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Titolo:
Kinetic aspects of the Maillard reaction: a critical review
Autore:
van Boekel, MAJS;
Indirizzi:
Univ Wageningen & Res Ctr, Dept Agrotechnol & Food Sci, Prod Design & QualManagement Grp, NL-6700 EV Wageningen, Netherlands Univ Wageningen & Res Ctr Wageningen Netherlands NL-6700 EV Netherlands
Titolo Testata:
NAHRUNG-FOOD
fascicolo: 3, volume: 45, anno: 2001,
pagine: 150 - 159
SICI:
0027-769X(200106)45:3<150:KAOTMR>2.0.ZU;2-2
Fonte:
ISI
Lingua:
ENG
Soggetto:
MODEL SYSTEM; CHLOROPHYLL DEGRADATION; HETEROCYCLIC AMINES; THERMAL-DEGRADATION; STRECKER-ALDEHYDES; AMADORI COMPOUNDS; GLASS-TRANSITION; HEAT-TREATMENT; UHT-TREATMENT; FOOD-SCIENCE;
Tipo documento:
Review
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
63
Recensione:
Indirizzi per estratti:
Indirizzo: van Boekel, MAJS Univ Wageningen & Res Ctr, Dept Agrotechnol & Food Sci, Prod Design & QualManagement Grp, POB 8129, NL-6700 EV Wageningen, Netherlands Univ Wageningen & Res Ctr POB 8129 Wageningen Netherlands NL-6700 EV
Citazione:
M.A.J.S. van Boekel, "Kinetic aspects of the Maillard reaction: a critical review", NAHRUNG, 45(3), 2001, pp. 150-159

Abstract

The literature concerning the kinetics of the Maillard reaction was critically discussed according to the initial, intermediate and advanced stages, as this is the way the Maillard reaction is traditionally analysed. For each stage, a division is made between simple kinetics and complex kinetics. Simple kinetics means that the general rate law is used and results are reported as zero-, first- or second-order reactions (sometimes a fractional order). It is emphasized that this approach for a complex reaction as the Maillard reaction only results in a mathematical fit procedure, not in mechanistic insight. The rare constants and activation energies derived are in factcomposed of several elementary rate constants. With complex kinetics, i.e.trying to establish the kinetics for individual reaction steps, more mechanistic information can be extracted. However, there are conflicting resultsin literature and the interpretation is not always correct, as is shown inseveral examples. A summary of activation energies reported for the various stages in the Maillard reaction reveals large discrepancies, probably reflecting strong effects of experimental conditions on results that are obtained. Careful control of experimental conditions and proper kinetic analysisof the various stages in the Maillard ct reaction should lead to more consistent results in the future.

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Documento generato il 05/04/20 alle ore 13:34:48