Why is surcose a non reducing sugar?

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3 Answers

  • Anonymous
    1 decade ago
    Favorite Answer

    Nonreducing Sugar

    Sucrose is an unusual disaccharide in that it is a nonreducing sugar. This is because both of the hydrogen atoms removed in the dehydration reaction came from OH groups that were created during ring closure. Consequently, neither of the rings is able to open.

    Source(s): http://dl.clackamas.edu/ch106-07/sucrose.htm There are other places to find this, but this one was pretty east to read, and also has a few diagrams showing the dehydration reaction, etc.
  • 1 decade ago

    "What is notable about sucrose is that unlike most polysaccharides, the glycosidic bond is formed between the reducing ends of both glucose and fructose, and not between the reducing end of one and the nonreducing end of the other. The effect of this inhibits further bonding to other saccharide units. Since it contains no free anomeric carbon atom, it is classified as a nonreducing sugar."

  • 1 decade ago

    because it contains an acetal

    Source(s): school
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