Varbanets' L D, Avdiiuk K V, Borzova N V, Kharkevych O S, Zhdanova N M, Seĭfullina I I, Martsynko O E, Piesarohlo O H
Mikrobiol Z. 2009 May-Jun;71(3):3-10.
The influence of different factors on biosynthesis of extracellular alpha-amylase of Aspergillus sp. 55 grown at submerged cultivation has been studied. The optimal composition of nutrient medium (1 g of starch and 0.5 g of NaNO3 per 1 l) was chosen. The enzyme preparation has a wide pH optimum of activity (4.5-9.0), thermooptimum at pH 6.5 was 60 degrees C, at pH 4.5 and 9.0--50 degrees C. The inhibitory effect of coordinative germanium compounds on amylolytic activity of the preparation was shown. The paper is presented in Ukrainian.
研究了不同因素对曲霉属55号菌株在深层培养条件下胞外α-淀粉酶生物合成的影响。选择了最佳营养培养基组成（每升含1克淀粉和0.5克硝酸钠）。该酶制剂具有较宽的最适pH活性范围（4.5 - 9.0），在pH 6.5时的最适温度为60℃，在pH 4.5和9.0时为50℃。研究表明了配位锗化合物对该制剂淀粉酶活性的抑制作用。本文用乌克兰语发表。
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