MadSci Network: Biochemistry

Re: Why doesn't a solution of granulated sugar heated with Benedict's turn red?

Area: Biochemistry
Posted By: Lynn Bry, MadSci Admin
Date: Tue Sep 30 20:21:55 1997
Area of science: Biochemistry
ID: 875626937.Bc

Dear Susan,

A number of simple tests can be used to test for the presence of carbohydrates. Benedict's solution is used to test for the presence of reducing sugars such as glucose, fructose, maltose or galactose, while Lugol's Iodine tests for the presence of starch, a complex polysaccharide. Granulated sugar contains mostly sucrose, a disaccharide consisting of glucose connected to fructose. Benedict's solution does not react with sucrose because it is not a reducing sugar.

-L. Bry, MadSci Admin

Current Queue | Current Queue for Biochemistry | Biochemistry archives

Try the links in the MadSci Library for more information on Biochemistry.

MadSci Home | Information | Search | Random Knowledge Generator | MadSci Archives | Mad Library | MAD Labs | MAD FAQs | Ask a ? | Join Us! | Help Support MadSci

MadSci Network
© 1997, Washington University Medical School

Page generated by MODERATOR_1.2b: Tools for Ask-An-Expert websites.
© 1997 Enigma Engines for a Better Universe: We are forever combustible, ever compatible.