Aspergillus niger

Aspergillus niger is a common fungus found in soil and decaying organic matter. It typically appears as black mold and can be found in various environments, including homes and food products. While it is usually harmless, some people may have allergic reactions or respiratory issues when exposed to it. A. niger is also known for its role in biotechnology, as it is used to produce enzymes and citric acid, which are important in food and beverage industries. However, in large quantities, it can spoil food and produce harmful toxins.