscopy as a tool to distinguish five autochthonous commercial Greek white wines |
title_full |
The application of right-angle fluorescence spectroscopy as a tool to distinguish five autochthonous commercial Greek white wines |
title_fullStr |
The application of right-angle fluorescence spectroscopy as a tool to distinguish five autochthonous commercial Greek white wines |
title_full_unstemmed |
The application of right-angle fluorescence spectroscopy as a tool to distinguish five autochthonous commercial Greek white wines |
title_sort |
application of right-angle fluorescence spectroscopy as a tool to distinguish five autochthonous commercial greek white wines |
publisher |
Elsevier |
publishDate |
2021 |
url |
https://doaj.org/article/6252574833e64b8bb7d34328345df22e |
work_keys_str_mv |
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