金属离子对香菇纤维素酶、漆酶和木质素过氧化物酶活性的影响

Effects of Metal Ions on the Carboxymethyl Cellulase, Laccase and Lignin Peroxidase Activities of Lentinula edodes

测定了6种常见金属离子对香菇(Lentinula edodes)羧甲基纤维素酶、漆酶和木质素过氧化物酶活性的影响。结果表明,Na^+、K^+、Ca^(2+)、Mn^(2+)、Fe^(2+)、Mg^(2+)对香菇羧甲基纤维素酶活性具有激活作用,其中K^+激活效果最强;Fe^(2+)能明显抑制漆酶活性;Mn^(2+)、Ca^(2+)、K^+、Mg^(2+)和Fe^(2+)对木质素过氧化物酶活性有抑制作用,Na^+对木质素过氧化物酶活性具有激活作用。

The effects of six kinds of metal ions on the activities of carboxymethyl cellulase, laccase and lignin peroxidase were analyzed in the paper. The results showed that Na^＋, K^＋, Ca^2＋, Mn^2＋, Fe^2＋ and Mg^2＋ could improve carboxymethyl cellulase activity, and among them K^＋ had the strongest activation effect, Fe^2＋ could decrease laccase activity, Mn^2＋, Ca^2＋, K^＋, Mg^2＋ and Fe^2＋ could decrease lignin peroxidase activity, while Na^＋ could improve lignin peroxidase activity.