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Determination of the rates of formation and hydrolysis of the Schiff bases formed by pyridoxal and poly-l-lysine

✍ Scribed by M.Angeles García del Vado; F.Rodríguez Cardona; Gerardo Echevarría; M.Carolina Martínez González; José G.Santos Blanco; Francisco García Blanco

Publisher
Elsevier Science
Year
1994
Weight
573 KB
Volume
87
Category
Article
ISSN
0304-5102

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📜 SIMILAR VOLUMES

Schiff bases of pyridoxal and polyallyla
Schiff bases of pyridoxal and polyallylamine. The formation rate determining step
✍ M. Angeles García Del Vado; Gerardo R. Echevarría Gorostidi; Andrea Basagoitía; 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 146 KB 👁 2 views

The apparent rate constants of formation and hydrolysis of the Schiff bases formed between pyridoxal and polyallylamine has been fitted to a kinetic scheme that involve the different protonated species in the reaction medium and the individual rate constants of formation (k and hydrolysis (k ). The

Determination of the rate of formation o
Determination of the rate of formation of the schiff bases of pyridoxal 5′-phosphate with polyallylamine
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The formation constants of the Schiff bases of pyridoxal %-phosphate with polyallylamine were determined over the pH range of the acetic-acetate buffer (3.9-5.5) a t an ionic strength of 0.1 M and a temperature of 25°C. The results were consistent with the rapid formation of an ionized carbinolamine

On the Stability of the Schiff Bases of
On the Stability of the Schiff Bases of Pyridoxal 5′-Phosphate with Polypeptides Containing L-Lysine
✍ M. Angeles García del Vado; Gerardo R. Echevarria; Francisco García Blanco; José 📂 Article 📅 1991 🏛 John Wiley and Sons 🌐 German ⚖ 506 KB

We determined the apparent equilibrium constant of formation, KpH, of the Schijf bases of pyridoxal 5'-phosphate (PLP) and poly-and copolymers containing L-lysine, as a function of pH at 25" and a constant ionic strength of 0 . 1 ~. The KPH values obtained at acidic and neutral pH were larger that t

Influence of the side chain on the stabi
Influence of the side chain on the stability of Schiff-bases formed between pyridoxal 5′-phosphate and amino acids
✍ M. A. Vazquez; F. Muñoz; J. Donoso; F. García Blanco 📂 Article 📅 1990 🏛 John Wiley and Sons 🌐 English ⚖ 527 KB

## Abstract The stability of some Schiff‐bases formed between PLP and different amino acids has been investigated in a wide range of pH. The kinetic constants of formation of these compounds and their hydrolysis rate constants have been determined. Results show that the α‐position of the carboxyl g