mutarotation


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mu·ta·ro·ta·tion

(myū'tă-rō-tā'shŭn),
The process of changing specific rotation at a given wavelength; for example, a solution of α-d-glucose recrystallized from its solution in acetic acid and freshly dissolved in water gives a rotation of [α] 20D = +112.2°, but when recrystallized from a boiling aqueous solution (as the β-form) it shows an initial rotation of [α] 20D = +18.7°; either solution, on standing, slowly changes its specific rotation to a value of [α] 20D = +52.7°, indicating a mixture of the two anomeric forms of d-glucose.

mutarotation

/mu·ta·ro·ta·tion/ (-ro-ta´shun) a change in optical activity of a freshly prepared solution of a pure compound, occurring because of the formation of diastereoisomers having different optical activity.
References in periodicals archive ?
The sensor geometry, diffusion distances through the hydrogel pad, glucose oxidase enzyme kinetics, glucose mutarotation kinetics, and electron transfer kinetics on the electrode all affect the dynamics of the measurement cycle.