Q. The two enzymes present in yeast that an responsible for the formation of ethyl alcohol from molasses in the fermentatiol process are:
EAMCETEAMCET 1999
Solution:
Diastase enzyme is present in barley and it converts starch into maltose. The reactions are: $ \underset{\text{Sucrose}}{\mathop{{{C}_{6}}{{H}_{22}}{{O}_{11}}}}\,+{{H}_{2}}O\xrightarrow[(Yeast)]{\text{Invertasse}}\underset{\text{Fructose}}{\mathop{{{C}_{6}}{{H}_{12}}{{O}_{6}}}}\, $ $ \underset{\text{Fructose}}{\mathop{+{{C}_{6}}{{H}_{12}}{{O}_{6}}}}\, $ $ \underset{\begin{smallmatrix} \text{Glucoe}\, \\ \text{Fructose} \end{smallmatrix}}{\mathop{{{C}_{6}}{{H}_{12}}{{O}_{6}}}}\,\xrightarrow[(Yeast)]{Zymase}2{{C}_{2}}{{H}_{5}}OH+2C{{O}_{2}} $ So, to convert sucrose into $ {{\text{C}}_{\text{2}}}{{\text{H}}_{\text{5}}}\text{OH}\text{.} $ invertase and zymase enzymes are required which are present in yeast.
