期刊
LWT-FOOD SCIENCE AND TECHNOLOGY
卷 72, 期 -, 页码 182-188出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.lwt.2016.04.056
关键词
Elderberry food products; Phenolic compounds; Cyanogenic glycosides; Heat treatment
资金
- Slovenian Research Agency (ARRS) [P4-0013-0481]
Elderberry fruit and its food products are not only a rich source of phenolics, boosting their antioxidant activity, but also contain harmful cyanogenic glycosides. In order to assess the potential positive/negative effects of consuming elderberry-based products their biochemical profile and levels of individual compounds were identified with the aid of high-performance liquid chromatography (HPLC) coupled with mass spectrophotometry (MS). Cyanidin-3-sambubioside and cyanidin-3-glucoside were the prevalent compounds among phenolics and sambunigrin among cyanogenic glycosides in all analyzed elderberry products. Processing considerably affects the content of elderberry phenolics and cyanogenic glycosides. The levels of phenolics decreased from 958 mg/kg in unprocessed control berries to 343 mg/kg in elderberry liqueur, 337 mg/kg in spread, 162 mg/kg in tea and 114 mg/kg in elderberry juice. Higher temperatures not only reduced the content of beneficial compounds, but also decreased the levels of harmful cyanogenic glycosides for 44% in elderberry juice, for 80% in tea and for as much as 96% in elderberry liqueur and spread. (C) 2016 Elsevier Ltd. All rights reserved.
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