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Glasnik Zaštite Bilja, Vol. 45. No. 3., 2022.

Original scientific paper

https://doi.org/10.31727/gzb.45.3.10

Influence of long maceration on the quality of Graševina wine in Kutjevo wine-growing hill

Valentina Obradović orcid id orcid.org/0000-0001-6018-0769 ; Veleučilište u Požegi, Hrvatska
Helena Marčetić orcid id orcid.org/0000-0002-6093-9947 ; Veleučilište u Požegi, Hrvatska
Brankica Svitlica ; Veleučilište u Požegi, Hrvatska
Maja Ergović Ravančić orcid id orcid.org/0000-0002-5697-8468 ; Veleučilište u Požegi, Hrvatska
Svjetlana Škrabal ; Veleučilište u Požegi, Hrvatska
Josip Mesić ; Veleučilište u Požegi, Hrvatska

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Abstract

Although classical production of white wines involves the fermentation of must, recently there has been a trend in the production of white wines with maceration processor fermentation of pomace. The aim of this paper is to determine the influence of long maceration of pomace on the quality of Graševina wine. The research was conducted in 2021 in the vineyards and wine cellar of the Polytechnic of Požega in the Kutjevo wine-growing hill. After harvesting, a control treatment was white wine produced by the classic production process, and a long maceration process was carried out on other two treatments over a period of 3 months, in two treatments - one with sulfites during primary processing and the other without sulfiting. The following basic parameters were determined in wines: alcoholic strength, reducing sugars, total acidity, malic, lactic acid, volatile acidity, pH, absorbance at 280 nm, total phenols and antioxidant activity by DPPH method. There was a statistically significant difference in the total phenols content, as well as antioxidant activity, with the highest values in the macerated sample containing SO2. Organoleptic evaluation of samples was performed by trained evaluators, using the 100-point method. The highest average score of 87 points was given to wine produced by long maceration with regular sulfiting during primary processing. Control treatment was rated lower by 72 points. Wine produced by long maceration without the use of sulfiting in the primary processing was evaluated with an average score of 66 points with a few remarks about the oxidation pronounced in the wine aroma.

Keywords

Graševina; maceration; sulfiting; polyphenols; antioxidant activity

Hrčak ID:

276132

URI

https://hrcak.srce.hr/276132

Publication date:

14.6.2022.

Article data in other languages: croatian

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License (open-access, http://creativecommons.org/licenses/by/2.5/):

Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

License (open-access):

Ovo je članak s otvorenim pristupom distribuiran pod uvjetima licence Creative Commons Attribution, koji dopušta neograničenu upotrebu, distribuciju i reprodukciju u bilo kojem mediju, pod uvjetom da se izvorno djelo pravilno citira.

License (open-access):

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Date received: 22 February 2022

Date accepted: 1 April 2022

Publication date: 14 June 2022

Volume: 45

Issue: 3

Pages: 78-84

DOI: 10.31727/gzb.45.3.10

Article Information (continued)

Categories:

Subject: Izvorni znanstveni članak

Categories:

Subject: Original scientific paper

Keywords:

Keyword: Graševina

Keyword: maceracija

Keyword: sulfitiranje

Keyword: ukupni fenoli

Keyword: antioksidativna aktivnost

Keywords:

Keyword: Graševina

Keyword: maceration

Keyword: sulfiting

Keyword: polyphenols

Keyword: antioxidant activity

Utjecaj duge maceracije na kakvoću vina sorte 'Graševina' u vinogorju Kutjevo

Translated Title (en): Influence of long maceration on the quality of Graševina wine in Kutjevo wine-growing hill

Valentina Obradović[1]

Email: vobradovic@vup.hr

Helena Marčetić[1]

Brankica Svitlica[1]

Maja Ergović Ravančić[1]

Svjetlana Škrabal[1]

Josip Mesić[1]

 

[1] Veleučilište u Požegi, Hrvatska

Abstract

Iako klasična proizvodnja bijelih vina podrazumijeva fermentaciju mošta, suvremeni trendovi podrazumijevaju proizvodnju bijelih vina uz maceraciju, odnosno fermentaciju masulja. Cilj ovog rada bio je utvrditi utjecaj duge maceracije grožđa na kakvoću vina 'Graševina'. Istraživanje je provedeno tijekom 2021. godine u vinogradima i vinskom podrumu Veleučilišta u Požegi u vinogorju Kutjevo. Nakon berbe, kontrolni uzorak vina proizveden je klasičnim postupkom proizvodnje bijelih vina, te su provedena dva tretmana duge maceracije u periodu od 3 mjeseca - jedan uz sulfitiranje tijekom primarne prerade a drugi bez sulfita. U vinima su analizirani osnovni parametri kakvoće, koncentracija jabučne i mliječne kiseline, optička gustoća pri 280 nm, ukupni fenoli i antioksidativna aktivnost DPPH metodom. Statistički značajna razlika zabilježena je kod ukupnih fenola, kao i antioksidativnoj aktivnosti, s najvećim vrijednostima u maceriranom uzorku uz primjenu SO2. Organoleptičko ocjenjivanje uzoraka proveli su certificirani ocjenjivači, metodom 100 bodova. Najveću prosječnu ocjenu od 87 bodova dobilo je vino proizvedeno dugom mareracijom grožđa uz redovito sulfitiranje. Kontrolni tretman slabije je ocijenjen, sa 72 boda. Vino proizvedeno dugom maceracijom bez korištenja sulfita ocjenjeno je sa 66 boda uz napomenu pojedinih ocjenjivača o izraženoj oksidaciji.

Translated Abstract

Although classical production of white wines involves the fermentation of must, recently there has been a trend in the production of white wines with maceration processor fermentation of pomace. The aim of this paper is to determine the influence of long maceration of pomace on the quality of Graševina wine. The research was conducted in 2021 in the vineyards and wine cellar of the Polytechnic of Požega in the Kutjevo wine-growing hill. After harvesting, a control treatment was white wine produced by the classic production process, and a long maceration process was carried out on other two treatments over a period of 3 months, in two treatments - one with sulfites during primary processing and the other without sulfiting. The following basic parameters were determined in wines: alcoholic strength, reducing sugars, total acidity, malic, lactic acid, volatile acidity, pH, absorbance at 280 nm, total phenols and antioxidant activity by DPPH method. There was a statistically significant difference in the total phenols content, as well as antioxidant activity, with the highest values in the macerated sample containing SO2. Organoleptic evaluation of samples was performed by trained evaluators, using the 100-point method. The highest average score of 87 points was given to wine produced by long maceration with regular sulfiting during primary processing. Control treatment was rated lower by 72 points. Wine produced by long maceration without the use of sulfiting in the primary processing was evaluated with an average score of 66 points with a few remarks about the oxidation pronounced in the wine aroma.

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