Journal
JOURNAL OF FUNCTIONAL FOODS
Volume 13, Issue -, Pages 1-10Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jff.2014.12.021
Keywords
Black carrot; Processing; Storage; Bioaccessibility; Anthocyanin; Antioxidant
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Funding
- Istanbul Technical University, Scientific Research Projects (BAP) Unit
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There is increasing interest in food use of black carrots because of the colour stability of the anthocyanins and the substantial quantity of bioactive compounds. The influence of jam and marmalade processing, storage conditions and in vitro gastrointestinal digestion on colour attributes, total and individual anthocyanin content, and antioxidant capacity of black carrots was examined. Anthocyanins (87.6-95.6%) and antioxidant capacity (79.289.5%) were significantly decreased as a result of jam and marmalade processing (p < 0.05). After 20 weeks of storage, the preserved anthocyanins and antioxidant capacity in samples stored at 4 degrees C (53.4-81.0% and 45.2-92.0%, respectively) were higher than samples stored at 25 degrees C (7.8-69.3% and 12.8-60.9%, respectively). Additionally percent recovery of bioaccessible anthocyanins and antioxidant capacity determined using the FRAP assay increased after jam and marmalade processing (0.8-10.3 and 2.6-4.3%, respectively). The current study introduced a detailed understanding of the alterations in colour properties, anthocyanin content and antioxidant capacity of black carrot jams and marmalades, which can serve as novel sources of functional foods. (C) 2014 Elsevier Ltd. All rights reserved.
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