Browning reactions of Heyns rearrangement products
Autor: | J. Davídek, J. Pokorný, L. Pilková |
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Rok vydání: | 1990 |
Předmět: | |
Zdroj: | Food / Nahrung. 34:759-764 |
ISSN: | 1521-3803 0027-769X |
DOI: | 10.1002/food.19900340821 |
Popis: | The browning rate of Heyns rearrangement products at 110°C under free access of oxygen is slower that that of Amadori rearrangement products. The maximum browning rate was observed at pH = 8.0. The browning was accelerated by Fe(III) and Cu(II) ions. The presence of Fe(II) ions, propyl gallate, and rutin caused lag periods but had no pronounced effect during the subsequent browning. Hydrogen peroxide bleached the melanoidin pigments but did not destroy the browning precursors. Sulphites inhibited the browning reaction. Fluorescence spectra differed from those of the respective Amadori products. |
Databáze: | OpenAIRE |
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