TitleCharacterization of sinapyl derivatives in pineapple (Ananas comosus [L.] Merill) juice.
Publication TypeJournal Article
Year of Publication1999
AuthorsWen, L, Wrolstad, RE, Hsu, VL
JournalJ Agric Food Chem
Volume47
Issue3
Pagination850-3
Date Published1999 Mar
ISSN0021-8561
KeywordsBeverages, Chromatography, High Pressure Liquid, Fruit, Oligopeptides, Phenols
Abstract

Three previously unidentified phenolic compounds were found in pineapple (Ananas comosus [L.] Merill) juice in substantial concentrations and were isolated by semipreparative reverse phase HPLC. The structures were elucidated from UV spectra, acid hydrolysis, and subsequent amino acid analysis, mass spectrometry, and two-dimensional NMR spectroscopy. The compounds are identified as S-sinapyl-L-cysteine, N-L-gamma-glutamyl-S-sinapyl-L-cysteine, and S-sinapylglutathione.

Alternate JournalJ. Agric. Food Chem.
PubMed ID10552379