On the Influence of the Carbohydrate Moiety on Chromophore Formation during Food-RelatedMaillard Reactions of Pentoses, Hexoses, and Disaccharides
作者:Oliver Frank、Thomas Hofmann
DOI:10.1002/1522-2675(20001220)83:12<3246::aid-hlca3246>3.0.co;2-5
日期:2000.12.20
experiments. Studies on their formation revealed that 1a, b and 2a, b are formed upon condensation of pentose-derived 4-hydroxy-5-methyl- (3) and 5-methyl-4-(pyrrolidin-1-yl)furan-3(2H)-one (4), respectively, with 2-hydroxycyclopenta-2,4-dien-1-one (5) and L-proline (Scheme 1). Further condensation reaction of 1a, b with furan-2-carbaldehyde yielded the red (2Z)-2-(5Z)-5-[(2-furyl)methylidene]-4-oxo-3-(
碳水化合物部分对食品相关美拉德过程中 2-[4-oxo-3-(pyrrolidin-1-yl)cyclopent-2-en-1-ylidene]furan-3(2H)-one 发色团形成的影响已报道了戊糖、己糖和二糖的反应。在烘烤的木糖/L-脯氨酸混合物中检测到的橙色化合物 1a、b 和 2a、b 被鉴定为 (2E)/(2Z)-4-hydroxy-5-methyl-2-[4-oxo-3- (pyrrolidin-1-yl)cyclopent-2-ene-1-ylidene]furan-3(2H)-one 和 (2E)/(2Z)-5-methyl-2-[4-oxo-3-(pyrrolidin- 1-yl)cyclopent-2-en-1-ylidene]-4-(pyrrolidin-1-yl)furan-3(2H)-one,分别通过 1D-和 2D-NMR、LC/mass 和 UV/可见