| 摘要 |
The invention relates to the purely enzymatic production of monosaccharides, such as for example, tagatose, fuculose and xylulose, which only rarely occur in nature and which may be chemically synthesised only by means of complicated and costly methodology. It has been found that said monosaccharides can be enzymatically produced with good purity, whereby a polyol corresponding to the desired monosaccharide, or a plant-, vegetable-, or fruit-extract which contains a polyol corresponding to the desired monosaccharide is incubated with polyol-dehydrogenase from extremophilic algae and NAD and the monosaccharide produced is isolated. The above enzymatic production is possible by the use of polyol dehydrogenase from extremophilic red algae, in particular, the thermo- and acido-philic red algae <i>Galdieria sulphuraria</i>. |
