Editing Reducing sugar (section)

===Reducing end===
Disaccharides consist of two monosaccharides and may be either reducing or nonreducing. Even a reducing disaccharide will only have one reducing end, as disaccharides are held together by [[glycosidic bond]]s, which consist of at least one [[anomeric carbon]]. With one anomeric carbon unable to convert to the open-chain form, only the free anomeric carbon is available to reduce another compound, and it is called the ''reducing end'' of the disaccharide. 
A nonreducing disaccharide is that which has both anomeric carbons tied up in the glycosidic bond.<ref>{{cite book |last1=Nelson |first1=David L. |last2=Cox |first2=Michael M. |date=2008 |title=Lehnniger: Principles of Biochemistry |publisher=W.H. Freeman and Company |edition=Fifth |page=[https://archive.org/details/lehningerprincip00lehn_1/page/243 243] |isbn=978-0716771081 |url-access=registration |url=https://archive.org/details/lehningerprincip00lehn_1/page/243 }}</ref>

Similarly, most polysaccharides have only one reducing end.