MadSci Network: Biochemistry

Re: what is the chemical composition of coffee(regular),

Date: Mon Jul 31 11:16:22 2000
Posted By: Phyllis Stumbo, Staff, Nutrition, University of Iowa
Area of science: Biochemistry
ID: 963607351.Bc

You an access the "nutrient" composition of coffee from the National 
Nutrient Data Lab's web site at  This 
will give you 
the composition in terms of nutrients, but natural foods have many, many 
components that will not be listed as nutrients.  Evaporation will not 
change most chemical components but could result in the loss of volatile 
components.  Mold growth in the liquid coffee and oxidation of components 
in the dry powder could result in chemical differences between wet and dry 
coffee.  You may argue that changes due to evaporation are negligible, or 
that loss of volatile components makes the dry product 
chemically different.  Aren't arguments fun!

Phyllis Stumbo
University of Iowa
Clinical Research Center

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