“变旋”的英语？

研究N - 乙酰氨基葡萄糖在水溶液中的变旋行为.To mutarotation of N - acetylglucosamine in water was studied specific rotation.为存在变旋行为的糖及糖苷类化合物的研究提供了准确可行的方法.The study has provided available and reliable method for the mutarotation of water....