Twenty-six strains of Aspergillus fumigaius were screened for toxigenicity for fumitremorgins A and B. Twenty-three of 26 strains can produce fumitremorgin B in rice medium determined by TLC and HPLC, and no fumitremo...Twenty-six strains of Aspergillus fumigaius were screened for toxigenicity for fumitremorgins A and B. Twenty-three of 26 strains can produce fumitremorgin B in rice medium determined by TLC and HPLC, and no fumitremorgin A was detected. The strains of no.C4104 and no. 3656 were inoculated onto 5 kg of rice media and incubated in a modified procedure. Finally, 4.0 g of fumitremorgin B was obtained after extraction and purification by modified methods, and was confirmed by TLC, HPLC, spectral analysis together with other physicochemical analysis. This is the first report of the preparation of fumitremorgin B in China.展开更多
A method for the preparation and identification of fumitremorgin B-hemisuccinatecarrier protein is described. The overall yield of the fumitremorgin B-hemisuccinate (FTBS) after final purification was 78.6%. The FTBS ...A method for the preparation and identification of fumitremorgin B-hemisuccinatecarrier protein is described. The overall yield of the fumitremorgin B-hemisuccinate (FTBS) after final purification was 78.6%. The FTBS was characterized by UV, IR, EIMS,element analysis, and 1H, 13C NMR. IR was also used to determine the formation of complete antigen complexes. The reaction route was analysized.展开更多
Two indole alkaloids were firstly isolated from the metabolite of Alternaria sp.FL25,an endophytic fungus from ficus carica.The structures of the two compounds were identified by spectroscopic analysis(HRESI-MS,1H-NMR...Two indole alkaloids were firstly isolated from the metabolite of Alternaria sp.FL25,an endophytic fungus from ficus carica.The structures of the two compounds were identified by spectroscopic analysis(HRESI-MS,1H-NMR,13C-NMR) and elucidated as Fumitremorgin B and C.展开更多
文摘Twenty-six strains of Aspergillus fumigaius were screened for toxigenicity for fumitremorgins A and B. Twenty-three of 26 strains can produce fumitremorgin B in rice medium determined by TLC and HPLC, and no fumitremorgin A was detected. The strains of no.C4104 and no. 3656 were inoculated onto 5 kg of rice media and incubated in a modified procedure. Finally, 4.0 g of fumitremorgin B was obtained after extraction and purification by modified methods, and was confirmed by TLC, HPLC, spectral analysis together with other physicochemical analysis. This is the first report of the preparation of fumitremorgin B in China.
文摘A method for the preparation and identification of fumitremorgin B-hemisuccinatecarrier protein is described. The overall yield of the fumitremorgin B-hemisuccinate (FTBS) after final purification was 78.6%. The FTBS was characterized by UV, IR, EIMS,element analysis, and 1H, 13C NMR. IR was also used to determine the formation of complete antigen complexes. The reaction route was analysized.
文摘Two indole alkaloids were firstly isolated from the metabolite of Alternaria sp.FL25,an endophytic fungus from ficus carica.The structures of the two compounds were identified by spectroscopic analysis(HRESI-MS,1H-NMR,13C-NMR) and elucidated as Fumitremorgin B and C.
