Fungal fermentations are considered to be the safest one and least prone to contaminations. However, they also suffer from contamination problems. The most frequent are bacterial and fungal contaminations.
Bacterial contamination
Due to relatively long development cycle of fungi, even single bacterial cell can relatively easy multiply to high numbers during fungal fermentation. This may result in reduction of product or biomass yield. One of the most common contaminants are lactic acid bacteria.
Fungal contamination
Fungal cultures can be contaminated also by other fungi. As this type of contamination may be relatively hard to detect, good measures of precaution should be undertaken to prevent it.
