Lignin peroxidase can degrade lignin in a relatively high efficiency, the highly efficient application of for environmental prevention and governance was promoted by exploring effects small molecule substances on activities. In this study, (LiP) gene from Irpex Lacteus heterologous expressed Escherichia coli. The activity recombinant LiP 11.2 U/mg, optimum temperature 37℃, pH 3.5. range 20-45℃ ...

The aim of this study is to comprehensively assess the change in oxidoreductive enzyme activities, due potential catalyzing oxidation and reduction reactions, as basic processes on undrained drained peat soils. On peatlands, a significant decrease activities was observed such xanthine oxidase, urate phenol peroxidase with an increase depth. It connected significantly higher porosity values, hot...

Acetone fractionated peroxidase from crude extract of Brassica oleracea leaves (Cabbage) was purified in three steps on chromatographic columns, using Sp-Sepharose, DEAE-Sepharose and Con A-Sepharose. The specific activity of purified main isoenzyme (BOC-POD) is 1887 u/mg protein with RZ: 3.1, which is 172 times more than the RZ of crude extract with 4.3% recovery. The molecular weight of BOC-P...

We determined selenium concentrations and activities of the selenoenzyme, glutathione peroxidase (EC 1.11.1.9), in the plasma and erythrocytes of 38 apparently healthy women. We determined selenium concentrations directly by polarized Zeeman-effect flameless atomic absorption spectroscopy. Within-run precision studies for the assays gave CVs of 5.6% for a mean erythrocyte selenium concentration...

The locations of cytochrome c peroxidase and catalase activities in the two Gram-negative bacteria Pseudomonas stutzeri (N.C.I.B. 9721) and Paracoccus denitrificans (N.C.I.B. 8944) were investigated by the production of spheroplasts. In both species the cytochrome c peroxidase was predominantly periplasmic: 92% of total activity in Ps. stutzeri and 98% of nonmembrane-bound activity in Pa. denit...

Peroxidase has been investigated as a potential marker protein for the prediction of response to hormonal therapy in tumors of steroid-sensitive tissues, but the cellular origin of the enzyme has been questioned. To localize the observed peroxidase activity, in this study cell subpopulations were isolated from mammary tumors induced by 7,12-dimethylbenz(a)anthracene and from mammary tissue of v...

Two limiting structures may be assigned to the primary derivative of peroxidases (Compound I) demanding either (a) total or (b) partial retention of peroxide components. It is now shown that (a) interaction of horseradish peroxidase with m-nitroperbenzoic acid, in 15 mM phosphate, pH 6.2, 25", leads to the stoichiometric formation of the enzymeperoxide derivative, m-nitrobenzoate and 1 proton; ...

this study was performed to investigate the effect of putrescine and spermine on some physiological and biochemical characteristics and antioxidant enzymes activity of peach (prunus persica cv. alberta) and almond (prunus dulcis cv. rabi) seedlings under water deficit. the first factor was water regime at two levels (80% or 50% of soil available water), and the second factor was polyamine treat...