Aspergillus niger- An Overview


Aspergillus niger is a common fungus that belongs to the genus Aspergillus, which consists of hundreds of species of molds that are widely distributed in nature. Aspergillus niger is characterized by its black spores that form on decaying plant matter, soil, food, and indoor environments. It is a filamentous, aerobic, and saprobic fungus that can grow on a variety of substrates and under different environmental conditions.

Aspergillus niger is an important microorganism for biotechnology and industrial applications. It is known for its ability to produce citric acid, which is used as a preservative and flavoring agent in soft drinks and other products. It can also produce other organic acids, enzymes, bioactive compounds, and biofuels from various biomass sources. Aspergillus niger is generally regarded as safe by the US Food and Drug Administration for use in food production.

However, Aspergillus niger can also cause some diseases in plants and animals. It can cause black mold in fruits and vegetables like grapes, apricots, onions, and peanuts, which can reduce their quality and shelf life. It can also cause opportunistic infections in humans and animals with compromised immune systems or damaged respiratory tracts. The most common infection caused by Aspergillus niger is otomycosis, which is a fungal ear infection that can cause pain, itching, and hearing loss.

In this article, we will provide an overview of Aspergillus niger, covering its history, habitat, morphology, cultural characteristics, life cycle, pathogenesis, laboratory diagnosis, treatment, prevention and control, and industrial uses. We hope that this article will help you to learn more about this fascinating fungus and its role in nature and society.