Complaint Case Studies Bread where mold was growing

When I bought it and stored it at room temperature for 2 days, black mold has grown. A week later, mold spread throughout the surface. The black soot and yellow mold settlements were found on the surface.

Bread with mold growing

Micrograph of mold

Electron micrograph of mold

• Culture media: Potato dextrosse agar
• Growth: Normal
• Form: Powder
• Color: Black

It was presumed to be a mold of the genus Aspergillus (A.niger).

　It is widely distributed all over the world. It is detected in various agricultural products as soil and storage bacteria, especially in various foods at room temperature, such as cereals, processed grains, beans, nuts, spices, etc., low-water processed foods, and foods with high sugar and salt. Containers and packaging, paper, industrial products, various daily necessities, cultural properties, house dust, especially in indoor environments, are said to be related to allergic diseases such as asthma. In addition, there is mycotoxin-producing bacteria.

Published on March 8, 2007