酶促作用

The preliminary stiochiometric analysis showed that when the enzyme metabolized EDDA, two acetyl groups were removed and ethylenediamine and two glyoxylates were produced in the presence of oxygen.

然后对该酶促反应进行了定量分析：结果显示在IDA氧化酶的作用下每代谢一分子的EDDA将生成二分子的乙醛酸及一分子的乙二胺，同时也检测到过氧化氢的生成。

However, the spleen HO-1 activity could not be induced by hematin and phenylhydrazine.

在HO-1和HO-2的酶促反应中作用底物及所需的辅酶相同。

The result shows that microbial CA can enhance the total amount of conductible ions and Ca~(2+) concentration by 40% or more, which lead to remarkable driving effects on the corrosion of limestone.

结果表明微生物碳酸酐酶能使灰岩溶出的导电离子总量和[Ca2+]提高40%以上，从而对灰岩有显著的酶促溶蚀驱动作用。

The molecular weight of dextransucrase measured by SDS-PAGE was 170 kDa ,which was similar to the enzyme from Leuconostoc mesenteroides. The enzyme had an optimum temperature between 25and 30℃ and an optimum pH of 5.4. It was relatively stable in the range of pH 5.0 to 7.0, but the stability declined rapidly as soon as the temperature rose over 35℃.

以蔗糖为底物，酶促反应的最适温度为25～30℃，最适pH值为5.4，动力学常数Km值为10.43 mmol/L；酶活在pH 5.0～8.0较为稳定，在室温（25℃）保藏4 天仍有59%的酶活力，4℃保存7周酶活力仅下降一半，但在35℃以上失活很快；Ca2+对催化作用有较大的促进，Mg2+有微弱的促进作用，K+对催化反应无影响，Cu2+的抑制作用最强。

The main components in soy protein isolate are 7S and 11S globulins. Studiesof papain on 7S, 11S and mixture of the two proteins suggested that 11S is themain component in SPI to form coagulation. 7S coagulation required higher papainaddition than 11S coagulation, while 11S gel's elastic modular was higher than7S gel. The elasticity of mixture depended on the proportion of 11S. Two proteinases were separated from papain by SP-sepharose cation-exchangechromatography.

首先分离出大豆蛋白中的主要组分7S和11S蛋白，将木瓜蛋白酶分别作用于两种蛋白的溶液和不同7S/11S比例的蛋白溶液，结果表明11S蛋白是大豆蛋白中形成酶促凝胶的主要组分；7S蛋白形成凝胶所用的酶浓度高于11S蛋白所用的酶浓度，但11S蛋白形成的凝胶的弹性强度却远高于7S蛋白；在两种蛋白的混合溶液中11S蛋白的比例对凝胶的弹性强度起决定作用。

The breakdown of fibrin,usually by the enzymatic action of plasmin.

纤维蛋白溶解纤维蛋白的溶解，通常通过胞质素的酶促作用完成

"Fibrinolysis:The breakdown of fibrin, usually by the enzymatic action of plasmin."

纤维蛋白溶解：纤维蛋白的溶解，通常通过胞质素的酶促作用完成。

" Fibrin olysis:The breakdown of fibrin , usually by the enzymatic action of plasmin."

纤维蛋白溶解：纤维蛋白的溶解，通常通过胞质素的酶促作用完成。

The compost of agricultural waste materials is the process that under the function of microorganism, the organic matter turn into well-rotted manure by the way of the organic matter being mineralized and humus and harmless.

农业废弃物的堆腐是在微生物作用下，通过发酵使有机物矿质化、腐殖化和无害化而变成腐熟肥料的过程，在微生物分解有机物的过程中，不但生成大量可被植物吸收利用的有效态氮、磷、钾化合物，而且又合成新的高分子有机物---腐殖质。由于这一过程是在微生物分泌酶的作用下酶促反应过程，研究酶活性变化可以从本质上揭示堆腐的生物行为。

Peroxidase in the spring leaf of orange cv.Jincheng was extracted. The optimum pH, optimum temperature, Km, Vmax and common inhibitors for POD were analyzed.

以锦橙成熟春梢叶片提取过氧化物酶，分别测定了该酶的最适pH、最适温度及酶促动力学参数Km值和Vmax值，比较分析了常见几种POD抑制剂的作用程度。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。