期刊
FOOD CHEMISTRY
卷 230, 期 -, 页码 271-280出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2017.03.047
关键词
Phenolics; Glucosinolates; Antioxidant activity; Kale; Cloudy apple juice
资金
- project Bioactive food [POIG 01.01.02-00-061/09]
The aim of this study was to determine the polyphenols, glucosinolates and ascorbic acid content as well as antioxidant activity of beverages on the base of apple juice with addition of frozen and freeze-dried curly kale leaves. Upon enrichment with frozen (13%) and freeze-dried curly kale (3%), the naturally cloudy apple juice was characterized by an increase in phenolic compounds by 2.7 and 3.3-times, accordingly. The antioxidant activity of beverages with the addition of curly kale ranged from 6.6 to 9.4 p.mol Trolox/mL. The obtained beverages were characterized glucosinolates content at 117.6-167.6 mg/L and ascorbic acid content at 4,1-31,9 mg/L. The results of sensory evaluation of colour, taste and consistency of apple juice and beverages with the addition of kale did not differ significantly prior to pasteurization (P <= 0.05), whereas after the pasteurization the evaluated factors decreased significantly. (C) 2017 Elsevier Ltd. All rights reserved.
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