作者:Elaine Yinan Li、Milton S. Feather
DOI:10.1016/0008-6215(94)84225-6
日期:1994.3
L-Threose, a comparatively unstable aldose, is produced from L-ascorbic acid in the presence of oxygen and participates vigorously in Maillard reactions, even at comparatively mild conditions. In the present study, the degradation of L-threose at pH 7.0 alone, in the presence of N-alpha-acetyl-L-lysine, and at pH 2.0 alone at 37 degrees C was investigated by identification of some of the products produced
L-苏糖,一种相对不稳定的醛糖,是在氧气存在下由L-抗坏血酸产生的,即使在相对温和的条件下,也能强烈参与美拉德反应。在本研究中,通过鉴定一些在乙醇中产生的产物,研究了仅在pH 7.0时,在N-α-乙酰基-L-赖氨酸存在下,以及仅pH 2.0时在37℃下L-苏糖的降解情况。通过GLC和GLC-MS进行反应。在鉴定出的化合物中,有3-脱氧-四-2-戊糖(1),预测的碱重排产物,其衍生自1(2,4-二羟基丁酸酯,4-碳间糖酸)以及甘油醛。同位素示踪剂研究清楚地表明,甘油醛是由起始L-苏糖分子中C-1的丢失而产生的。