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- Title
Reactions of polyphenols in pomegranate peel with nitrite under simulated stomach conditions.
- Authors
Xie, Zhenjian; Li, Xiaohong; Tang, Renyong; Wang, Guoze; Lu, Yurong; Li, Xuemei; Cheng, Kun; Li, Linzhi; He, Qiang
- Abstract
Punicalagin and ellagic acid are the major polyphenols present in pomegranate peels. The contents of α‐punicalagin, β‐punicalagin, and ellagic acid in the pomegranate peels were approximately 75, 72, and 20 µM, respectively. The reactions of polyphenols in pomegranate peels with sodium nitrite under simulated stomach conditions were studied. The reactions decreased the polyphenolic contents of the pomegranate peels and accompanied the formation of nitroso compounds. The oxidation rates followed the order ellagic acid <α‐punicalagin ≈ β‐punicalagin. The results suggested that the reactions can occur in the stomach after a meal, while the pH changes from 2 to 4.5.
- Subjects
POMEGRANATE; NITROSO compounds; ELLAGIC acid; STOMACH; SODIUM nitrites; GASTROINTESTINAL system
- Publication
Food Science & Nutrition, 2019, Vol 7, Issue 9, p3103
- ISSN
2048-7177
- Publication type
Article
- DOI
10.1002/fsn3.1173