MadSci Network: Biochemistry

Subject: Why does beer give a positive Benedict's test result?

Date: Wed Sep 30 01:19:06 1998
Posted by Jeremy Herring
Grade level: undergrad
School: University Of Waterloo
City: Waterloo State/Province: Ontario
Country: Canada
Area of science: Biochemistry
ID: 907136346.Bc

In one of our first year biology lab we were testing for 
macromolecules such as sugars and proteins.  While using the 
Benedict's test we discovered that beer not only reacted with the 
Benedict's solution to yield a colour change, but it also led to an 
apparant precipitation of cuprous oxide.  I have asked around and I 
can't get a straight answer on why it reacted this way....HELP!

Re: Why does beer give a positive Benedict's test result?

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