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汉语拼音：rǔ táng

有机化合物。由葡萄糖与半乳糖结合而成。白色晶体或粉末，溶于水，不溶于酒精。味稍甜。存在于哺乳动物的乳汁中。用于制造婴儿食品、糖果、人造奶油等。

1. 食品名。

   宋 孔平仲 《孔氏谈苑·收冰法》：“ 川 中乳糖狮子，冬至前造者，色白不坏；冬至后造者，易败多蛀。” 明 李时珍 《本草纲目·果五·石蜜》：“以石蜜和牛乳、酥酪作成饼块者为乳糖。”

2. 哺乳动物乳汁中的双糖，由葡萄糖和半乳糖结合而成，味稍甜。工业上从乳清提取而得。用于制造婴儿食品、糖果、人造奶油等。医药上用作矫味剂。

• Lactose is the main carbohydrate occurring in milk.

  乳糖是乳的主要碳水化合物.

• Lactose gives glucose and galactose.

  乳糖产生葡萄糖和半乳糖.

• The carbohydrate portion is made of gala ctose, glucosamine, fucose and sialic acid.

  碳水化合物部分由半乳糖,葡糖胺, 岩藻糖和唾液酸组成.

• An enzyme that catalyzes the hydrolysis of a galactoside.

  半乳糖酵催化半乳糖水解的一种酶.

• A similar, less severe, metabolic disorder is congenital lactase deficiency.

  类似的, 病症略轻为一点的代谢紊乱疾病是乳糖分解酶素缺乏症.

• Objective To prepare lactose and starch co - processed compound for direct compression.

  目的制备乳糖-淀粉复合辅料,用于直接压片技术.

• Objective : To establish a method for determination of the lactobionic acid.

  目的: 测定乳糖酸红霉素中游离的乳糖酸的量.

• They are principally composed of a galactose derivative, galacturonic acid.

  主要由半乳糖复合物和乳酸组成.

• Glucose, mannose , xylose and galactose are included in the saccharide.

  葡萄糖 、 甘露糖、木糖和半乳糖都属于糖类.

• Objective To a determination method for Clarithromycin Lactobionate Capsules by TLC.

  目的采用薄层色谱法鉴别乳糖酸克拉霉素胶囊的有效成分.

• Saccharide: Glucose, mannose , xylose and galactose and so on are included.

  糖类: 包括葡萄糖 、 甘露糖、木糖、半乳糖等.

• The product is a preparation for improving lactose intolerance.

  本品是一种改善乳糖不耐症的制剂.

• Pectins are composed of a galactose a glucose derivative.

  果胶是由半乳糖变异体和葡萄糖变异体角素构成.

• It is fermented by lactic acid bacteria to produce lactic acid.

  乳糖可以被乳酸菌发本季生成乳酸.

• The invention discloses a lactase powder and the preparation method.

  乳糖酶散剂及其制备方法.