Third-party-funded project
Title:
Flavour release from glycosidically bound precursors in fruits and other plant tissues
Project management at the University of Würzburg:
Participating scientists:
Abstract:
In order to reach the objective of the project, i.e. to recognize the still unexploited, rich potential of glycosidically bound flavour substances in plant tissues for subsequent industrial applications, the following studies were performed: (i) structural elucidation of glycoconjugated precursors and aglycons; (ii) enzymatic hydrolysis studies with characterization of the enzymes involved.
A high number of new precursors - glycosides, acylated glycosides, sugar esters, terpene phosphates and sulphates - were characterized. At the same time, enzymic, sensory and structural studies created the fundament for an effective flavour production from their bound forms.
Key words:
Flavour precursors
Flavour enzymes
Bound flavours
Glycosides
Glycosidases
HPLC-MS/MS
Projekt period:
from 12.1994 to 11.1997
Funding institution:
EU ,Granting date: 01.10.1994
Publications:
- B Withopf, E. Richling, R. Roscher, W. Schwab, P. Schreier.
(1997). Sensitive and selective screening of 6'-malonylated glucoconjugates in plants. (monograph)
- T. Beuerle, P. Schreier, W. Schwab.
(1997). (R)-3-Hydroxy-5(Z)-octenyl ß-D-glucopyranoside from Malus silvestris fruits. (monograph)
- D. Krajewski, C. Duque, P. Schreier.
(1997). Aliphatic ß-D-glucosides from Carica pubescens. (monograph)
- P. Schreier,.
(1997). Flavour release from plant tissues. Enzymatic and structural aspects. (monograph)
- B. Boss, E. Richling, P. Schreier.
(1998). HPLC-ESI-MS/MS analysis of 6'-malonylated ß-D-glucosides in plants. (monograph)
- P. Brunerie, T. Beuerle, P. Schreier, W. Schwab.
(1998). C8-Diols as precursors for new flavouring acetals. (monograph)
- B. Boss, E. Richling, M. Herderich, P. Schreier.
(1999). HPLC-ESI-MS/MS analysis of sulfated flavor compounds in plants. (monograph)
- C.H. Decker, J. Visser, P. Schreier.
(2000). ß-Glucosidases from five Aspergilli species: Study of their physico-chemical and biocatalytic properties. (monograph)
- C.H. Decker, J. Visser, P. Schreier.
(2001). ß-Glucosidase multiplicity from Aspergillus tubingensis CBS 643.92: purification and characterization of four ß-glucosidases and their differentiation with respect to substrate specificity, glucose inhibition and acid tolerance. (monograph)
Links:
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