Question

Describe the method of production of ethanol by fermentation reaction.

Answer 1

Hint: we know that ethanol fermentation process is also known as the alcohol fermentation process. In the process of fermentation oxygen gas is not required. Ethanol which is produced by the fermentation process is the wine, which is produced with the help of yeast used for the fermentation process.

Complete step by step answer:
We know that the fermentation process is a biological process in which sugars such as glucose , fructose and sucrose are converted into cellular energy . Hence ethanol and carbon dioxide are produced as by products of the reaction. As ethanol is produced as by products, the fermentation process is also known as the alcohol fermentation process. The overall reaction can be written as : $ \Rightarrow {C_6}{H_{12}}{O_6} \to 2{C_2}{H_5}OH + 2C{O_2}$ . The sugar molecule is converted to ethanol that is wine with the help of yeast . The enzymes of the yeast help to convert the sugar into ethanol in the absence of oxygen. The metabolism process of glucose is known as glycolysis. The output of the glycolysis process is known as pyruvate. $NADH$molecules are responsible for giving energy to the pyruvate to convert it into alcohol and carbon dioxide.

Additional information:
$NADH$is a very important molecule. It is used in medicines to improve mental clarity, concentration and memory .It is used to produce energy and because of this reason it is used to improve the performance of athletes in sports. Fermentation is a very important reaction in biochemistry. This process is also defined as the process of extracting energy from carbohydrates in the absence of oxygen.

Note:
Always remember that fermentation is the process in which sugars are converted into ethanol and carbon dioxide in the absence of oxygen gas. In the process of fermentation, $NADH$is responsible for giving energy to the pyruvates that get converted into ethanol and carbon dioxide. Ethanol and alcohol are the same things.