IVAS 2022 banner
IVES 9 IVES Conference Series 9 IVAS 9 IVAS 2022 9 A new chemiluminescence method related to molecules derived from Botrytis cinerea for characterization of Aszu wines from Tokaj, from Hungary

A new chemiluminescence method related to molecules derived from Botrytis cinerea for characterization of Aszu wines from Tokaj, from Hungary

Abstract

For the chemical characterization of Aszu wines from Tokaj region our aim is to develop a biochemical method which is related to Botrytis cinerea. As in these wines there are continuously present small amounts of Cytochrome C enzyme derived from apoptotic cells infected with Botrytis (1), and H2O2 produced during the oxidation of alcohols by Botrytis (2), and their oxidative interaction can produce reactive “ferril-peroxide complexes  inducing chemiluminescence (photon emission) (3), the  principle of method is as follows: the capability of various Aszu wines is measured by luminometer how they can stimulate the production of chemiluminescence of basal biochemical reaction (Cytochrome C + H2O2) compared to a standard solution of „artificial furmint”. The size of stimulation is expressed numerically by „Index of Stimulation” (I.S.). Based on a great number of measurements evaluated by statistical methods we created three categories for the quality of Aszu wines from the aspect of Botrytis effects valid for given laboratory condition. „Tokaj Aszu of poor quality”: I. S. < 2,79„Tokaj Aszu of outstanding quality”: I.S. = 2,80-3,54„Tokaj Aszu of excellent quality”: S.I. > 3,55 These categories correlate well with other factors of Aszu quality (aroma, flavour, smell) but do not cover them totally.  The I.S. values of Aszu wines show a significantly positive correlation with the concentrations of gluconic acid (p

DOI:

Publication date: June 23, 2022

Issue: IVAS 2022

Type: Article

Authors

Sándor Sipka1, NagyAndrea1, Csősz Éva2 and Baráth Sándor1

1Division of Clinical Immunology University of Debrecen, Móricz Zs. Str. 22. 4032 Debrecen, Hungary
2Department of Biochemistry and Molecular Biology University of Debrecen, Hungary

Contact the author

Keywords

chemiluminescence assay, Botrytis cinerea, Aszu of Tokaj, Cytochrome C, hydrogen peroxide

Tags

IVAS 2022 | IVES Conference Series

Citation

Related articles…

Metabolomic fingerprint changes during the alcoholic fermentation at industrial level of Muscat of Alexandria grape must

Muscat of Alexandria is one of the oldest cultivars still existing, globally recognized for its distinctive aroma, and the primary grape variety cultivated in the Greek Island of Lemnos, yielding various white wines with designated origins.

Application of uv-led in wine as an alternative to sulphur dioxide

Sulfites (SO2) are commonly used in the wine industry to preserve products during storage for antiseptic and antioxidant purposes (Oliveira et al., 2011).

Metodología para la zonificación de áreas vitícolas: aplicación en un area modelo del Penedés

Se propone una metodología para la zonificación del viñedo, a partir de las características climáticas, edáficas y geomorfológicas, en una área de 3700 ha del Penedés

Creativini: an augmented reality card game to promote the learning of the reasoning process of a technical management route for making wine 

Nowadays, the entire viticultural and enological process is wisely thought out according to the style of wine to be produced and the local climatic conditions. Acquiring the approach of a technical management route specific for wine production remains a complex learning process for students. To enhance such learning, The Ecole d’Ingénieurs de PURPAN (PURPAN), an engineering school located in Toulouse southwest France, has recently developed Creativini, a collaborative card game in English made of 150 cards spread into 14 batches. Students in groups of 3 to 6 must design a technical production route, from plant material to bottling.

Amyndeon‐naoussa: the two faces of Xinomavro

Xinomavro is the most important indigenous red wine variety grown in Northern Greece. It participates in the production of several PGI wines in Macedonia while from 100% Xinomavro the PDO “Amyndeon” and “Naoussa” are produced. The viticultural area of Amyndeon lies in a plateau of 550 ‐700 m of altitude, in a semi‐continental climate with mostly deep sandy loamy soils derived from limestone and marl bedrocks while in Naoussa, Xinomavro is grown in a Mediterranean climate on more heavy textured soils, sandy clay loam to clay, derived from ophiolithic, limestone and marl bedrocks, in an altitude which varies from 150 to 400 m. Different soil, climate and viticultural technique interactions, result in great variability with respect to morphological, ampelographical and physiological characters of Xinomavro as well as in the characteristics of the wines produced.