raffinose

[raf-uh-nohs]
noun Biochemistry.
a colorless, crystalline trisaccharide, C 1 8 H 3 2 O 1 6 ⋅5H 2 O, with little or no sweetness, occurring in the sugar beet, cottonseed, etc., and breaking down to fructose, glucose, and galactose on hydrolysis.


Origin:
1875–80; < French raffin(er) to refine (see raffinate) + -ose2

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World English Dictionary
raffinose (ˈræfɪˌnəʊz, -ˌnəʊs)
 
n
biochem a trisaccharide of fructose, glucose, and galactose that occurs in sugar beet, cotton seed, certain cereals, etc. Formula: C18H32O16
 
[C19: from French raffiner to refine + -ose²]

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American Heritage
Science Dictionary
raffinose   (rāf'ə-nōs')  Pronunciation Key 
A white crystalline sugar obtained from cottonseed meal, sugar beets, and molasses. Raffinose is an oligosaccharide, consisting of three simple sugars (fructose, galactose, and glucose) linked together. Chemical formula: C18H32O16.
The American Heritage® Science Dictionary
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Example sentences for raffinose
Raffinose is a trisaccharide composed of galactose, fructose, and glucose.
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