 IVES 9 IVES Conference Series 9 Natural magnetic levitation for the storage of wine bottles

Natural magnetic levitation for the storage of wine bottles

Abstract

AIM: Wine storage ensuring the quality and correct aging is one of the issues that wineries, wine traders and consumers encounter after wine bottling. The environmental conditions in which the bottle are stored such as temperature, humidity and vibrations may dramatically influence the process. The aim of this project is to study a new cutting-edge technology that uses natural magnetic levitation to dampen the effects of vibrations affecting fine wine bottles.

METHODS: Free standing wine racks equipped with natural magnetic levitation devices (Relaxa, Wineleven, Italy) were compared with conventional racks for a 12-month storage of a fine red wine in bottles (see scheme). A: Relaxa (upper shelf) D: Relaxa (upper shelf) C (control) bottom shelf in contact with the floor and with A B: bottom shelf in contact with the floor (and with D) equipped with a speaker diffusing sonic vibrations floor floor 5 sampling times (2 bottles for each treatment) are planned: time 0 (start of storage); time 1 (after 30 d), time 3 m; time 6 months; time 12 months. All the samples are being analyzed for volatile compounds (GCxGC ToF/MS), phenolic profile (HPLC DAD/FLD and offline LC QqQ-MS), sensory analysis (15-person panel trained for the QDA ® method) and multivariate statistic post-processing.

RESULTS: The panel could be considered reliable for the evaluation of 22 out of 25 sensory descriptors. The statistical elaboration on sensory data showed a good discrimination among different treatments. Instead, the polyphenols and aroma compounds analysis showed mostly the effects of storage time.

CONCLUSIONS

So far (time 6), the sensory analysis showed that the descriptors overall quality judgment, as well as clarity, gustatory cleanness, dry fruit, and olfactory cleanness are linked with treatment A. The chemical profiling instead mostly described the evolution of the wines during the storage.

DOI:

Publication date: September 13, 2021

Issue: Macrowine 2021

Type: Article

Authors

Emanuele Boselli

Faculty of Science and Technology, Free University of Bozen-Bolzano, Piazza Università 5, 39100 Bolzano, Italy; Oenolab, NOITechpark, via Alessandro Volta 13, 39100 Bolzano BZ, Italy,Edoardo Longo, Faculty of Science and Technology, Free University of Bozen-Bolzano, Piazza Università 5, 39100 Bolzano, Italy; Oenolab, NOITechpark, via Alessandro Volta 13, 39100 Bolzano BZ, Italy Giulia Windisch, Faculty of Science and Technology, Free University of Bozen-Bolzano, Piazza Università 5, 39100 Bolzano, Italy; Oenolab, NOITechpark, via Alessandro Volta 13, 39100 Bolzano BZ, Italy Emanuele Boselli, Faculty of Science and Technology, Free University of Bozen-Bolzano, Piazza Università 5, 39100 Bolzano, Italy; Oenolab, NOITechpark, via Alessandro Volta 13, 39100 Bolzano BZ, Italy

Contact the author

Keywords

wine storage, vibrations, sensory analysis, chemometrics, natural magnetic levitation

Citation

Microclimate manipulation: leveraging the microclimatic differences created by diverse trellis systems to investigate the metabolic plasticity of Vitis vinifera cv. Chenin blanc in a model vineyard

Field-grown crops such as grapevines, rely on ambient environmental conditions for growth and development.

Study of cross-modal interactions through sensory and chemical characteristics of italian red wines

This work aimed at investigating red wine olfactory–oral cross-modal interactions, and at testing their impact on the correlations between sensory and chemical variables. Seventy-four Italian red whole wines (WWs) from 10 varieties, and corresponding deodorized wines (DWs), were evaluated by sensory descriptive assessment.

Short-term canopy strategies to enhance grapevine adaptation to climate change

Context and purpose of the study – Viticulture faces significant challenges due to climate change, with increased frequency of extreme weather events impacting grapevine growth, grape quality, and wine production.

Agronomic and qualitative behaviour of cv. Tempranillo according to three vine spacing on two different hydric-edaphic situations in the Duero river valley

The knowledge of the influence of soil conditions on the effects that different plant densities provoke in the agronomic grapevine behaviour becomes very interesting since it allows to focus the vineyard management on the optimization of the natural, hydric and human resources.

Drought affects vineyard soil microbiome: approach to select micro-organisms adapted to drought

Climate transition with frequent heat waves and long drought periods threatens grapevine productivity and wine quality in the Mediterranean regions. Microorganisms are known to contribute to plant fitness and to stimulate plant resilience against biotic and abiotic factors.
In this work, it was assessed the impact of long-term drought on soil microbiome associated to grapevine in open field in Alentejo, renowned Portuguese wine region.
Soil and plant tissues of drought tolerant Syrah cultivar exposed to three irrigation levels (100%- FI, 50%-DI ETc; rain-fed–NI) for 5 years were sampled for two years (2022-2023). Metabarcoding analysis of soil bacteria (16S V4 rRNA) and fungi (ITS sub-region) were integrated with soil physiochemical properties and leaves´ physiological data. Pre-dawn leaf water potential and stomatal conductance confirmed the imposed drought scenarios. Even though, α- and β-diversity of prokaryotic and eukaryotic microbial communities differed more by season than water availability, samples clustered according to soil water content and pH (p<0.05). Fungal communities show higher differences in the structure across treatments than bacteria. In 2023, 16 bacterial against 61 fungal ASVs were significatively different in abundance between NI and FI. Beijerinckiaceae, Bradyrhizobiaceae (Alphaproteobacteria) and Nocardioidaceae, Streptomycetaceae (Actinobacteria) families resulted to be significatively more abundant in NI, while Ascomycota, Basidyomicota and Mortierellomycota are the most important fungal phyla in NI. With culturomics data, this study aims to gather insights into how soil microbiome is remodelled under drought and contribute to select bacterial and fungal taxa with potential to mitigate drought stress in vineyards.