| Name | 2-amino-5-[(1-carboxy-2-phenylethyl)amino]-5-oxopentanoic acid |
|---|---|
| Synonyms |
L-g-Glutamyl-L-phenylalanine
H-GLU(PHE-OH)-OH γ-Glu-Phe |
| Description | γ-Glu-Phe is a γ-3 glutamyl dipeptide found in sourdough. |
|---|---|
| Related Catalog | |
| In Vitro | γ-Glu-Phe, γ-Glu-Met and γ-Glu-Val, are identified in sourdough by liquid chromatography-tandem mass spectrometry in MRM mode. γ-Glutamyl dipeptides are found in higher concentrations in sourdough fermented with L. reuteri when compared to the chemically acidified controls. Proteolysis is an important factor for generation of γ-glutamyl dipeptides. Sensory evaluation of bread reveals that sourdough bread with higher concentrations of γ-glutamyl dipeptides ranks higher with respect to the taste intensity when compared to regular bread and type I sourdough bread. Sourdough breads fermented with L. reuteri LTH5448 and L. reuteri 100-23 differ with respect to the intensity of the salty taste; this difference corresponds to a different concentration of γ-glutamyl dipeptides[1]. |
| References |
| Density | 1.332g/cm3 |
|---|---|
| Boiling Point | 622ºC at 760mmHg |
| Molecular Formula | C14H18N2O5 |
| Molecular Weight | 294.30300 |
| Flash Point | 330ºC |
| Exact Mass | 294.12200 |
| PSA | 129.72000 |
| LogP | 1.08180 |
| Index of Refraction | 1.582 |
| Storage condition | -20°C |
|
~%
7432-24-8 |
| Literature: Tomita, Kenji; Yano, Toshihiro; Kitagata, Tatsuichiro; Kumagai, Hidehiko; Tochikura, Tatsurokuro Agricultural and Biological Chemistry, 1989 , vol. 53, # 7 p. 1995 - 1996 |