Application of benchtop total-reflection X-ray fluorescence spectrometry and chemometrics in classification of origin and type of Croatian wines

Čepo, Dubravka Vitali; Karoglan, Marko; Borgese, Laura; Depero, Laura E.; Marguí, Eva; Jablan, Jasna

doi:10.1016/j.fochx.2022.100209

Cited by 16 publications

(22 citation statements)

References 37 publications

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“…In Croatia, the contents of several selected metals in both red and white wine samples (n = 70) were collected from the continental (northeast) and Adriatic areas (near the Adriatic Sea) and were determined by total reflection X-ray analysis fluorescence spectrometry (TXRF). The levels of Zn range between 0.51-1.01 mg L −1 , although it must be stressed that grapes were not submitted to foliar Zn fertilization [60]. All these values fell in the ranges frequently found in different wines for Zn, i.e., between 0.5 and 3.5 mg L −1 [61].…”

Section: Discussionmentioning

confidence: 90%

Zinc Biofortification in Vitis vinifera: Implications for Quality and Wine Production

Daccak

Lidon

Luís

et al. 2022

Plants

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Nowadays, there is a growing concern about micronutrient deficits in food products, with agronomic biofortification being considered a mitigation strategy. In this context, as Zn is essential for growth and maintenance of human health, a workflow for the biofortification of grapes from the Vitis vinifera variety Fernão Pires, which contains this nutrient, was carried out considering the soil properties of the vineyard. Additionally, Zn accumulation in the tissues of the grapes and the implications for some quality parameters and on winemaking were assessed. Vines were sprayed three times with ZnO and ZnSO4 at concentrations of 150, 450, and 900 g ha−1 during the production cycle. Physiological data were obtained through chlorophyll a fluorescence data, to access the potential symptoms of toxicity. At harvest, treated grapes revealed significant increases of Zn concentration relative to the control, being more pronounced for ZnO and ZnSO4 in the skin and seeds, respectively. After winemaking, an increase was also found regarding the control (i.e., 1.59-fold with ZnSO4-450 g ha−1). The contents of the sugars and fatty acids, as well as the colorimetric analyses, were also assessed, but significant variations were not found among treatments. In general, Zn biofortification increased with ZnO and ZnSO4, without significantly affecting the physicochemical characteristics of grapes.

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Section: Discussionmentioning

confidence: 90%

Zinc Biofortification in Vitis vinifera: Implications for Quality and Wine Production

Daccak

Lidon

Luís

et al. 2022

Plants

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“…PCA is one of the most commonly used chemometric tools in combination with EDXRF to discriminate sample types (according to their origin, quality, species, variety, etc) in food science and nutrition [25,26]. In the present study, element concentrations (K, Ca, Mn, Fe, Cu, Zn, Rb and Sr) determined using the empirical EDXRF method were used as variables.…”

Section: Chemometric Strategies In Combination With Edxrf Data For Co...mentioning

confidence: 99%

Critical Evaluation of Energy Dispersive X-Ray Fluorescence Spectrometry for Multielemental Analysis of Coffee Samples: Sample Preparation, Quantification and Chemometric Approaches

Margui,

Weinberger,

Queralt

et al. 2024

Preprint

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“…In 2023, the International Organization of Viticulture and Wine (OIV) updated its collection of international methods for the analysis of wine and grape juice, which plays a significant role in the harmonization of analytical techniques and regulates various approaches to analyzing samples [8]. In many wine-producing countries of the world, the mineral composition is used as a tool for identifying the geographical origin of wines [6,7,[9][10][11][12][13][14]. This approach makes it possible to determine the quality of wines, identify counterfeits, and also identify wines by name and origin, due to the specificity of the resulting sample profiles [15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

The Influence of the Soil Profile on the Formation of the Elemental Image of Grapes and Wine of the Cabernet Sauvignon Variety

Temerdashev,

Abakumov,

Khalafyan

et al. 2024

Molecules

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The features for assessing the authenticity of wines by region of origin are studied, based on the relationship between the mineral composition of the wine, the grapes, and the soil profile (0 to 160 cm) from the place of growth of Cabernet Sauvignon grapes. Soil, grape, and wine samples were taken from the territories of six vineyards in the Anapa district of Krasnodar Territory, Russia. Using the methods of ICP-OES, thermal, and X-ray phase analysis, the soils were differentiated into three groups, differing in mineralogical and mineral compositions. The soil samples of the first group contained up to 31% quartz, the second group up to 25% quartz and 19% mixed calcite, and the third group up to 32% calcite and 15% quartz. The formation of the elemental image of the grapes was studied, taking into account the total content and mobile forms of metals in the soil. The territorial proximity of the vineyards did not affect the extraction of elements from the soil into the grape berry, and the migration of metals for each territory was selective. According to the values of the biological absorption coefficient, the degree of transition of metals from the soil to a berry was estimated. For K, Ti, Zn, Rb, Cu, and Fe in all berries, the coefficient was higher than 1.00, which means that the berry extracts contained not only mobile-form, but also difficult-to-dissolve metal compounds. The migration of macro-components from the soil to the berry was low, and amounted to 6–7% for Ca, 0.8–3.0% for Na, and 25–70% for Mg of the concentration of their mobile forms. For all territories, the maximum correlation between metal concentrations in grapes and soil was observed for samples from a depth of 0–40 cm. The discriminant model based on concentrations of Rb, Al, K, Sr, Co, Na, Pb, Ca, and Ni showed the formation of clusters in the territories of vineyard cultivation. The developed model allow the problems of identifying wines by region to be solved with high accuracy, using their elemental image.

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Application of benchtop total-reflection X-ray fluorescence spectrometry and chemometrics in classification of origin and type of Croatian wines

Cited by 16 publications

References 37 publications

Zinc Biofortification in Vitis vinifera: Implications for Quality and Wine Production

Zinc Biofortification in Vitis vinifera: Implications for Quality and Wine Production

Critical Evaluation of Energy Dispersive X-Ray Fluorescence Spectrometry for Multielemental Analysis of Coffee Samples: Sample Preparation, Quantification and Chemometric Approaches

The Influence of the Soil Profile on the Formation of the Elemental Image of Grapes and Wine of the Cabernet Sauvignon Variety

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