pentose

/pen-tohs/US // ˈpɛn toʊs //UK // (ˈpɛntəʊs) //

戊糖,戊糖类,五糖,戊糖类物质

Definitions

n.名词 noun

1
Chemistry.
- : a monosaccharide containing five atoms of carbon, as xylose, C5H10O5, or produced from pentosans by hydrolysis.

The time increase was less pronounced in the presence of the three pentose sugars used.
It is usual to regard furfural as invariably produced from a pentose residue.
It is composed of one molecule of glucose united to two molecules of rhamnose (methyl pentose, C6H12O5).
But most of the natural gums yield a mixture of galactose, some pentose, and some complex organic acid.
They bear the same relation to the pentose sugars as do the dextrosans to glucose, etc.