Question

Name the fungus which produces Citric acid
1. Aspergillus niger
2. Aspergillus prolifernas
3. Aspergillus fumigatus
4. Aspergillus flavus

Answer 1

Correct Answer - Option 1 : Aspergillus niger

Explanation:

• Aspergillus niger is one of the species of the genus Aspergillus.
• It is a fungus that belongs to the class Ascomycetes or the sac fungi.
• It is also known by the name ''Weed of Laboratory"
• Aspergillus niger produces one of the most important organic acids, Citric acid by submerged microbial fermentation.
• Citric acid produced by the fungus is extensively used in the food and pharmaceutical industries

 

• Aspergillus prolifernas: It produces an antibiotic called ''Proliferin"
• Aspergillus fumigatus: It is a cause of different cattle and human diseases. These diseases are called ''Aspergillosis''
• Aspergillus flavus: It secretes a toxic substance named ''Aflatoxins''. Aflatoxins are carcinogenic and cause cancer