酯酶

Of the 4 soil enzymes studied, alkaline phosphatase and dehydrogenase were higher than urase and arylsulfatase in activity.

在所测定的4种土壤酶中，碱性磷酸酶和脱氢酶的活性高於脉酶和芳基硫酸酯酶的活性。

In search of databases, the deduced products of sanP, sanQ, sanR, sanS, sanT and sanU show highest similarity to those of nikP2, nikQ, nikR, nikS, nikT and nikU of S. tendae respectively. In comparison with the proteins of identified function, it is indicated that sanP encodes a thioesterase, sanQ encodes a cytochrome P450, sanR encodes a uracil phosphoribosyltransferase, sanS encodes a carboxylase, sanT encodes a histidinol-phosphate aminotransferase and sanU encodes a mutase.

在蛋白数据库中比较结果表明，sanP、sanQ、sanR、sanS、sanT和sanU基因编码的蛋白分别和唐德链霉菌的尼可霉素生物合成基因nikP2、nikQ、nikR、nikS、nikT、nikU六个基因编码的蛋白同源性最高；根据和已知功能蛋白的比较，推测sanP基因编码的是硫酯酶，sanQ基因编码的是细胞色素P450，sanR基因编码的是尿嘧啶磷酸核糖转移酶，sanS基因编码的是羧化酶，sanT基因编码的是组氨醇磷酸氨基转移酶，sanU基因编码的是一种变位酶。

Low methoxyl pectin was obtained from fresh orange peel by using Na2CO3 as an activator to active pectin esterase in the raw material and pectin was de-esterified.

以新鲜橙皮为原料，在盐酸水解乙醇沉淀提取果胶之前，激活并利用果皮中固有的果胶酯酶进行果胶的酶法脱酯，制备低甲氧基果胶，以产品的甲氧基含量和果胶得率为指标，确定最佳工艺条件。

In contrast,the expression levels of Lb est2 in nymphal stages are lower than that in adult stage.2 Gene cloning of AChE and mRNA expression level in L.entomophila2.1 Gene cloning and sequence analysis of AChE in L.entomophilaTwo full length cDNA encoding AChE were cloned from L.entomophila by the methods of RT-PCR and RACE,named Le ace1(GenBank Accession No.:EU854149) and Le ace2GenBank Accession No.

CarE基因在不同发育阶段mRNA表达量的分析结果表明，Lb est1的表达量随着该虫生长发育的进行逐渐降低，至成虫期时表达水平最低；相反，L6 est2在若虫期表达水平较低，而在成虫期表达水平最高。2嗜虫书虱乙酰胆碱酯酶基因克隆及其mRNA表达水平研究2.1嗜虫书虱乙酰胆碱酯酶基因克隆及序列分析利用RT-PCR和RACE技术成功克隆获得嗜虫书虱2个AChE基在的全长序列，分别命名为Le ace1(GenBank登录号：EU854149)和Le ace2(GenBank登录号：EU854150)。

Objective: To investigate the relationship among cholinesterase and Child -Pugh score of cirrhosis. To investigate the clinical significance of serum cholinesterase of patients with liver cirrhosis.

目的：探讨肝硬化患者Child-Pugh分级与血清胆碱酯酶(cholinesterase，ChE)活性的相互关系，以及肝硬化患者血清胆碱酯酶活性测定的临床意义。

The first chapter focuses on study of theestablishment of acetylcholesterase's inhibitor's screening model and the algal fractions'inhibitory activity to acetylcholesterase. The second chapter focuses on study of chemicalconstituents of red alga Plocamium telfairia. The third chapter is a brief review aboutresearches on bioactive constituents of seaweeds.

第一章详述了乙酰胆碱酯酶抑制剂筛选模型的建立及海藻组分对乙酰胆碱酯酶抑制活性的研究，第二章详述了红藻海头红化学成分的研究，第三章对海藻生物活性成分研究概况进行了简要的综述。

Based on the esterase inhibition actions of pesticides,different concentrations of dichlorvos,trichlorfon,malathion and carbaryl were determined by free and immobilized chicken liver esterase.

利用农药对酯酶活力的抑制反应，分别采用游离的和固定化的鸡肝酯酶，对不同浓度的敌敌畏、敌百虫、马拉硫磷和西维因进行了测定。

In this paper,we obtained an Aspergillus niger produing high feruloyl esterases activity by selective medium and reselected by solid state fermentation from the isolated strains from soil.

从自然界中采集土壤样本，使用阿魏酸乙酯为唯一碳源的选择性培养基；进行初筛、固态发酵产酶试验、复筛得到1株高产阿魏酸酯酶的菌株，通过形态学观察鉴定为黑曲霉。

In sludge, the value of acid phosphatase activity was 1. 5～3. 0 times the activity of alkaline phosphatase.

厌氧颗粒污泥中酸性磷酸酯酶活性高于碱性磷酸酯酶活性，前者是后者的1.5～3.0倍。

Primary extractions of PE was acquired by NaCl salting out methods,and its characteristics were studied.

采用NaCl盐析法得到了草莓果胶酯酶粗提液，对草莓果胶酯酶的特性进行了探索。

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。