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Journal of Food and Nutrition Research
Súhrny čísla 2 / 2025
Fedorková, S. – Musilová, J. – Cifrová, M. – Harangozo, Ľ. – Šnirc, M.
Sweet chestnut shells (Castanea sativa Mill.) as a valuable resource: antioxidant activities, polyphenol content, and mineral composition
Journal of Food and Nutrition Research, 64, 2025, č. 2, s. 139-146
Silvia Fedorková, Institute of Food Sciences, Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture in Nitra, Tr. A. Hlinku 2, 949 76 Nitra, Slovakia. E-mail: xfedorkovas@uniag.sk
Original article
Received 10 January 2025; 1st revised 22 February 2025; accepted 19 April 2025; published online 2 June 2025.
Súhrn: Sweet chestnut (Castanea sativa Mill.) is a key tree species in Europe, with its shells serving as a nutrient-rich byproduct. The aim of this research is to analyse the shells of sweet chestnuts from various locations in Slovakia to find out how important they are in terms of reuse. Using spectrophotometric methods, the total content of polyphenols, antioxidant activity, and mineral substances were determined. Total content of polyphenols (expressed as gallic acid equivalents) ranged from 6.17 g·kg-1 dry weight (DW) in Modrý Kameň location to 27.94 g·kg-1 DW in Rovňany location. Antioxidant activity was determined using three assays based on free radical scavenging capacity, the ability to neutralise synthetic radicals, and reduction of ferric ions. The results (expressed as Trolox equivalents) ranged from 3.44 mmol·kg-1 to 4.58 mmol·kg-1 DW, 0.083 mmol·kg-1 to 0.237 mmol·kg-1 DW, and 70.43 mmol·kg-1 to
Kľúčové slová: sweet chestnut shells; polyphenols; antioxidant activity; mineral substances
Na stiahnutie:
jfnr-2025-2-pp139-146-fedorkova.pdf (PDF, 390.85 Kb, 286x)