Characterization of sinapyl derivatives in pineapple (Ananas comosus [L.] Merill) juice

被引:20
|
作者
Wen, L
Wrolstad, RE [1 ]
Hsu, VL
机构
[1] Oregon State Univ, Dept Food Sci & Technol, Corvallis, OR 97331 USA
[2] Oregon State Univ, Dept Biochem & Biophys, Corvallis, OR 97331 USA
关键词
pineapple juice; Ananas comosus [L.] Merill; phenolics; sinapyl derivatives; glutathione;
D O I
10.1021/jf9808067
中图分类号
S [农业科学];
学科分类号
09 ;
摘要
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.
引用
收藏
页码:850 / 853
页数:4
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