Guanosine diphosphate D-mannuronic acid and guanosine diphosphate L-guluronic acid were isolated from the marine brown alga, Fucus gardneri Silva. These uronic acid nucleotides, reported to occur for the first time in living cells, are considered to be the precursors for the biosynthesis of alginic acid which constitutes about 18% of this alga. A mixture of 3 moles of the two uronic acid nucleo...

Background: It has been confirmed that the daily consumption of seaweed such as Wakame (Undaria pinnatifida) and Kombu (Saccharina japonica) an inhibitory effect on rise in postprandial blood glucose levels. Similar effects can also be expected for Mekabu, which is sporophylls contains large quantities water-soluble dietary fiber. In this study, we examined preprandial intake Mekabu levels regu...