E-viri
Recenzirano
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Bestulić, Ena; Rossi, Sara; Plavša, Tomislav; Horvat, Ivana; Lukić, Igor; Bubola, Marijan; Ilak Peršurić, Anita Silvana; Jeromel, Ana; Radeka, Sanja
Journal of food composition and analysis, June 2022, 2022-06-00, Letnik: 109Journal Article
Display omitted •Maceration and non-maceration treatments increased phenolic content in wines.•Wine bitterness and astringency were least affected by cold maceration treatment.•Prolonged maceration treatment obtained the highest colour intensity.•Late harvest vinification wine was the most favourable according to taste scores. To investigate the effect of several vinification techniques aimed to enhance wine phenolic profile and sensory quality, maceration treatments of different duration and temperature (pre-fermentative cold one day maceration at 10 °C, seven days maceration at 16 °C, and prolonged post-fermentative 21 day maceration at 16 °C) and non-maceration treatments including tannin addition and late harvest grapes vinification were performed and compared to a standard white grape processing treatment. Produced wines were subjected to the analysis of phenols by high-performance liquid chromatography, colour intensity, and quantitative descriptive and hedonic sensory analysis. The increase in individual phenolic compound concentrations was mostly pronounced in maceration treatment wines, for both phenolic acids and flavan-3-ols, as well as for the sum of phenolic compound concentrations determined by high-performance liquid chromatography that tripled in relation to that determined in control treatment wine. Pre-fermentative cold maceration led to a moderate increase in phenolic compounds content without accentuating bitterness and astringency sensations. Wine phenolic composition and colour intensity were mostly affected by the prolonged post-fermentative 21 day maceration. Vinification of late harvest grapes produced a wine graded with the highest positive score for taste. The obtained distinct wine styles resulting from the application of the investigated practices may lead to a further diversification of white wine market.
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Vnos na polico
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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