FRUCTOSE Flashcards
What type of sugar is fructose?
Fructose is a ketohexose.
How is fructose obtained naturally?
Fructose is found in fruits, honey, and vegetables.
What is the molecular formula of fructose?
C₆H₁₂O₆
What is the functional group present in fructose?
Ketonic functional group at carbon number 2.
sucrose on Hydrolyisis
Fructose + Glucose
How is fructose obtained from sucrose?
By hydrolysis of sucrose along with glucose.
What is the stereochemical notation for fructose?
D-(–)-fructose (D-series and laevorotatory).
What is the role of fructose in food products?
It is used as a sweetener in its pure form.
How does the carbon chain of fructose compare to glucose?
It has six carbons in a straight chain, similar to glucose.
How are the cyclic forms of fructose formed?
By the addition of —OH at C5 to the ketone group.
What type of ring does fructose form in its cyclic structure?
A five-membered ring called furanose.
Why is the cyclic form of fructose called furanose?
It is named by analogy to furan, a five-membered cyclic compound with one oxygen and four carbon atoms.
What are the two cyclic forms of fructose called?
The two anomers of fructose.
How are the cyclic structures of fructose represented?
By Haworth structures.
