Under these conditions,the Aspergillus niger LN0401 CMC enzyme activity reaches to 195.6～198.5 U/mL,and FPA enzyme activity reaches to 27.7～30.4 U/mL.
此条件下黑曲霉LN0401的CMC 酶活为195.6~198.5 U/mL,FPA 酶活为27.7~30.4 U/mL。
Added 10 -4 mol/L Co 2+ and Mg 2+ , the enzyme activity was increased by 12.9% and 6.1% respectively, compared to the contrast.
Remaining rate of enzyme activity of Df-mPEG -SPA5000 was as high as 42.3 %, while Df-mPEG -SPA30000 37.9%.
Df-mPEG-SPA5000 酶活保持率达42.3%,Df-mPEG-SPA30000的 酶活保持率为37.9%。
The determination of enzyme activity showed that pG251 was 665 mu/mL, pYFX1 1815 mu/mL and pYFX2 1015mu/mL.
酶活测定结果显示pG2 5 1为 665mu/mL ,pYFX1,pYFX2分别为 1815mu/mL ,10 15mu/mL。
The result showed that the FPA enzyme activity is 2.86U and the CMC enzyme activity is 15.62U.
The optimum reaction condition for the enzyme was at 50℃ and pH 5.5.The relative enzyme activities were above 83% at 50℃ for 8 h and 60% at 60℃ for 2 h.
所产酸性蛋白酶的最佳反应pH5.5,温度50℃,50℃保温8h后其相对 酶活在83%以上,pH5.5、60℃水浴2h后其相对 酶活达60%。
The analysis of enzyme activities of the engineered strain(pHsh/XarB-aguA-XynB) show that it has 11.8U/mL of arabinofuranosidase,6.87U/mL of β-xylosidase,1.53U/mL of α-glucuronidase and 6.58U/mL of xylanaseB activities.
酶活单位分别为:阿拉伯糖苷酶11.8 U/mL,β-木糖苷酶6.87 U/mL,α-葡萄糖醛酸酶1.53 U/mL,木聚糖酶6.58 U/mL.
When incubated with optimum enzyme producing conditions,the β-galactosidase activities of 1.1480 was 0.321 NLU/ml or 2.469 NLU/mg,and the enzyme activities of wch9901 was 0.401 NLU/ml or 6.169 NLU/mg.
在最适产酶条件下,1.1 4 8 0的 酶活力为0.3 2 1NLU/m l粗酶液,比 酶活为2.469 NLU/mg蛋白;
The optimum ventilation quantity and agitation speed were 0.2-0.6 vvm and 400r/min respectively. The highest CMC and FP enzyme activities were 325.0 U/ml and 17.9U/ml.
在通气量为 0.2—0.6vvm、搅拌速度为 400r/min、发酵液pH控制在5.8—6.1的条件下,发酵液的羧甲基纤维素(CMC)酶 酶活最高为325.0mg糖/ml,滤纸糖酶(FPA) 酶活最高达17.9mg糖/ml。
The enzyme’s optimum temperature was about 50℃,and its optimum pH value was about 5.5.Its stabilities of pH and temperature resistance were good ,and its relative enzyme activities were above 83% and 60% in the condition of pH5.5 and 50℃ for 8 hours and pH5.5、60℃ for 2 hours.
该酸性蛋白酶的最佳反应pH为5.5,最佳反应温度为50℃。 50℃条件下保温8h后其相对 酶活在83%以上,pH值为5.5条件下60℃水浴2h后,测定其相对 酶活可达60%。
Specific enzymatic Activity of glycerol dehydratase and 1,3-propanediol oxidoreductase in E. coli JM109 (pUCtac-dhaB, pEtac-dhaT) are 132 U·mg-1 protein and 0.08 U·mg-1 protein.
E. coli JM109(pUCtac-dhaB, pEtac-dhaT)中甘油脱水酶 酶活为132U/mg蛋白,1,3-丙二醇氧化还原酶 酶活为0.08U/mg蛋白。
Specific enzymatic Activity of 1,3-propanediol oxidoreductase in E. coli JM109 (pEtac-dhaT) is 0.2 U·mg-1 protein.
coli JM109(pEtac-dhaT)中1,3-丙二醇氧化还原酶的 酶活为0.2U/mg蛋白。
Specific enzymatic Activity of glycerol dehydratase and 1,3-propanediol oxidoreductase in E. coli JM109 (pUCtac-dhaB-dhaT) are 153 U·mg-1 protein and 0.17 U·mg-1 protein.
E. coli JM109(pUCtac-dhaB-dhaT)中甘油脱水酶 酶活为153 U/mg蛋白,1,3-丙二醇氧化还原酶 酶活为0.17 U/mg蛋白。
The activity experiment showed the enzymatic activity improved from 1774.812NU/mg to 4294.76NU/mg, with a recovery of 79.7%.
