Formation of radicals in irradiated maltose ? the role of hydrogen bonding with water
Formation of radicals in irradiated maltose ? the role of hydrogen bonding with water
复制标题
辐照麦芽糖中自由基的形成？
DOI：
10.1080/10715762.2022.2071267
复制
发表时间：
2022
影响因子：
3.3
通讯作者：
Nakagawa Seiko
中科院分区：
文献类型：
--
作者：
竹田 玲奈;棚橋 優花;伏屋 里茄子;中村 浩平;Nakagawa Seiko
获得了辐照麦芽糖的 EPR 光谱，并与蔗糖和葡萄糖的 EPR 光谱进行了比较。在麦芽糖硬石膏中，与蔗糖相同，主要自由基是由C1碳上的糖苷键与C2碳上的羰基断裂而产生的。相反，在一水合麦芽糖中也观察到涉及与水分子形成氢键的羰基阴离子自由基。羰基阴离子自由基的构象发生变化并变得稳定。
The EPR spectra of irradiated maltose were obtained and compared to those of sucrose and glucose. In maltose anhydrite, the main radicals were produced from the cleavage of the glycoside bond at the C1 carbon with a carbonyl at the C2 carbon the same as those in sucrose. On the contrary, a carbonyl anion radical involving the proton hydrogen bonding to a water molecule was also observed in maltose monohydrate. The conformation of the carbonyl anion radical changed and became stable.