DETERMINATION OF THE RATES OF FORMATION AND HYDROLYSIS OF THE SCHIFF-BASES FORMED BY PYRIDOXAL AND POLY-L-LYSINE

dc.creatorDELVADO, MAG
dc.creatorCARDONA, FR
dc.creatorECHEVARRIA, G
dc.creatorGONZALEZ, MCM
dc.creatorBLANCO, JGS
dc.creatorBLANCO, FG
dc.date.accessioned2024-01-10T13:12:15Z
dc.date.available2024-01-10T13:12:15Z
dc.date.created2024-01-10T13:12:15Z
dc.date.issued1994
dc.identifier0304-5102
dc.identifierhttps://repositorio.uc.cl/handle/11534/78160
dc.identifierWOS:A1994MW49900021
dc.description.abstractThe rate constants of formation (k1ex) and hydrolysis (k2) of the Schiff bases of pyridoxal (PL) with poly-L-lysine were determined as a function of pH at a temperature of 25-degrees-C and an ionic strength I=0.1 M. The k1ex and k(pH) values obtained at every pH assayed were all smaller than those reported for the formation of Schiff bases between pyridoxal 5'-phosphate (PLP) and poly-L-lysine as a result of the occurrence of PL as a hemiacetal. The Schiff bases of PL with poly-L-lysine are more readily hydrolysed than those of PLP with the same polymer. The carbon-nitrogen double bond of the Schiff bases studied in this work lies in a hydrophobic environment similar to that provided by ethyl alcohol in terms of polarity.
dc.languageen
dc.publisherELSEVIER SCIENCE BV
dc.rightsregistro bibliográfico
dc.subjectHYDROLYSIS
dc.subjectPOLY-L-LYSINE
dc.subjectPYRIDOXAL
dc.subjectSCHIFF BASE
dc.subjectBAND-SHAPE ANALYSIS
dc.subjectNORMAL-HEXYLAMINE
dc.subjectN-HEXYLAMINE
dc.subjectTHERMODYNAMIC PARAMETERS
dc.subjectELECTRONIC-SPECTRA
dc.subjectNONAQUEOUS MEDIA
dc.subjectWATER-DIOXANE
dc.subject5'-PHOSPHATE
dc.subject5'-DEOXYPYRIDOXAL
dc.subjectPYRIDOXAL-5'-PHOSPHATE
dc.titleDETERMINATION OF THE RATES OF FORMATION AND HYDROLYSIS OF THE SCHIFF-BASES FORMED BY PYRIDOXAL AND POLY-L-LYSINE
dc.typeartículo


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