Periodate oxidation of chitosans with different chemical compositions (Record no. 55667)

MARC details
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fixed length control field 01820nam a2200241Ia 4500
003 - CONTROL NUMBER IDENTIFIER
control field MX-MdCICY
005 - DATE AND TIME OF LATEST TRANSACTION
control field 20250626083335.0
040 ## - CATALOGING SOURCE
Transcribing agency CICY
090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN)
Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) B-21599
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
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245 10 - TITLE STATEMENT
Title Periodate oxidation of chitosans with different chemical compositions
490 0# - SERIES STATEMENT
Series statement Carbohydrate Research, 340(4), p.679-684, 2005
500 ## - GENERAL NOTE
General note Artículo
520 3# - SUMMARY, ETC.
Summary, etc. Periodate oxidation of chitosans with different chemical compositions were investigated by determining the consumption of periodate consumed, and the amount of ammonia and formaldehyde liberated during the reaction. Oxidised chitosans were further characterised by size-exclusion chromatography with online multi-angle light scattering (SEC-MALLS) to obtain the molecular weight distributions, and by elemental analysis to obtain the N/C ratio. Chitosans became only partially oxidised by periodate, reaching degrees of oxidation around 0.5, when oxidising with excess periodate. Overconsumption of periodate is attributed to the extensive depolymerisation, which occurs concomitantly with the oxidation, thereby exposing novel reducing and non-reducing ends which consume additional periodate. Both the rate and extent of overoxidation, and the rate of depolymerisation decreased with increasing FA. A chitosan-specific degradation mechanism is probably involved in the depolymerisation in addition to the general free-radical-mediated degradation.
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element SEC-MALLS
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element FREE RADICALS
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element DEPOLYMERISATION
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element DIALDEHYDE
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Vold, I. M.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Christensen, B. E.
856 40 - ELECTRONIC LOCATION AND ACCESS
Uniform Resource Identifier <a href="https://drive.google.com/file/d/1bYnuZupvvPNequyvQiPSXFOvZjZIPWmp/view?usp=drive_link">https://drive.google.com/file/d/1bYnuZupvvPNequyvQiPSXFOvZjZIPWmp/view?usp=drive_link</a>
Public note Para ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Source of classification or shelving scheme Clasificación local
Koha item type Documentos solicitados
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  Clasificación local     Ref1 CICY CICY Documento préstamo interbibliotecario 26.06.2025   B-21599 26.06.2025 26.06.2025 Documentos solicitados