期刊
MOLECULES
卷 28, 期 4, 页码 -出版社
MDPI
DOI: 10.3390/molecules28041824
关键词
functional beverages; bioactive compounds; phenolic compounds; Hibiscus sabdariffa
Through this study, it was found that Hibiscus sabdariffa has great potential to be used as an ingredient in products with natural-based ingredients. The content of bioactive compounds in Hibiscus beverages was characterized and their bioaccessibility was evaluated. Results showed significant differences in the content of bioactive compounds before and after in vitro intestinal digestion, indicating that digestion significantly affects the profile of bioactive compounds in the beverage.
Hibiscus sabdariffa possess great versatility to be used as an ingredient for a whole range of products with natural-based ingredients, which are growing in popularity due to the health benefits of bioactive compounds (BC). Therefore, the objective of this study was to characterize the BC content in Hibiscus beverages and to evaluate their in vitro bioaccessibility. Results showed significant differences (p < 0.05) in the total contents of BC prior to the in vitro intestinal digestion. Hibiscus acid was the most abundant compound identified. Thirty-five compounds were identified in the Hibiscus beverage at the initial stage, while a maximum of 15 compounds were quantified in the different fractions of gastrointestinal digestion. After digestion, significant differences were found compared with the initial content of BC. That phenolic acids were the less bioaccessible group, while flavonoids were the most diverse. Principal components analysis showed different clusters and changes in the profiles of BC present at the initial stage and those bioaccessible, showing that intestinal digestion significantly affects the BC profile of the beverage.
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