氧化还原作用

Heme oxygenase catalyze the rate-limiting step in the degradation of heme to yield equimolar amounts of biliverdin, carbon monoxide , and iron.

亚铁血红素氧化酶是将亚铁血红素降解为胆绿素、铁和一氧化碳的限速酶，胆绿素则在胆绿素还原酶的作用下转变为胆红素。

The reductive dechlorination of trichloroethylene by surface-bound Fe in ZnO-Fe systems was studied by batch experiments.

通过批量实验研究了在氧化锌-Fe混合体系中，束缚在氧化锌表面的Fe对三氯乙烯的还原脱氯作用。

In the course of groundwater towards the center of the depression cone, not only the dissolution of calcite, dolomite and hematite, the precipitation of siderite and melanterite may occur, but also the cation exchange between Na(superscript +) and Ca(superscript 2+), Fe oxidation-reduction of Fe may occur.

地下水在向降落漏斗中心区的径流过程中，不但发生了方解石、白云石和赤铁矿的溶解作用以及菱铁矿和水绿矾的沉淀作用，而且发生了Na与Ca(上标 2+)的交换、铁氧化－还原反应等一系列复杂的水－岩作用。

The first step in the pathway of bilin biosynthesis is the conversion of heme to biliverdin IX by the heme oxygenase encoded by ho1, then PCB:ferredoxin oxidoreductase encoded by pcyA catalyze BVD to 3Z-PCB.

在血红素氧化酶的作用下，血红素Ⅸ被氧化而共轭环断裂形成胆绿素IV，胆绿素IV被藻蓝胆素合成酶还原和异构化形成藻蓝胆素PCB。

Study on thermostable and salt-tolerant water-soluble polymers with super- high molecular weightChemical degradation of HPAM in aqueous solution and its influence factors werestudied. The oxidative degradation mechanism, including auto-oxidation and chainscission two processes, having longer kinetic chain length was established. Notably, inthe presence of the reductive impurities the oxidative degradation of HPAM inaqueous solution is remarkably accelerated.

2：线性超高分子量耐温抗盐水溶性聚合物的研究研究了部分水解聚丙烯酰胺水溶液中的化学降解作用及其影响因素，确立了它的氧化降解机制，包括自动氧化过程和链式裂解过程，具有较大的动力学链长，当有还原性杂质存在时，降解反应显著加速。

Background:Matrine is an active ingredient extracted from the traditional Chinese medicine called foxtail-like sophora herb and seed or sophorae radix which contains 98%of oxymatrine.Matrine is a kind of alkaloid which belongs to tetranuclear quinolizidine,and the active component is oxymatrine for it could be deoxidized easily into matrine to produce its effect at the condition of the human intestinal tract where there are bacterium,water,hot and so on.

苦参碱是从中药苦豆子或苦参根中提取的有效成分，含氧化苦参碱约98%，属四环的喹诺里西啶类生物碱，其中苦参碱为活性成分，主要是氧化苦参碱在人体肠道内菌、水、热等成分的共同影响下易被还原为苦参碱而发挥作用。

Apple polyphenol extracts had stronger deoxidizing capacity, antioxidant activity and scavenging effects on superoxide an...

苹果多酚提取物具有较强的还原能力和抗氧化活性，对脂质过氧化产生的超氧阴离子自由基具有较强的抑制作用，且在试验浓度范围内其最大抑制率优于同浓度二丁基羟基甲苯的效果。

Studies show CoQ10 can exist in the form of ubiquinol and ubiquinone, which have quite difference in the ability of antioxidation.

然而，CoQ10的作用与其存在的状态应有密切的关联；文献中曾提到CoQ10具有氧化态与还原态，其抗氧化之能力也有所差异。

Having reviewed a large number of relevant literature in detail, combined with some research achievements at sandstone type uranium deposits in China and abroad, The authors try to make an overview of the role of sulphides, particularly the pyrite, in the reduction, precipitation and concentration of uranium at the redox front of sandstone type uranium deposits.

作者通过大量的相关文献的调研，结合国内外在砂岩型铀矿研究方面取得的成果，对硫化物，特别是黄铁矿在砂岩型铀矿氧化－还原前锋线附近铀还原、沉淀和富集过程中所起的作用提出了自己的认识。

Dehydroascorbate reductase catalyzes the re-reduction of DHA to ascorbate by glutathione. Thus, dehydroascorbate reductase is critical for protection of cellular components against oxidative injury.

脱氢抗坏血酸还原酶以谷胱甘肽为底物，催化脱氢抗坏血酸还原为抗坏血酸，在循环利用抗坏血酸、保护细胞组分抵御氧化损伤中发挥重要的作用。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。