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Bibliographic record number: 617579

Journal

Authors: Drmic, Helena; Vojvodic, Aleksandra; Komes, Drazenka; Skrabal, Svjetlana; Busic, Arijana; Belscak-Cvitanovic, Ana; Milicevic, Borislav
Title: Changes in the content of polyphenols and antioxidant capacity of chocolate liqueurs during three months of storage
Source: Technologica acta (1840-0426) 6 (2013), 1; 1-9
Paper type: article
Keywords: antioxidants; chocolate liqueurs; polyphenols; storage
Abstract:
With the increasing interest for functional products, liqueurs have become an interesting area of research, trying to confirm the correlation between their chemical composition and benefitial health effects. Chocolate, as a good source of polyphenols, and ethanol, an effective solvent for their extraction, are a good starting point for production of chocolate liqueurs as potential functional products. The aim of this research was to determine changes in the content of polyphenols and antioxidant capacity of chocolate liqueurs produced from chocolates with cocoa solids content of 30 % and 72 % in combination with two concentrations of ethanol (20 % and 30 %) during 3 months of storage. Contents of total phenols, flavonoids, flavan-3-ols and proanthocyanidins were determined spectrophotometrically as well as the antioxidant capacity, using 2, 2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging assay. The highest content of total phenols, flavonoids, flavan-3-ols and proanthocyanidins was determined in chocolate liqueur made from chocolate containing 72% of cocoa solids combined with 30% ethanol.
Project / theme: 058-0000000-3470
Original language: ENG
Category: Znanstveni
Research fields:
Food processing technology
URL: http://www.tf.untz.ba/technologica_acta/Technologica_Acta_Vol6_No1_2013.pdf
http://www.tf.untz.ba/technologica_acta.htm
URL cjelovitog rada: http://www.tf.untz.ba/technologica_acta/Technologica_Acta_Vol6_No1_2013.pdf
Google Scholar: Changes in the content of polyphenols and antioxidant capacity of chocolate liqueurs during three months of storage
Contrib. to CROSBI by: Aleksandra Vojvodić (avojvodic@pbf.hr), 8. Vel. 2013. u 14:08 sati



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