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The effect of exogenous pectinase on DMHF and derivatives in clarified strawberry juice ( Fragaria × ananassa , cv. Elsanta)
Author(s) -
Mura Emanuela,
Zabetakis Ioannis
Publication year - 2002
Publication title -
flavour and fragrance journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.393
H-Index - 70
eISSN - 1099-1026
pISSN - 0882-5734
DOI - 10.1002/ffj.1109
Subject(s) - pectinase , fragaria , chemistry , glucoside , fruit juice , botany , food science , enzyme , biochemistry , biology , medicine , alternative medicine , pathology
The effect of exogenous pectinase on the levels of 2,5‐dimethyl‐4‐hydroxy‐2 H ‐furan‐one (DMHF) and DMHF‐glucoside was studied in clarified strawberry juice ( Fragaria × ananassa , cv. Elsanta). The extent of conversion of DMHF‐malonyl glucoside to DMHF‐glucoside and DMHF was monitored at three different temperatures (45 °C, 50 °C and 60 °C) and at three different pH values (pH 3.0, 4.0 and 5.4). The effect of using two different concentrations of pectinase was also studied. Based on these results, the endogenous levels of DMHF‐malonyl glucoside were calculated for the first time in strawberries. Copyright © 2002 John Wiley & Sons, Ltd.