DOI: 10.11118/978-80-7509-996-9-0180
VPLYV RÔZNYCH SPÔSOBOV PRÍPRAVY KÁVY NA ANTIOXIDAČNÉ VLASTNOSTI KÁVOVÉHO LÓGRU / THE INFLUENCE OF DIFFERENT COFFEE PREPARATION METHODS ON THE ANTIOXIDANT PROPERTIES OF SPENT COFFEE GROUNDS
- Dominika Kotianová1, Tomáš Pencák1, Daniela Slámová1, Dani Dordević1, Bohuslava Tremlová1
- 1 Ústav hygieny a technologie potravin rostlinného původu Fakulta veterinární hygieny a ekologie, VETUNI, Palackého tř. 1946/1, 612 42 Brno
The aim of this paper is to highlight the issue of waste management in the food industry, with a particular focus on the coffee sector. This paper deals with the changes in the antioxidant capacity of the spent coffee ground (SCG) after different coffee preparation methods such as pour-over, Cold Brew, V60, and French press. A mixture of Arabica and Robusta (dark roast) was used to prepare the samples for the experimental part. The different types of coffee were prepared according to the standard procedures for each specific preparation method, the coffee grounds were then left in the dryer (12 h, 50 °C). FRAP, CUPRAC, and total polyphenol content using Folin-Ciocalteu reagent were used to assess the antioxidant activity of the extracts, all samples were determined spectrophotometrically. The SCG sample analysed by the CUPRAC method, which was prepared by Cold Brew extraction, showed the highest level of antioxidant activity compared to the others (159.724 ± 1.147 μmol Trolox/g). The results indicate that SCG is a potential source of bioactive compounds for the production of new functional foods.
Keywords: kávová usadenina, cirkulačná ekonomika, antioxidační aktivita
pages: 180-186, online: 2024
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