Stefan Nauer
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View article: Metabolic composition of healthy and infected Grüner Veltliner grapes and wine assessed by high resolution mass spectrometry
Metabolic composition of healthy and infected Grüner Veltliner grapes and wine assessed by high resolution mass spectrometry Open
Grapevines are susceptible to a wide range of fungal diseases that result in significant annual economic losses in the global wine industry. The present study uses a non-targeted mass spectrometry approach to explore metabolic profiles of …
View article: Experiments with oenological methods to increase the spicy aroma in Austrian Grüner Veltliner wines
Experiments with oenological methods to increase the spicy aroma in Austrian Grüner Veltliner wines Open
Grüner Veltliner is Austria's most important grape variety, accounting for 32.5% of the vineyard area (a total of around 14,500 ha). There is a noticeable trend with this variety away from fresh, fruity wines towards more spicy, single-vin…
View article: Reduction in Off-Flavors in Wine Using Special Filter Layers with Integrated Zeolites and the Effect on the Volatile Profile of Austrian Wines
Reduction in Off-Flavors in Wine Using Special Filter Layers with Integrated Zeolites and the Effect on the Volatile Profile of Austrian Wines Open
In the course of the present study, filter layers with embedded zeolites (patented layer of the company Filtrox (Zwingen, Switzerland) with the brand name Fibrafix® TX) were tested for the elimination of the wine defects, cork taint (2,4,6…
View article: Impact of a combined pulsed electric field (PEF) and enzymatic mash treatment on yield, fermentation behaviour and composition of white wine
Impact of a combined pulsed electric field (PEF) and enzymatic mash treatment on yield, fermentation behaviour and composition of white wine Open
The aim of this work was to study the combined application of a pulsed electric field (PEF) and an enzymatic treatment to white wine mash. The resulting impact of membrane permeabilisation by electroporation and pectin degradation by enzym…
View article: Breeding of fungal resistant varieties derived from Grüner Veltliner by chromosomal selection
Breeding of fungal resistant varieties derived from Grüner Veltliner by chromosomal selection Open
\nTraditional cultivar Grüner Veltliner is the most appreciated vine in Austrian viticulture. Due to organic growing the demand for mildew resistance within the same wine profile has increased. Cross breeding can provide such new genotypes…
View article: Determination and elimination of rotten grape aroma by filter layers with selective adsorbers
Determination and elimination of rotten grape aroma by filter layers with selective adsorbers Open
\nThe most important mould associated substances like geosmine, 2-methylisoborneol, 1-octen-3-ol in wines of different grape varieties from Austria and also from other foreign countries were analysed by a HS-SPME GC-MS method. These substa…