还原末端

1

唾液酸酶（sialidase/SD）是一种糖苷酶（glycosidase），功能是从糖蛋白和糖脂的非还原末端水解唾液酸（sialicacid）。

Sialidase is a kind of glycosidase , which can hydrolyzing sialic acid from non-deoxidized end glycogen and glycolipid .
2

因为它没有还原性末端，它是一个非还原性糖。

Since it has no reducing end , it is a nonreducing sugar .
3

p-葡萄糖苷酶（E.C3.2.1.21.）能够水解糖苷键，从糖苷或寡糖上释放非还原的末端葡萄糖残基。

β - glucosidases ( E.C3.2.1.21 ) are enzymes that hydrolyze the glycosidic bonds to release non-reducing terminal glucosyl residues from glycosides and oligosaccharides .
4

因此如前面单糖部分所述，它是还原性末端。会形成六元环形式的平衡。

Therefore , it is the reducing end and will be in equilibrium with alpha and beta six-membered ring forms , as described earlier for monosaccharides .