Write notes on fructose

Explanation

Fructose :
`to` Fructose is an important ketohexose
`to` It is formed by the hydrolysis of sucrose.
`underset("sucrose")(C_12H_22O_11) + H_2O overset(H^+)(to) underset("glucose")(C_6H_12O_6) + underset("fructose")(C_6H_12O_6)`
`to` It has the ketonic group C-2 and six carbons in straight chain as in the glucose
`to` It has furanose ring structure.
Open chain structure

`alpha` - D (-) - fructofuranose structure
`beta` - D (-) - fructofuranose structure
`to` Haworth structures :