チャイロコメノゴミムシダマシ (Tenebrio molitor) の幼虫の消化管に存在するトレハラーゼの性状

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概要

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• The present paper deals with the nature of the enzyme trehalase extracted from the alimentary tract of fully grown meal-worms. The effect of pH on the rate of enzymatic hydrolysis of trehalose was examined. The optimum pH was found to be 5.6 and the hydrolytic activity sharply decreased in alkaline side. The temperature effect on the activity of this enzyme was studied over the range 5°-55℃. The activity was maximum at 45℃ and no activity was detectable at 55℃. The activation energy determined after Arrehenius' manner was 11.9×10^3 cal/mol. The effect of several kinds of metallic compounds on trehalase activity was studied. Of those examined, none caused acceleration of this enzyme activity. The inhibitory effect was in the following order; AgNO_3, HgCl_2>CuSO_4>MnSO_4>Pb(CH_3COO)_2>FeSO_4>CoCl_2, ZnSO_4>MgSO_4.

• 社団法人日本動物学会の論文
• 1977-03-25

著者

• 原田 良信

  東京都立久留米高等学校

関連論文

• チャイロコメノゴミムシダマシ (Tenebrio molitor) の幼虫の消化管に存在するトレハラーゼの性状
• 魚類の血糖量について(第一報)(生理)

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