Before revision: They are usually linked to lipids or amino acids glycosic linkage with oxygen or nitrogen to form glygolipids and glycoproteins, though some, like the raffinose series , do not.
After revision: and the fructooligosaccharidesThey are usually linked to lipids or amino acids glycosic linkage with oxygen or nitrogen to form glygolipids and glycoproteins, though some, like the raffinose series , do not.