而 酶活力由原来的1774.812NU/mg,提高到4294.76NU/mg,总的 酶活损失较小,活性回收率达79.7%。
D-hydantoinase was separated and purified from Burkholderic cepecia 1003 following the steps of the crude separation(the cellular fragmentation 、the precipitation of (NH_4)_2SO_4), the purification of chromatography(Phenyl CL-4B HIC、DEAE Sepharose Fast Flow negative IEX) in this experiment. The purification multiple was 25.11 and the recycle yield of enzymatic activity was 11.87%.
本实验将Burkholderic cepecia 1003 菌株发酵产菌经过粗分离(细胞破碎、(NH_4)_2SO_4沉淀)、层析纯化(Phenyl CL-4B疏水层析、DEAE Sepharose Fast Flow阴离子交换层析)等步骤后得到纯化好的D-海因酶,其纯化倍数为25.11, 酶活回收率为11.87%。
The optimized conditions were studied and confirmed in detail according to yield and activity of enzyme:the molar ratio(acid∶alcohol) was 1∶8,the temperature was 60 ℃,the concentration of acid and lipase was 0.3 mol/L and 45 g/mol,respectively,the rotatation speed was 200 r/min.
综合产率和 酶活两方面因素确定了最佳实验条件:酸醇摩尔比=1∶8、反应温度60℃、酸浓度0.3 mol/L、酶浓度45 g/mol、摇床转速200 r/min。
Under the optimum technical conditions,the activity of enzyme reached 25300 U/g.
When the concentration in the crude enzyme was 6mg/ml,the activity of enzyme was kept intact and active after 10days storage at 30℃.
The pH optimum for crude enzyme was 6.8 for enzymatic degradation of chlorpyrifos,and it had comparatively high activity in the range of pH 6.0～9.0.The optimum temperature for enzymatic activity was at 40℃,it still had comparatively high activity in the range of temperature 20～50℃,the activity of enzyme rapidly reduced at 55℃,its activity was 41% of the maximal activity.
该酶对毒死蜱的酶促降解最适pH为6.8,在pH 6.0~9.0之间都有较高的活性; 最适温度为40℃,在实验温度范围(20~50℃)内该降解酶均具有较好的降解活性,但在55℃时, 酶活迅速降低,降低到最高 酶活力的41%.
The optimum activity of ADH is observed at the temperature25℃ and at pH7.5. The range of temperature stability is below 35℃, the range of pH stability is from 6.5 to 7.5 .The activity of enzyme is activated by Zn~(2+) dramatically and inhibited by Mg~(2+) slightly.
酸碱稳定性范围pH6.5-7.5; Zn~(2+)对 酶活存在明显的激活作用,Mg~(2+)对 酶活有轻微抑制作用。
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The effect of the most promising ones have been looked on the counterparts from mammalian sources and difference in the susceptibility towards enzyme activity inhibition were noted.
The results indicated that cancer stem cells show a higher level of enzyme activity than non-stem cells.
The Cu2+ had strong restrictive effect on enzyme activity.
A rapid but transient decrease in the enzyme activity was observed after 9-12 h after adding glucose to the culture medium.
In the first case, the enzyme activity adsorbed on residual solids after extended hydrolysis was used for hydrolysis of the newly added substrate.
korshinski plantations to assess the effects of the shrub on the physical and chemical properties of the soil as well as enzyme activities.
Inhibitor analysis and studies of enzyme activities with synthetic substrates demonstrated that the culture liquid of Fusarium culmorum contained serine proteinases of various classes.
Effects of temperature and pH on the enzyme activities, their stabilities under various conditions, and the kinetics of exhaustive hydrolysis of glucuronoxylan and arabinoxylan were studied.
The induction of these enzyme activities depends on the concentration of preparations and plant immune status.
The induction of glyoxylate cycle enzyme activities was revealed in the liver and other organs of starving rats.
The enzymatic activity of the mutant was 188 U/ml at 37°C, which was 80% that of the wild type in the same conditions.
It is possible that this mutation severely impairs enzymatic activity and is the underlying basis for the pathology seen in this patient with Hunter syndrome.
After immobilization, microbial cells retained 79-91% of their initial enzymatic activity.
Pretreatment of plant seeds with kartolin-4 (o-isopropyl-N-2-hydroxyethyl carbamate), a preparation with cytokinin activity, reduced the dehydration-induced inhibition of enzymatic activity.
A New Method of Visualization of the Enzymatic Activity of Flavocytochrome b2 in Electrophoretograms
Studies of hydrolytic activity of enzyme preparations of Penicillium and Trychoderma fungi
Microencapsulated PAL has an apparent enzyme activity that is 20% of the activity of enzyme in free solution.
Supplementation of fermentation medium with external nitrogen (organic and inorganic) showed a mixed impact on bacterial activity of enzyme synthesis.
When the quantity of extract or of cells is increased, the specific activity of enzyme, measured by the Warburg manometric method, decreases.
The activity of enzyme recovered by elution after electrophoresis in non-denaturing polyacrylamide gels was wholly dependent on pyridoxamine 5-phosphate.