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单词 Reducing end
释义

Reducing end

中文百科

还原糖 Reducing sugar

(重定向自Reducing end)

还原糖是在碱性溶液中能生成醛基和羰基的糖。还原糖可被适当的氧化剂氧化成醛糖酸、糖二酸等。 还原糖包括如葡萄糖、果糖、甘油醛等的所有单糖,以及乳糖、麦芽糖等二糖,和寡糖。 蔗糖和海藻糖在溶液中不生成醛基和酮基,故不属于还原糖。

英语百科

Reducing sugar 还原糖

(重定向自Reducing end)
Reducing form of glucose (the aldehyde group is on the far right)
Equilibrium between cyclic and open-chain form in one ring of maltose
Offenkettige Form der Glucose mit Aldehydgruppe (oben)

A reducing sugar is any sugar that is capable of acting as a reducing agent because it has a free aldehyde group or a free ketone group. All monosaccharides are reducing sugars, along with some disaccharides, oligosaccharides, and polysaccharides. The monosaccharides can be divided into two groups: the aldoses, which have an aldehyde group, and the ketoses, which have a ketone group. Ketoses must first tautomerize to aldoses before they can act as reducing sugars. The common dietary monosaccharides galactose, glucose and fructose are all reducing sugars.

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更新时间:2025/6/22 14:33:31