mannose
/man-ohs/US // ˈmæn oʊs //UK // (ˈmænəʊs, -nəʊz) //
甘露糖,麦芽糖,曼糖,海洛因
Definitions
n.名词 noun
- 1
Chemistry.
- : a hexose, C6H12O6, obtained from the hydrolysis of the ivory nut and yielding mannitol upon reduction.
Examples
The process is reversible; mannose can be converted to mannonic acid, thence to gluconic acid, thence to glucose.
The hydrazones of the common sugars, with the exception of the one from mannose, are colorless compounds, easily soluble in water.
Mannan bears the same relation to mannose that starch does to glucose and inulin to fructose.
When hydrolyzed, they yield arabinose and a hexose; the latter is sometimes galactose and sometimes mannose.
Fresh samples of yeast ferment mannose more quickly than glucose, but by older samples the glucose is the more rapidly decomposed.
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