酒精醪の改良に関する研究(第14報) : 菌類アミラーゼ生成に適する培養基質について(其の3)

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The authors studied the composition of culture media suited to the production of fungous amylase, using Asp. oryzae 0-9-5 which is intensely active in the liquefaction and saccharification of starch.1) Wheat bran and rice bran, when singly used, were suited as culture media for the production of amylase, but sweet potato powder was inferior to them. Corn meal was not much suited in consequence of acid production from it. The most suited concentration of the culture media was 4%.2) Even when rice bran was added to wheat bran, it exerted no better effect on the production of amylase.3) Using a mixture of wheat bran and sweet potato powder, the less the ratio of the former to the latter is, the less is the production of amylase.4) Production of amylase in a medium containign rice bran and sweet potato powder was inferior to that in the mixture of wheat bran and sweet potato powder.5) When 0.1〜0.2% of NaNO_3 was added to wheat bran, rice bran, corn meal or sweet potato powder, the production of amylase increased to some extent.
公益社団法人日本生物工学会の論文
1958-02-15