菌体成分に關する研究(第5報) : Aspergillus Sydowiの菌体成分に就いて

概要

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(1) Among six strains of Aspergillus syndowi the strain 225 gave the maximum value of the sterol content (1.36% of the dried mycelium).(2) As source of nitrogen in reference to the sterol production of the strain 225,sodium nitrate, ammonium nitrate and peptone gave good yield, showing no or little difference between them, but ammonium sulphate was unsuitable.(3) The effect of sugar concentration betwen 2〜7% to the sterol content of the mycelium was scarcely observed.(4) From the mycelium of the strain 225,crystals of sterol (m.p. 143°/52°) and mannitol were isolated at the yield of 0.8% and 0.46% respectively. But the kind of sterol or purity of ergosterol was not determined.(5) By paper partition chromatography of the mycelium hydrolysed, ten kinds of amino-acids (leucine, isoleucine, valine, proline, alanine, threonine, serine, glycine, glutamic acid and aspertic acid) were qualitatively determined, and by ADAM-KIEWITZ's reaction tryptophane was recognised.
社団法人日本生物工学会の論文
1950-06-15