<P> Disaccharides are formed from two monosaccharides and can be classified as either reducing or nonreducing . Nonreducing disaccharides like sucrose and trehalose have glycosidic bonds between their anomeric carbons and thus can not convert to an open - chain form with an aldehyde group ; they are stuck in the cyclic form . Reducing disaccharides like lactose and maltose have only one of their two anomeric carbons involved in the glycosidic bond , meaning that they can convert to an open - chain form with an aldehyde group . </P>
<P> Disaccharides are formed from two monosaccharides and can be classified as either reducing or nonreducing . Nonreducing disaccharides like sucrose and trehalose have glycosidic bonds between their anomeric carbons and thus can not convert to an open - chain form with an aldehyde group ; they are stuck in the cyclic form . Reducing disaccharides like lactose and maltose have only one of their two anomeric carbons involved in the glycosidic bond , meaning that they can convert to an open - chain form with an aldehyde group . </P>
why all monosaccharides are reducing sugar but not all disaccharides
why all monosaccharides are reducing sugar but not all disaccharides
Nonreducing disaccharides like sucrose and trehalose have glycosidic bonds between their anomeric carbons and thus can not convert to an open - chain form with an aldehyde group ; they are stuck in the cyclic form
Nonreducing disaccharides like sucrose and trehalose have glycosidic bonds between their anomeric carbons and thus can not convert to an open - chain form with an aldehyde group ; they are stuck in the cyclic form