期刊
FOOD CHEMISTRY
卷 365, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2021.130498
关键词
Sauerkraut; Sauerkraut juice; Glucosinolates; Isothiocyanates; Fermentation; Ascorbigen
资金
- Foundation for Polish Science (FNP)
Both sauerkraut and sauerkraut juice are good sources of bioactive compounds such as ascorbigen and isothiocyanates, with different stability of individual compounds during storage. The absolute content of phytochemicals depends on the native GLS content in the raw material and its bacterial composition.
Sauerkraut juice has not gained much scientific attention to date. Therefore, this study aimed to track changes in glucosinolates (GLS) during fermentation of white cabbage and the formation of corresponding breakdown products in sauerkraut and sauerkraut juice separately and to evaluate their stability during prolonged storage of the final products. The results obtained indicate that both sauerkraut and sauerkraut juice are a good source of bioactive compounds: ascorbigen and isothiocyanates. The stability of individual compounds during storage varied, and the absolute content of phytochemicals depended on the content of native GLS in the raw material and its bacterial composition. The dominant compound was ascorbigen, stable in acidic pH in both sauerkraut and sauerkraut juice, even after prolonged storage. Sauerkraut juice was also found as a rich source of bioactive isothiocyanates. One 250 mL glass of sauerkraut juice (after two weeks) can deliver approx. 75 mu mol of bioactive ascorbien and isothiocyanates, hence it can be considered as functional food, delivering beneficial health effects.
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