酒精醪の改良に関する研究(第13報) : 菌類アミラーゼ生成に適する培養基質について(其の2)

概要

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The authors studied the composition of culture media suited to the productiion of amylase by Asp. usamii R-1-2.1) As the medium for the production of amylase, corn meal was most suitable, and wheat bran, rice bran and sweet potato powder followed it in a descending order. In each case a concentration of 4 or 3 per cent produced a good result.2) In culture media containing 3 or more per cent of wheat bran and 2 or more per cent of sweet potato powder, a powerful amylase was produced.3) In a medium composed of 1〜2 per cent of wheat bran and 2〜3 per cent of corn meal, the production of amylase was remarkable.4) When a few amount of NaNO_3 (0.1〜0.3 per cent) was added to wheat bran or corn meal, the production of amylase incresed to some extent.5) The most suitable culture medium for the production of amylase was of the following composition : 2 per cent of wheat bran, 4 per cent oc corn meal, 0.2 per cent of NaNO_3 and 0.05 per cent of CaCO_3.
公益社団法人日本生物工学会の論文
1957-11-15