Kenji Iwahara

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Acrylamide was polymerized to give polyacrylamide using manganese peroxidase (MnP) produced by the basidiomycete Bjerkandera adusta. The molecular weight of the polymer synthesized by MnP was 155000, higher than those obtained with other reaction systems using horseradish peroxidase and a redox initiator. The 13C-NMR spectrum showed that polyacrylamide was(More)
Triosephosphate isomerases [TIMs, EC] were purified from two ammonia-oxidizing bacteria: Nitrosomonas sp. K1 (K1), Nitrosomonas sp. TNO632 (TNO). The molecular masses of the native enzymes were estimated to be about 53.6 (K1-TIM) and 51.9 kDa (TNO-TIM) by gel filtration, whereas SDS-PAGE produced one band for each enzyme with M(r) values of 27.1(More)
 Lignin-degrading manganese (II) peroxidase (MnP) purified from the culture of a wood-rotting basidiomycete, Bjerkandera adusta, was used in the polymerization of guaiacol. MnP was found to catalyze polymerization of guaiacol in 50% aqueous acetone, dimethyl formamide, methanol, ethanol, dioxane, acetonitrile, ethylene glycol and methylcellosolve. Maximum(More)
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