Possible Formation of Dehydro-<scp>L</scp>-ascorbic Acid from 2,3-Diketo-<scp>L</scp>-gulonic Acid in an Aqueous Solution
作者:Noriko MIYAKE、Tadao KURATA
DOI:10.1271/bbb.62.1419
日期:1998.1
The reaction of 2,3-diketo-L-gulonic acid (DKG), which is one of the important intermediate products in the degradation of L-ascorbic acid (ASA) in both food and biological systems, in an aqueous solution was studied. The formation of a small amount of the γ-lactone, dehydro-L-ascorbic acid (DASA), from DKG was observed. This strongly suggests the chemical possibility of a reverse reaction in DASA
研究了食品和生物系统中L-抗坏血酸(ASA)降解中重要的中间产物之一2,3-二酮-L-古洛糖酸(DKG)在水溶液中的反应。观察到由DKG形成了少量的γ-内酯,脱氢L-抗坏血酸(DASA)。这强烈暗示了在DASA水解中发生逆反应的化学可能性,长期以来人们一直认为这种化学反应是不可逆的。