Effect of storage temperature on the decay of catechins and procyanidins in dark chocolate

Autor: Aleksandra N. Pavlović, Jelena M. Mrmošanin, Jovana N. Krstić, Snežana S. Mitić, Snežana B. Tošić, Milan N. Mitić, Biljana B. Arsić, Ružica J. Micić
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: Czech Journal of Food Sciences, Vol 35, Iss 4, Pp 360-366 (2017)
Druh dokumentu: article
ISSN: 1212-1800
1805-9317
DOI: 10.17221/265/2016-CJFS
Popis: The storage stability of catechins, procyanidins, and total flavonoids in dark chocolate was investigated. The obtained results showed that the degradation of flavonoids followed first-order reaction kinetics. Temperature-dependent degradation was modelled on the Arrhenius equation. The activation energy for the degradation of dark chocolate flavonoids during storage was 61.2 kJ/mol. During storage, flavonoids degraded more rapidly at 35°C (k = 7.8 × 10-3/day) than at 22°C (k = 5.4 × 10-3/day) and 4°C (k = 2.2 × 10-3/day).
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