酯酶

Methods Observe the influence of temperature, acidity and alkalinity as well as protective additive on activity of soybean esterase.

分别测定不同温度、不同酸碱度和不同保护剂对大豆酯酶酶活力的影响。

The concentration of arginine esterase was indicated as enzyme activity.

精氨酸酯酶的浓度以酶活单位U表示。

BPA is a substrate for estrogen sulfotransferase, and bisphenol A sulfate and disulfate are substrates for estrone sulfatase.

BPA是一个雌激素磺酸转移酶的底物，且二苯A硫酸盐和脱硫酸盐是雌激素酮硫酸酯酶的底物。

There are two kinds according to reaction mechanism,they are depolymerizing Enzyme and Pectinesterase.Peclinase are generally discovered in fruitage and microorganism. It was widely used to defecation procession of juice in food industry, procession being retted of flax in spinning industry and feedingstuff additive in farming.

按其作用机理分为果胶解聚酶和果胶酯酶两大类；它普遍存在于植物果实和微生物中，广泛应用于食品工业的果汁澄清加工，纺织工业麻类脱胶，畜牧业的饲料添加剂等。

Chapter 5 covered the quantum chemistry study of the model molecule (410 atoms) of HupA- Acetylcolinesterase complex at HF/4-31G level with point charge model (1929 point charges) to simulate the environment effect on complex active site.

第五章：用HF/4-31G量子化学方法对单分子状态石杉碱甲、活化状态的石杉碱甲以及石杉碱甲-乙酰胆碱酯酶复合物的模型体系（410原子，1929个点电荷）进行了从头计算研究，指认了对于形成稳定复合物贡献最大的石杉碱甲分子的基团和酶的氨基酸残基，揭示了活性位点中水分子的重要作用。

And content of Ach was tested by alkaline hydroxylamine method.

用Morris水迷宫法测试小鼠的空间记忆能力，用比色法测定大脑皮质胆碱乙酰转移酶、胆碱酯酶活性，用碱性羟胺法测定乙酰胆碱含量。

Objective To investigate the optimum condition and properties of immobilization of acetylcholinesterase with chitosan as its carrier.

目的 探讨以甲壳胺为载体固定乙酰胆碱酯酶的最佳条件及固定化酶的理化性质。

Two new cell lines, Xc - 960716H and Xc - 730E, from hemocytes and embryos of Xestia c - nigrum were compared in characterization of morphology, growth, karyology and isozyme phenotypes of Esterase.

本文对八字地老虎(Xestia c-nigrum)胚胎细胞系和血球细胞系的形态、生长速度、染色体特征、酯酶同工酶等进行了分析比较。

The molecular charge distribution of the reactivator is affect the reactivating efficacy directly. Moreover its association with hydroximic acid dissociation constant pAa closely, and it will have a great impact on reactivating ability indirectly.(3) There is likely to exist front molecular interaction between Cholinesterase Reactivators and OPC-inhibited AChE, the action sites mainly lie on the aromatic ring, the substitute R and the hydroixic acid group. They act on the aromatic residues of AChE by Π-Π conjugation .(4) The reached results by Comparative Molecular Field Analysis is useful to design new higher efficacy derivatives for 1, 2, 4-oxadiazole class nonquaternary Cholinesterase Reactivators.

2复能剂分子的电荷分布直接影响复活活性，同时对肟酸解离常数pKa具有重要影响，间接影响复活能力；(3)复能剂与磷酰化酶可能存在前线轨道作用，作用部位可能主要在芳香环及其取代基R和肟基上，与AchE的芳香族残基发生л-л电子作用；(4)通过比较分子力场法研究可以指导1，2，4-oxadiazole类非季铵肟胆碱酯酶重活化剂新化合物的合成，可能得到活性更高的复能剂。

The experiment result shows that these three mayfly nymphs havedifferent band types of protein and esterase isoenzymes.

等三种不同科稚虫的全稚虫匀浆蛋白质等电点聚焦与酯酶同工酶的研究。

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。