Aspergillus niger is a fungus and one of the most common species of the genus Aspergillus.
Bioactive molecules are those molecules that are functional in the living systems or can interact with their components.
Microbes are used for commercial and industrial production of certain chemicals ( bioactive molecules ) like organic acids, enzymes, cyclosporin A and statins.
Certain microbes can convert carbohydrates into organic acids. Aspergillus niger ( fungus ) is used to get Citric acid.
Final answer: Citric Acid is obtained fromAspergillus niger.