Question

-------------------------------------- is used for production of citric acid in soft drink industries

Answer 1

Some special type of mold is used for the production of citric acid in soft drinks industries

Answer 2

Aspergillus niger is used for citric acid production in soft drink industries.  

Explanation:

The filamentous fungus Aspergillus is used as a waste management and biotransformation. In addition it is used as a production of citric acid and extracellular enzymes. In our daily products this can be found in the food labels.

Aspergillus is actually used to produce citric acid as well as gluconic acid. This acid helps to protect food product to decompose or break down inside the box package.