Aspergillus versicolorの代謝生産物に関する研究

(第1報) Aspergillus versicolorの培養並びに代謝生産物の分離精製

抄録

Aspergillus versicolor was cultivated on 5% malt extract solution containing glucose and peptone for 20_??_25 days at 24°. Two new crystallized pigments were isolated from the mycelia, and they were named ‘sterigmatocystin’ and ‘versicolorin’
By extracting the mycelia by acetone and condensing the acetone, sterigmatocystin could be crystallized. And by purifying the residue by chromatography, versicolorin could be obtained. Sterigmatocystin was pale yellow needle, m.p. 244_??_5°; versicolorin was orange yellow needle, m.p. 282°. And large quantity of d-mannitol was obtained by extracting the mycelia by alcohol.