Publications by authors named "Marina Rudenko"
Article Synopsis
- Research is focusing on developing high-quality products with antioxidants due to growing demand, especially in whiskey, where knowledge about its antioxidant properties is limited.
- This study examines how the aging conditions of whiskey affect its phenolic composition and antioxidant capacities using various analytical methods.
- Findings include the creation of whiskey samples with enhanced antioxidant properties by utilizing alcoholic extracts from grape stems, which could lead to improved monitoring techniques and new alcoholic products rich in beneficial compounds.
Background: This study investigated the ultraviolet (UV) absorption spectra of various types and ages of grape wines and the correlation these spectra presented with their phenolic constituents. Firstly, the differences in UV spectra were characterized for different wine samples, depending on their type and age.
Methods: The following methods were used in this study: ultraviolet visible spectrophotometry, Folin-Ciocalteu spectrophotometric method, high-performance liquid chromatography.
Article Synopsis
- - Species rely on environmental cues, like degree-days, to time their phenological events and exhibit varying responses based on their location and the season.
- - The study analyzed data from 91 taxa across 472 sites in the former Soviet Union, finding that spring phenological events advance more consistently with temperature cues (cogradient variation), while autumn events are less responsive (countergradient variation).
- - Despite some local adaptations, phenological events generally do not keep pace with environmental cues, particularly lagging further in earlier years, suggesting differing impacts of climate change on spring and autumn species responses.
An amendment to this paper has been published and can be accessed via a link at the top of the paper.
View Article and Find Full Text PDFWe present an extensive, large-scale, long-term and multitaxon database on phenological and climatic variation, involving 506,186 observation dates acquired in 471 localities in Russian Federation, Ukraine, Uzbekistan, Belarus and Kyrgyzstan. The data cover the period 1890-2018, with 96% of the data being from 1960 onwards. The database is rich in plants, birds and climatic events, but also includes insects, amphibians, reptiles and fungi.
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