## Summavy. The authors describe a specific method for the preparation of N,-(1-deoxy-D-fructosy1)-L-lysine, h',-(1-deoxy-o-fructosy1)-L-lysine, their formyl derivatives, and N,-formyl-N,-(l-deoxy-D-lactulosyl)-L-lysinc, as well as N,,P\T,-di-(l-deoxp-D-fructosyl)-L-lysine. After purification by c
Le blocage de la lysine par la réaction de Maillard. II. Propriétés chimiques des dérivés N-(désoxy-1-D-fructosyl-1) et N-(désoxy-1-D-lactulosyl-1) de la lysine
✍ Scribed by P. A. Finot; J. Mauron
- Publisher
- John Wiley and Sons
- Year
- 1972
- Tongue
- German
- Weight
- 813 KB
- Volume
- 55
- Category
- Article
- ISSN
- 0018-019X
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
Lysine is often inactivated by ‘Maillard‐type’ reactions in food proteins; the values obtained for it by different methods cannot be compared because the chemical behaviour of inactivated lysine is unknown. In this paper, the behaviour of an important form of inactivated lysine, namely its 1‐deoxyketosyl derivatives, during acid hydrolysis as well as on the different assays for available lysine (F‐DNB, TNBS, pipsylchloride and guanidination) is studied. The relative proportions of regenerated lysine and of formed furosine and pyridosine are established as a function of the conditions of hydrolysis. The validity of the methods used to estimate available lysine from its 1‐deoxyketosyl derivatives is discussed.
📜 SIMILAR VOLUMES
## Abstract On indique deux chemins nouveaux pour une préparation plus rentable de la méthyl‐3‐nitro‐2‐fluorénone. On prouve que le dérivé trinitré obtenu par nitration de la méthyl‐3‐fluorénone est la méthyl‐3‐trinitro‐2,4,7‐fluorénone. On décrit la synthèse, par des méthodes classiques, des produ
The frequencies of the 'L, transitions of polycyclic aromatic aldehydes are related linearly to the energy gap between the highest bonding and the lowest anti-bonding orbitals in these molecules calculated by an iterative Huckel-L. C. A.0.-method. Solutions of the same derivatives and tetracyanoethy
## Abstract On décrit la synthèse de la diméthyl‐1,3‐fluorénone et de son produit de réduction, le diméthyl‐1,3‐fluorène. L'oxime de la diméthyl‐1,3‐fluorénone fournit par transposition de __Beckmann__ une diméthyl‐phénanthridone dont la constitution n'a pas pu être établie. On décrit la synthèse d