 IVES 9 IVES Conference Series 9 Kinetics modeling of a sangiovese wine chemical and physical parameters during one-year aging in different tank materials

Kinetics modeling of a sangiovese wine chemical and physical parameters during one-year aging in different tank materials

Abstract

AIM: The use of different tank materials during red wine aging has become increasingly popular, but little is known about their impact on wine chemical and physical parameters. The present study aims to model the evolution of Sangiovese red wine during one-year aging at industrial scale in different tank materials (stainless steel, epoxy-coated concrete, uncoated concrete, raw earthenware amphora, new oak barrel and used oak barrel), in order to describe how the tank material could both allow the mass transfer of different amount of oxygen, or tannins and affect the oxidation and reduction reactions in wine.

METHODS: A Sangiovese red wine from 2018 harvest was monitored during one-year aging in six different tank materials in industrial scale (5 hL) and in triplicate. The wine chemical and physical parameters monitored were: dissolved oxygen (DO), redox potential (EH), Cielab coordinates, acetaldehyde, monomer anthocyanins and polymeric pigments content. The tank materials (M), storage time (t) and temperature (T) were considered as factors. Stainless steel (SS) was chosen as reference material. The kinetic models of the collecting data were performed as described in literature when available, otherwise a polynomial curve was adopted to obtain a good phenomenological fitting.

RESULTS: The experimental data were modeled and the kinetic models were able to describe the differences between the wine samples aged in the different tank materials. The same equation was used to describe the kinetics of oxygen consumption (DO) and six equations were instead necessary to model redox potential (EH) trend for the wines aged in the different tank materials (1,2,3). The DO and EH were also related to the chemical phenomena which were monitored and modeled for polymeric pigments, monomeric anthocyanins, acetaldehyde, and CIELab coordinates measurements during wine aging (4,5). Through the modeling of the different chemical parameters it was possible to evidence differences between the wines aged in different tank materials. In particular, the tanks in stainless steel and in epoxy-coated concrete were the least suitable to let the variation of the redox state of the wines and consequently to activate the polymerization reaction of wine phenolic fraction, exactly the opposite of the oak barrels; earthenware raw amphorae and uncoated concrete, on the other hand, had an intermediate behavior, but tended to be more similar to oak barrels.

CONCLUSIONS

The kinetics modeling of chemical and physical wine parameters was able to describe differences among wines aged in different tank materials. In particular, the one-year evolution of the phenolic composition, dissolved oxygen and redox potential of wines showed significant differences between aging tanks involved, differentiating the wines according to the material.

DOI:

Publication date: September 13, 2021

Issue: Macrowine 2021

Type: Article

Authors

Francesco Maioli

Department of Agricultural, Food, Environmental, and Forestry Sciences and Technologies – University of Florence, via Donizetti, 6 – 50144 Firenze (Italy),Lorenzo GUERRINI, Department of Agricultural, Food, Environmental, and Forestry Sciences and Technologies – University of Florence, via Donizetti, 6 – 50144 Firenze (Italy) Monica PICCHI, Department of Agricultural, Food, Environmental, and Forestry Sciences and Technologies – University of Florence, via Donizetti, 6 – 50144 Firenze (Italy) Alessandro PARENTI, Department of Agricultural, Food, Environmental, and Forestry Sciences and Technologies – University of Florence, via Donizetti, 6 – 50144 Firenze (Italy) Bruno ZANONI, Department of Agricultural, Food, Environmental, and Forestry Sciences and Technologies – University of Florence, via Donizetti, 6 – 50144 Firenze (Italy) Valentina CANUTI, Department of Agricultural, Food, Environmental, and Forestry Sciences and Technologies – University of Florence, via Donizetti, 6 – 50144 Firenze (Italy)

Contact the author

Keywords

dissolved oxygen, enological tank materials, earthenware raw amphora, redox potential, uncoated concrete, wine aging kinetics

Citation

Vine-growing zoning of the municipal territories of Ronda and Arriate (Malaga, Spain), « Sierras de Málaga » registered appellation of origin mark

The aim of this communication is the study of the Ronda and Arriate municipal territories environment in order to define and to establish the main physical factors in relation to vine-growing land use. The vine-growing zoning proposed is based on geopedological and climatic features.

Diversificazione e valorizzazione di produzioni tipiche sul territorio: I cesanesi

The zone in which the Cesanese vines are cultivated has a secular tradition of red winemaking. This zone is placed between the Simbruini mountains slopes and the surrounding hills and has pedologicai variability but a very homogeneous microclimate.

Do wine sulphites affect gut microbiota? An in vitro study of their digestion in the gastrointestinal tract

“Sulphites” and mainly sulphur dioxide (SO2) is by far the most widely used additive (E-220/INS 220) in winemaking and likely the most difficult to replace. The well-known antioxidant, antioxidasic and antimicrobial properties of SO2 make this molecule a practically essential tool, not only in winemaking, but also in the production of other food products. The current trend in winemaking is the reduction of this unfriendly additive due to its negative effects on health and environmental. In particular, it could cause headaches and intolerance/allergic reactions in sensitive individuals. Wine is considered one of the major contributors of exposure of SO2 in the adult population, when this beverage is included in the diet.

FOLIAR APPLICATION OF METHYL JASMONATE AND METHYL JASMONATE PLUSUREA: INFLUENCE ON PHENOLIC, AROMATIC AND NITROGEN COMPOSITION OFTEMPRANILLO WINES

Phenolic, volatile and nitrogen compounds are key to wine quality. On one hand, phenolic compounds are related to wine color, mouthfeel properties, ageing potential. and are associated with beneficial health properties. On the other hand, wine aroma is influenced by hundreds of volatile compounds. Fermentative aromas represent, quantitatively, the wine aroma, and among these volatile compounds, esters, higher alcohols and acids are mainly responsible for the fermentation bouquet.

Fingerprinting as approach to unlock black box of taste

The black box of taste is getting unlocked. The starting point is to distinguish taste from tasting. Consider taste as a product characteristic; tasting is a sensorial activity. Consequently, taste can be studied on a molecular level and therefore be assessed more objectively, whilst tasting is a human activity and by definition subjective.