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首页> 外文会议>International conference on biotechnology in the pulp and paper industry >A study of ligninolytic peroxidases in pleurotus eryngii using #alpha# -keto- #gamma# -methyltio-butyric acid and different lignin model compounds
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A study of ligninolytic peroxidases in pleurotus eryngii using #alpha# -keto- #gamma# -methyltio-butyric acid and different lignin model compounds

机译：使用＃alpha＃-酮-＃gamma＃-甲基叔丁酸和不同的木质素模型化合物研究杏鲍菇中木质素分解过氧化物酶的研究

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摘要

KTBA was used to assess the oxidative power of Pleurotus eryngii cultures and enzymes. The KTBA oxidation by liquid and solid state-fermentation (SSF) cultures did not correlate with any of the individual activities detected. However, during enzyme purification ethlene release paralleled peroxidase activity, as long as Mn~(2+) or veratryl alochol (VA) (and H_2O_2) were added. Laccases did not oxidize KTBA. However, four KTBA-oxidizing peroxidases wre purified to homogeneity from liquid (L1 and L2) and SSF cultures (S1 and S3). Three of them used indistinctly Mn~(2+) . SImultaneously, it was found that although Mn~(2+) was their preferred substrate, these peroxidases (with the exception of S3) could directly oxidize both 2,6-dimethoxyphenol and VA.
机译：KTBA被用于评估杏鲍菇培养物和酶的氧化能力。液态和固态发酵（SSF）培养的KTBA氧化与检测到的任何单个活性均不相关。然而，在酶纯化过程中，只要添加Mn〜（2+）或藜芦芦荟酚（VA）（和H_2O_2），乙烯释放就会具有与过氧化物酶平行的活性。漆酶不会氧化KTBA。但是，从液体（L1和L2）和SSF培养物（S1和S3）中纯化了4种KTBA氧化过氧化物酶至均质。其中三个模糊地使用了Mn〜（2+）。同时发现，虽然Mn〜（2+）是它们的优选底物，但是这些过氧化物酶（S3除外）可以直接氧化2,6-二甲氧基苯酚和VA。

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