查询词典 enzymes

When the concentration ratio of skatole to enzymes is 5/1, the inhibition ratios of skatole on those three enzymes are 32.4 % 28.7% and 26.6%.

当向三种消化酶中加入不同浓度的粪臭素时，随着粪臭素浓度的增加，α-淀粉酶在265 nm附近、胃蛋白酶在275 nm附近及胰蛋白酶在270 nm附近的紫外吸收峰均有一定程度的升高。

The activities and distribution of digestive enzymes in the juvenile, young and adult stages of Chinese Snakehead Channa asiatica were studied. The results showed that activities of digestive enzymes increased with the development of C.

对月鳢稚鱼、幼鱼和成鱼的主要消化酶活性及分布进行了研究，结果如下：①随着鱼体发育和生长，月鳢消化系统各器官组织的各种消化酶活性不断地增强，尤其是蛋白酶和脂肪酶活性的发育更为明显。

Two inducible and extracellular chitosanases secreted by Penicillium sp. D-l were purified by ammonium sulfate precipitation as well as gel filtration. The purified enzymes of ChoA and ChoB had molecular masses of 93 and 21 kDa by SDS-PAGE. Both ChoA and ChoB have an acidic pH optimum, which were 4.0. The enzymes were stable over the pH range 3 to 5 for 1 h.

采用(NH_4)_2SO_4盐析法和凝胶过滤层析对Penicillium sp.D-1的壳聚糖酶进行分离提纯，得到两种壳聚糖酶，酶A经变性聚丙烯酰胺凝胶电泳分析，结果显示该酶的分子量约为93 kD；酶B经非变性聚丙烯酰胺凝胶电泳和SDS-PAGE分析，得出分子量约为21 kD。

The activity of antioxidant enzymes including peroxide, catalase and superoxide dismutase in crustose aerial hypha and rhizomorphs of A. mellea, as well as the differences in the activity of antioxidant enzymes increased with increasing Mg concentration in growth medium.

随着培养基中Mg浓度的提高，菌丝和菌索POD、CAT、SOD活性都有增加，而且菌丝与菌索之间抗氧化酶活力的差异随着培养基中Mg浓度的提高而增大。

Aspergillus WQ is selected to explore the factors which affect producing enzymes. The best carbon source is crystallitic cellulose+straw powder, the best nitrogen source is peptone+yeast abstract cream, the best growing temperature is 35℃and the best initial pH is 5.5. WQ can produce the largest quantity of enzymes after being cultivated eight days.

从50℃左右牛粪自然堆肥中筛选了一株产酶量较高的曲霉WQ，对影响其产纤维素酶的因素和酶的热稳定性进行了初步研究，结果表明：液体发酵时，该菌最佳碳源是微晶纤维素+稻草粉组成的复合碳源，最佳氮源是蛋白胨+酵母膏的复合氮源，最适生长温度为35℃，最适起始pH值为5.5，在生长第8天产酶量最高。

The main products are: enzymes (phytase, compound enzyme, xylanase, protease, pectinase, amylase, cellulase enzymes) Probiotics (dimethylamino potassium compound probiotics), chemical (sugar beet alkali, etc.) the current domestic market coverage 25 provinces, autonomous regions, the international market has also covered some 20 countries.

主要产品是：酶制剂（植酸酶，复合酶，木聚糖酶，蛋白酶，果胶酶，淀粉酶，纤维素酶等）益生素，化工类目前国内市场覆盖25个省区，国际市场也覆盖20几个国家。

Based on the sources, molecular weights, pI, characters of chromatography and electrophoresis, substrate specificities of these enzymes, it can be concluded that many kinds of nuclease-like enzymes have been found in the tissues of Lumbricus Bimastus.

根据这些酶的来源、分子量、等电点、层析和电泳等行为以及底物特异性等，初步证明，我们新近发现了双胸蚓组织中存在着多种核酸酶样酶。

There are many kinds of proteolytic enzymes in digestive system of Macaca mulatta tcheliensis, and proteolytic enzymes likeness exists between the organs with similar structure and similar functions.

消化系统中蛋白水解酶的种类和数量比较多，且结构相似、功能相近的器官之间，蛋白水解酶的种类和性质相似。

Then pMD-P80 is digested by the enzymes Xho I and Apa I, separated and linked to the linear plasmid pEGPF-C1 after digested by Xho I and Apa I. So the recombined expression plasmid pGFP-P80 is achieved. Then it is sequenced, PCR and digested by the restriction enzymes Xho I and Apa I. The results give that pGFP-P80 is achieved successfully and the insert sites, direction and reading frame are all right. It builds the basis for expressing, purifying, gaining p80 protein from mammiferous cells.

将pMD-P80 分别经Xho I 和Apa I 双酶切和回收，然后与经过Xho I 和Apa I 酶解的真核表达载体pEGPF-C1 连接、转化，获得重组质粒，经PCR，Xho I 和Apa I 限制性酶切和序列测定，鉴定为真核表达质粒pEGFP-P80，并且目的基因的插入位置、方向和读码框完全正确，为在哺乳动物细胞中表达并分离纯化p80 蛋白奠定了基础。

Inflorescence development was divided into four stages, the initiating expansion pseudobulb, initiating inflorescence (1-3 cm in flower stalk length), the initial-branching flower stalk, and full bloom inflorescence, respectively. The activity variations of mannan cleaving enzymes,-mannosidase (EC 3.2.1.25), endo--mannanase (EC 3.2.1.78), and the mannan synthesizing enzyme, GDP-mannose pyrophosphorylase (EC 2.7.7.13), were analyzed during different stages to better understand the role of mannan-metabolizing enzymes during inflorescence development of the Oncidium.

将花梗发育过程分为四个阶段，分别为假球茎刚膨大、刚抽梗（花梗长度约1-3公分）、花梗刚分叉以及花盛开，分析参与分解甘露聚醣之酵素－β-mannosidase（EC 3.2.1.25）及endo-β-mannanase（EC 3.2.1.78），与合成甘露聚醣之酵素－GDP-mannose pyrophosphorylase（EC 2.7.7.13），在不同阶段假球茎内的活性变化，了解在花梗发育过程中代谢甘露聚醣之相关酵素所扮演的角色。

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。