Results 241 to 250 of about 31,611 (299)
Some of the next articles are maybe not open access.
NON-ENZYMATIC BROWNING IN CAULIFLOWER
Canadian Journal of Plant Science, 1961In a study of local cauliflower discoloration it was found that added 1-ascorbic acid markedly increased the pink colour formed on heating. The pink colour formation is relatively slow, takes place regardless of the inherent ascorbic acid content, and appears to be due to a non-enzymatic browning reaction.
G. Strachan, I. L. Nonnecke
openaire +1 more source
Non‐Enzymatic Browning Reactions of Phospholipids
Lipid / Fett, 1990AbstractThe formation and properties of the fluorescent compounds originated in the browning reactions of phospholipids have been investigated. The compounds exhibited fluorescence with excitation maximum 345–350 nm and emission maximum at 420–430 nm, which were similar to those of lipofuscin and fluorescent substances derived from the reaction of ...
F. J. Hidalgo +5 more
openaire +1 more source
Non-enzymatic browning induced by chlorogenic acid quinone mediated catechin oxidation
Food Research International, 2022Non-enzymatic oxidation has become a significant issue in the juice industry, inducing browning, flavor deterioration, and nutrient degradation, where catechin oxidation plays a vital role. Here, a novel chlorogenic acid quinone-mediated catechin oxidation was compared with the autoxidation pathway, where the former reaction was significantly faster (0.
Xinyu, Liu +7 more
openaire +2 more sources
Non-enzymatic browning of oligogalacturonides in apple juice models
Zeitschrift f�r Lebensmittel-Untersuchung und -Forschung, 1988Apple juice models, consisting of galacturonides (reaction products of enzymatic pectin degradation), sugars, amino acids and organic acids, were subjected to heat treatment for 2 h in a boiling water bath and the decrease in the galacturonide concentration, the formation of the reaction products and the colour were established.
Voragen, A.G.J. +2 more
openaire +2 more sources
Polyphenol mediated non-enzymatic browning and its inhibition in apple juice
Food Chemistry, 2023Non-enzymatic browning is a severe problem in juice industry. Here, polyphenol mediated non-enzymatic browning and its inhibition in apple juice were investigated. Epicatechin (R = -0.83), catechin (CAT, R = -0.79), chlorogenic acid (CGA, R = 0.65) and caffeic acid (CAF, R = 0.65) were strongly correlated with browning. CAT and chlorogenic acid quinone
Zijing, Xu +8 more
openaire +2 more sources
Mechanisms non-enzymatic browning in orange juice during storage
Food Chemistry, 2019The role of Reactive Carbonyl Species (RCS) derived from the Maillard reaction and ascorbic acid degradation on brown color formation was investigated in orange juice during storage. Eight RCS were monitored in aseptic juice over an 8-week period under refrigerated (4 °C) and accelerated conditions (35 °C).
Laurianne, Paravisini, Devin G, Peterson
openaire +2 more sources
Journal of Animal Science, 1987
Non-enzymatic browning was tested as a means of suppressing degradation of soybean meal (SBM) by ruminal microbes in five trials with in vitro ammonia release as the response criterion. Treatments imposed on SBM included reducing sugar source (xylose, glucose, fructose and lactose), reducing sugar level (1, 3 and 5 mol/mol SBM-lysine), pH (6.5, 8.5 and
R M, Cleale +4 more
openaire +2 more sources
Non-enzymatic browning was tested as a means of suppressing degradation of soybean meal (SBM) by ruminal microbes in five trials with in vitro ammonia release as the response criterion. Treatments imposed on SBM included reducing sugar source (xylose, glucose, fructose and lactose), reducing sugar level (1, 3 and 5 mol/mol SBM-lysine), pH (6.5, 8.5 and
R M, Cleale +4 more
openaire +2 more sources
Non-enzymatic browning in peach puree during heating
Food Research International, 1999Non-enzymatic browning in peach puree (11 Brix) due to extended thermal treatment was investigated. Absorbance at 420 nm, colorimetric parameters (CIE L, a, b and E), content in sugars (fructose, glucose and sucrose) and hydroxymethylfurfural were used to estimate the extent of nonenzymatic browning during heating at high temperatures (80, 85, 90, 95 ...
S. Garza, A. Ibarz, J. Pagán, J. Giner
openaire +1 more source
Non-enzymatic browning of foods
1995To the uninitiated, the browning of foods could simply be dismissed as the degree of colour developed during the toasting of bread. Excess colour change coupled with development of burnt flavours might define the extent of interest in the subject by the consumer.
J. C. Hoskin, P. S. Dimick
openaire +1 more source
Some formaldehyde reaction products in non-enzymatic browning reactions
Zeitschrift für Lebensmittel-Untersuchung und -Forschung, 1989The volatiles isolated from the glycine-glyoxal model system were analysed and two compounds derived from formaldehyde (arising from the Strecker degradation of glycine) were identified. The structure of the two compounds, i.e., 2,4,6-trioxaheptane and 2,4,6,8-tetraoxanonane, was confirmed by the analysis of the reference compounds isolated from the ...
Jan Velíšek +4 more
openaire +1 more source