INFLUENCE OF MICRO-, MACROELEMENTS AND HEAVY METALS ON WINE QUALITY
Journal Title: Annals. Food Science and Technology - Year 2016, Vol 17, Issue 1
Abstract
From the chemical point of view wine is a complex mixture of water, sugar, inorganic and organic materials. There are some factor which influence wine composition: grape varieties, soil type, the climate, type of culture, agrochemical product (fertilizers and pesticides) and the practices used for wine making. These factors are directly involved in wine and wine characterization. Besides the quality issues that these heavy metals create in the wine, they also affect the health of wine consumers. The aim of this paper is to determine the qualitative charateristics of wine, but also to determine the quantitative of five elements: Na, Mg, Cu, Pb, and Cd from wine, using FAAS. The bilogical material used was compoused by the varieties: Fetească albă, Fetească regală, Riesling Italian and Pinot gris grown in Silvania vineyard. The values obtained for alcoholic strength, total acidity, residual sugar and dry extract is specific for the four analysed varieties. The average concentration of metals in samples of wine was: 39.17±1.11 mg/L (Na); 101.08±0.89 mg/L (Mg); 0.60±0.03 mg/L (Cu) and 0.13±0.01 mg/L (Pb), in case of Cd concentration of this heavy metal are below the detection limit. Concentration of micro-, macroelements and heavy metals in wine samples was recorded below the recommended health limits of the International Organization of Vine and Wine. Correlation analysis revealed a number of strong correlation between the qulitative characteristics of wine and concentration of micro-, macroelements and heavy metals.
Authors and Affiliations
Florin-Dumitru Bora
Keywords
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