Advertisements
Advertisements
प्रश्न
Name the enzymes and write the reactions involved in the preparation of ethanol from sucrose by fermentation.
Advertisements
उत्तर
Ethanol, C2H5OH, is obtained commercially by fermentation, the oldest method is from sugars. The sugar in molasses, sugarcane or fruits such as grapes is converted to glucose and fructose, (both of which have the formula C6H12O6), in the presence of an enzyme, invertase. Glucose and fructose undergo fermentation in the presence of another enzyme, zymase, which is found in yeast.
\[\ce{\underset{Sugar}{C12H22O11} + H2O ->[Invertase] \underset{Glucose}{C6H12O6} + \underset{Fructose}{C6H12O6}}\]
\[\ce{\underset{Glucose/Fructose}{C6H12O6} ->[Zymase] \underset{Ethanol}{2C2H5OH} + 2CO2}\]
APPEARS IN
संबंधित प्रश्न
Write resonance structures of aniline. What is the action of benzene diazonium chloride on ethanol?
How do you convert the following:
Ethanol to Propan-2-ol
Write the mechanism of the following reaction :
\[\ce{C2H5OH->[H2SO4][443K]CH2=CH2 + H2O}\]
Among the following the one which reacts most readily with ethanol is:
Methanol and ethanol are miscible in water due to ____________.
If ethanol dissolves in water, then which of the following would be observed:
Which of the following is correct?
Phenol is less acidic than ______.
Write the IUPAC name of the following compound.
\[\begin{array}{cc}
\phantom{.}\ce{CH3 - CH - CH - CH - CH - CH3}\phantom{}\\
\phantom{......}|\phantom{......}|\phantom{......}|\phantom{.....}|\phantom{........}\\
\phantom{...}\ce{CH3}\phantom{...}\ce{OH}\phantom{...}\ce{C2H5}\phantom{.}\ce{OH}\phantom{...}\end{array}\]
Suggest a reagent for conversion of ethanol to ethanal.
Suggest a reagent for conversion of ethanol to ethanoic acid.
Dipole moment of phenol is smaller than that of methanol. Why?
Tonics in general contain
Alcoholic fermentation is brought about by the action of
Write chemical reactions of following reagents on methoxyethane:
dilute H2SO4
How methanol is obtained from methanal.
Give IUPAC names of the following compounds:
\[\begin{array}{cc}
\ce{CH3 - CH - CH - CH - CH2-OH }\\
|\phantom{......}|\phantom{......}|\phantom{.......}\\
\ce{Cl}\phantom{....}\ce{CH3}\phantom{...}\ce{CH3}\phantom{.....}
\end{array}\]
3, 3-dimethyl-1-butene was subject to following reactions:
