Author/Authors :
Gullapalli، نويسنده , , Pushpakiran and Yoshihara، نويسنده , , Akihide and Morimoto، نويسنده , , Kenji and Rao، نويسنده , , Devendar and Akimitsu، نويسنده , , Kazuya and Jenkinson، نويسنده , , Sarah F. and Fleet، نويسنده , , George W.J. and Izumori، نويسنده , , Ken، نويسنده ,
Abstract :
The efficient isomerization of l-rhamnose [the only cheaply available deoxy hexose] to 1-deoxy-l-psicose, 1-deoxy-d-psicose, 1-deoxy-l-fructose, 1-deoxy-d-fructose, 1-deoxy-l-tagatose, 6-deoxy-l-psicose, 6-deoxy-d-psicose, 6-deoxy-l-fructose, 6-deoxy-d-fructose, and 6-deoxy-l-tagatose is described. The conversion of rhamnose to ten of the sixteen 1- and 6-deoxyketohexoses is accomplished in water in three steps. The range of substrates for d-tagatose-3-epimerase (DTE) is extended to 1- and 6-deoxyketoses. An authentic sample of 6-deoxy-d-psicose is prepared from d-psicose.
