Sugar alcohol (alditol) An alcohol derived from a monosaccharide by reduction of its carbonyl group (CO) so that each carbon atom of the sugar has an alcohol group (OH).

单(CO)还原得到一个醇．继而分子每个碳原子都有一个羟(OH)。

At the same time, some other oxycompound groups, such as carbonyl group, aldehyde group and ketone group, appear or increase with temperature rising.

与此同时，醛、酮、酯类、芳香酮、醛类类含氧团或者从无到有，或者官能团数量不断增加。