Branching Ivy (English Ivy, Glacier Ivy, Needlepoint Ivy, Sweetheart Ivy, California Ivy) | Scientific Names: Hedera helix | Family: Araliaceae. Bread and Butter Plant (Indian Borage, Spanish Thyme, Coleus, Maratha, Militini, East Indian Thyme) | Scientific Names: Coleus ampoinicus | Family: Labiatae.
The natural substrate for the enzyme cellobiase is cellobiose. This is a disaccharide composed of two beta glucose molecules. However, when scientists study enzyme function, it is best if there is an easy way to detect either the amount of substrate that is used up or the amount of product that is formed.
Hydrogenation of this oxidation product on a Pd/C catalyst resulted in only D-mannitol, D-glucito1 and L-iditol. The only ketofructose that can give exclu-sively these products is D-threo-hexo-2,5-diulose (see Scheme 1).herefore, it can be concluded that, besides 2-ke-togluconic acid, D-threo-hexo-2,5-diulose, or '5-keto-fructose', is formed during the oxidation of fructose with molecular oxygen over Pt/C catalysts. The latter compound is somewhat unexpected, since L-sorbose is oxidized first at C-1 and subsequently at C-6 [ 16].