Abstract
Glutathione (GSH) was analyzed by high performance liquid chromatography following derivatization using Ellmann's reagent in the berries of 28 grape varieties from different locations and in the corresponding white musts. The hydroxycinnamic acid to glutathione molar ratios were determined for each sample. GSH concentration varied from 56 to 372 µmole/kg in grapes and from 46 to 333 mM in musts. The hydroxycinnamic acids to glutathione ratio was consistently higher in the entire berries than in the corresponding musts. The extreme values were 1.3 and 12.7 in berries and 0.6 and 10.5 in musts. Growing site related differences were also pointed out.
- Received March 1989.
- Copyright 1989 by the American Society for Enology and Viticulture
Sign in for ASEV members
ASEV Members, please sign in at ASEV to access the journal online.
Sign in for Institutional and Non-member Subscribers
Log in using your username and password
Pay Per Article - You may access this article (from the computer you are currently using) for 2 day for US$10.00
Regain Access - You can regain access to a recent Pay per Article purchase if your access period has not yet expired.