General information:
Specific molds as well as yeast are used for industrial purposes (e.g. cheese production). Harmful genera of molds exist as well and are able to produce toxins (mycotoxins). Almost all molds have an allergenic potential related to their spore form capabilities.
During growth on the nutrient medium of Compact Dry YMR colonies of yeasts and molds show different color reactions and therefore they are easily to differentiate. The chromogenic substrate X-Phos initiates a blue coloration of nearly all yeast colonies. Molds will soon appear as light blue, diffuse looking colonies and later on form their typical three-dimensional structures in the air space between nutrient pad and plate cover. The coloration of the air structures might be different according to the special type of mold. Growth of bacterial species on Compact Dry YMR is inhibited by antibiotics which are added to the medium.