Abstract：
:Red cabbage contains glucosinolates, precursors to health-promoting isothiocyanates. However, raw cabbage often releases mainly epithionitriles and nitriles from glucosinolates. To increase isothiocyanate formation, the effect of acid usage in the preparation of red cabbage was evaluated. Moreover, the effects of the chosen boiling method (acidic boiled red cabbage versus neutral boiled blue cabbage) on glucosinolate degradation were investigated using UHPLC-DAD-ToF-MS and GC-MS. The addition of vinegar significantly increased isothiocyanate formation of cabbage salad from 0.09 to 0.21 µmol/g fresh weight, while lemon juice only slightly increased isothiocyanate formation. Acidic boiled red cabbage degraded glucosinolates and increased nitrile formation, while in neutral boiled blue cabbage, glucosinolates were stable. However, shortly boiled blue cabbage (5 min) had the highest isothiocyanate levels (0.08 µmol/g fresh weight). Thus, for a diet rich in isothiocyanates it is recommended to acidify raw cabbage salads and prepare shortly boiled blue cabbage instead of red cabbage.
journal_name
Food Chemjournal_title
Food chemistryauthors
Hanschen FSdoi
10.1016/j.foodchem.2020.126694subject
Has Abstractpub_date
2020-08-15 00:00:00pages
126694eissn
0308-8146issn
1873-7072pii
S0308-8146(20)30556-2journal_volume
321pub_type
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