[Enhance of reproduction of Phanerochaete chrysosporium by adding natural lixiviums in liquid medium].
Great promotion to the reproduction of white rot fungus (Phanerochaete chrysosporium) by adding natural lixiviums such as from wood, maize core and potato in liquid medium was found in this research. Incubated in the liquid medium contained 10 g/L glucose as carbon source with natural lixiviums for three days, the production of mycelium pellet reached more than 80 g/L, which was 5 times of without natural lixiviums. Incubated in the liquid medium contained 5 mg/L glucose as carbon source with natural lixiviums for three days, the production of mycelium pellet can reach 69.5 g/L, while the production of medium without natural lixiviums was very low. When the basic medium contained 1 g/L-20 g/L glucose as carbon source, the production of mycelium pellet in 3 days can only reach 12.5 g/L to 14.5 g/L. The media with potato lixiviums were easily contaminated and the media with maize core lixiviums were easily bulking, while the media with wood lixiviums were not easily contaminated and bulking. Medium with wood lixiviums can produce more pellet than other medium, endure contamination and keep better sedimentation capacity. So, wood lixivium is better additive to the culture of white rot fungi in liquid medium. Addition of the mixture of wood, maize core and potato lixiviums is of advantage to the production of mycelium pellet. The difference of the production in the media with different amount of wood lixiviums showed little in the first 3 days, while it expanded after 3 days. Wood lixiviums stimulate the growth of P. chrysosporium instead of supply organics which fungi need.
Lin
Gang
G
Department of Environmental Science and Engineering, Tsinghua University, Beijing 100084, China.
Wen
Xianghua
X
Qian
Yi
Y
D003470:Culture Media; D004305:Dose-Response Relationship, Drug; D005947:Glucose / Q000494:pharmacology; D020075:Phanerochaete / Q000254:growth & development*
D003470:Culture Media; D005947:Glucose