Protection of some aroma volatiles in a model wine medium by sulphur dioxide and mixtures of glutathione with caffeic acid or gallic acid
Φόρτωση...
Ημερομηνία
Συγγραφείς
Roussis, I. G.
Sergianitis, S.
Τίτλος Εφημερίδας
Περιοδικό ISSN
Τίτλος τόμου
Εκδότης
Wiley
Περίληψη
Τύπος
Είδος δημοσίευσης σε συνέδριο
Είδος περιοδικού
peer reviewed
Είδος εκπαιδευτικού υλικού
Όνομα συνεδρίου
Όνομα περιοδικού
Flavour and Fragrance Journal
Όνομα βιβλίου
Σειρά βιβλίου
Έκδοση βιβλίου
Συμπληρωματικός/δευτερεύων τίτλος
Περιγραφή
Sulphur dioxide and mixtures of glutathione with caffeic acid or gallic acid were tested as inhibitors of the decrease of isoamyl acetate, ethyl hexanoate and linalool during storage of a model wine medium. Model wine samples were analysed by SPME and GC-MS. Isoamyl acetate, ethyl hexanoate and linalool decreased during storage of the model wine medium containing 0, 20, 40 or 60 mg/l free SO2. SO2 protected the three volatiles at 20 (isoamyl acetate), 40 (ethyl hexanoate) and 60 mg/l (linalool). Mixtures of glutathione with caffeic acid or gallic acid were also protective; they were more active at 10 + 30 mg/l than at 5 + 15 mg/l. Glutathione + caffeic acid was more effective than glutathione + gallic acid. In most cases, SO2 at 40 mg/l increased the protective effect of the mixtures. SO2 at 60 mg/l exhibited protective ability comparable to that of glutathione + gallic acid 5 + 15 mg/l. The present results indicate that SO2 protects some wine aroma volatiles, but at high concentrations. On the other hand, mixtures of the wine constituents glutathione + caffeic acid or gallic acid are more effective at concentrations similar to those existing in wines. Copyright (C) 2008 John Wiley & Sons, Ltd.
Περιγραφή
Λέξεις-κλειδιά
wine, volatiles, aroma, glutathione, caffeic acid, gallic acid, sulphur dioxide, white wines, fluorescence detection, oxidation, storage, inhibition, esters, identification, fermentation, oxygenation
Θεματική κατηγορία
Παραπομπή
Σύνδεσμος
<Go to ISI>://000253137600006
http://onlinelibrary.wiley.com/store/10.1002/ffj.1852/asset/1852_ftp.pdf?v=1&t=h0e0fswc&s=a1c7c9a7b01df2ddea36d4105e0ffd5ba1efbd0e
http://onlinelibrary.wiley.com/store/10.1002/ffj.1852/asset/1852_ftp.pdf?v=1&t=h0e0fswc&s=a1c7c9a7b01df2ddea36d4105e0ffd5ba1efbd0e
Γλώσσα
en
Εκδίδον τμήμα/τομέας
Όνομα επιβλέποντος
Εξεταστική επιτροπή
Γενική Περιγραφή / Σχόλια
Ίδρυμα και Σχολή/Τμήμα του υποβάλλοντος
Πανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Χημείας