Chinese scientific name: Geotrichum candidum
Latin scientific name: Geotrichum candidum Link & Magazin.
Morphological characteristics: Deuteromycetes, subphylum Hyphospora, order Hypospora A type of fungus belonging to the genus Geotrichum of the family Trichosporonaceae
. Hyphae are fungal filaments with transverse septa, and some have bifurcated branches. The hyphae are 3~7μm wide. After the hyphae mature, they break into single or chained, long cylindrical arthrospores with blunt ends. The size of arthrospores is (4.9~7.6μm) × (5.4~16.6μm)
. The colonies spread in a plane, grow quickly, are flat, milky white, short-velvety or nearly powdery, with concentric circles that can radiate, and some have central protrusions. White fermentation occurs in liquid culture, in the form of plush or powder. It can weakly ferment glucose, mannose and fructose; it can assimilate glycerol, ethanol, sorbitol and mannitol under aerobic conditions. Can break down pectin and oil. Can assimilate a variety of organic nitrogen sources and urea. It is widely distributed in rotten vegetables, silage, pickles, organic fertilizers, animal manure, various dairy products and soil. It can be used to treat organic wastewater from the fermentation industry and food processing industry and produce single-cell proteins for medicinal, edible or feeding purposes.
When Geotrichum candidum is cultured in wort at 28-30°C for 24 hours, it will produce a white, plush or powdery film. With
fungal filaments, some branches, more or less transversely separated. The mode of reproduction is fission, and the arthrospores formed are single or connected into chains.
The spores are cylindrical, square, oval or round, with blunt ends. The vast majority of arthrospores are (4.9~7.6)
μm × (5.4~16.6) μm. Geotrichum candidum can hydrolyze proteins, most of which can liquefy gelatin and peptone milk, while a few can only
peptone milk but cannot liquefy gelatin. The maximum growth temperature of this bacteria is 33~37℃.
Economic uses:
1. The bacterial protein of Geotrichum candidum has high nutritional value and can be used for food and feed, and can also be used to extract nucleic acids. Geotrichum candidum can also synthesize fat and use organic wastewater from sugar factories, wineries and other food factories to produce feed protein.
2. It can utilize five-carbon sugars and organic acids. It has high protein content and produces ATP, nucleotides, coenzyme A, cytochrome C, etc.
Artificial meat strains, feed yeast.