English translation for "optimal ph"
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- 最佳ph值
最适ph
Related Translations:
- Example Sentences:
| 1. | The optimal temperature , the optimal ph value and the optimal substrate ( l - aspartic acid ) concentration for the enzymatic reaction by adl were 40 , 5 . 0 and 66 . 5 ~ 133g / l , respectively
对固定化细胞性质进行的初步研究发现，其最适温度为40 ，最适ph为5 . 0 ，最适底物浓度范围为66 . 5 133g l 。 | | 2. | Its optimal ph is 7 . 0 and optimal temperature is 28 " c . after 72 hours of inoculation in a inorganic salt medium amended with 200mg / l map and shaking ( 150rpm / min ) at 28 ' c , 72 . 5 % map was degraded
在以甲胺磷(甲胺磷浓度为200mg l )为唯一碳源的无机盐培养基中摇床( 28 ， 150r min ， )培养72h ，测得降解率为72 . 5 。 | | 3. | The enzyme is homologous dimmer with molecular mass 102600 as determined by gel filtration on hplc and subunit mass 52042 as determined by maldi - tof mass spectrometry . the optimal ph of d - hydantoinase is at near 9 . 5 and the optimal temperature is at 45
通过对其生化性质的研究表明，其单体m _ r为52042 ，天然m _ r为102600 ，最适ph为ph9 . 5 ，最适温度为45 ，不同的二价金属离子对酶活性有不同的影响。 | | 4. | When nals was used as the collector in the process , the optimal conditions were the ph of feed solution 5 . 0 - 6 . 0 , air flow rate 100ml / min , the liquid column depths 20cm , the surfactant concentration determined by its cmc and feed concentration . under this condition , the 3 can be above 20 . also , the optimal ph ( 5 . 0 ) was calculated theoretically for the recovery of the cu ( ii )
对以十二烷基硫酸钠为捕集剂的泡沫吸附分离过程的工艺参数进行了研究，并得出本分离系统所确定的最佳工艺参数为： ph5 . 0 6 . 0 ，气体流量100ml min ，液位高度20cm ，最佳表面活性剂浓度由其临界胶束浓度和原料液浓度确定，此时(浓缩比)可达20以上；同时还从理论上推算出泡沫吸附分离铜的最佳ph值范围为5 . 0左右。 | | 5. | The recombinants were constructed by transforming ppic9 a - xynb into p . pastoris gs115 . the assay results revealed that the xylanase gene xynb was overexpressed and secreted effectually in p . pastoris . in 3l fermentor the expression level of xylanase xynba exceeded 1200iu / ml and the expressed xylanase had normal bioactivity . the molecule weight of xynba was determined as about 31kd which is higher than 23kd of original enzyme xynb from streptomyces olivaceoviridis a1 . xynbb was gotten by deglycasylation of xynba , whose molecule weight returned to 23kd . we comparised the enzymatic properties of xynba expressed in p . pastoris , xynbb deglycasylated from xynba and xynb produced from streptomyces olivaceoviridis al : there was little difference among the three enzymes on optimal ph , the optimal ph of xynb and xynba were both 5 . 2 , the optimal ph of xynbb was 5 . 0 ; the optimal temperature of xynb and xynba were both 60 c , while the optimal temperature of xynbb was 50 ? ; because of glycosylation the thermal stability of xynba was better than xynb and xynbb ; the specific activity of xynba and xynbb were 883 . 88iu / mg and 832 . 5hu / mg respectively , which were both lower than 2814 . 45iu / mg of xynb ; the km values of xynb and xynba were similar to each other which were 21 . 56 ( g / kg ) and 20 . 87 ( g / kg ) , while the km value of xynbb was 27 . 10 ( g / kg ) ; the fmax of xynba and xynbb were 4568umol / mg . min and 5329umol / mg . min respectively which were lower than 27623 umol / mg . min of xynb ; additionally all of the three enzymes did not display cellulase activity . they all had well resistance to pepsion and trypsin , and were not sensitive to metal iron , surface active agent and chelating agent . the analysis of different xylans enzymatic hydrolysate revealed : by xynba , that the main constitutions of enzymatic hydrolysate of birch wood xylans were xylotriose and xyloquaiose , which account for 68 . 43 % and 16 . 50 % respectively , additionally there was 11 . 79 % of xylobiose ; the main constitutions of enzymatic hydrolysate of corncobs xylans were xylobiose and xylotriose , which account for 81 . 78 % and 11 . 55 % . the result indicated that this xylanase was a kind of 1 , 4 - b - d - xylanohydrolase and was fit to used in industrial procession of xylooligosacc harides
进一步对xynba进行了脱糖基化处理得到xynbb ,其分子量恢复到23kd ，证明xynba是糖基化蛋白。通过对毕赤酵母重组表达的木聚糖酶xynba 、脱糖基化的木聚糖酶xynbb以及橄榄绿链霉菌a1所产原酶xynb之间酶学性质的比较发现：三种酶的最适ph差异不大， xynb和xynba均为5 . 2 ， xynbb为5 . 0 ； xynb和xynba的最适温度均为60 ， xynbb降为50 ：在耐热性上， xynba由于糖基化作用热稳定性明显高于未糖基化的xynb和xynbb ； xynba和xynbb的比活性分别为883 . 88iu mg和832 . 51iu mg ，明显低于原酶的比活2814 . 45iu mg ； xynb和xynba的km值相当，分别为21 . 56 ( g kg )和20 . 87 ( g kg ) ，而xynbb的km值较大为27 . 10 ( g kg ) ； xynba和xynbb的vmax相差不大，分别为4568 mol mg ? min和5329 mol mg ? min ，明显低于xynb的27623 mol mg ? min此外三种酶均无纤维素酶活性，对胃蛋白酶和胰蛋白酶有很好的抗性，且对作用环境中的各种离子、表面活性剂、螯合剂不敏感。通过对不同木聚糖的酶解产物的糖份分析发现：以桦木木聚糖为底物时，酶解产物主要为木三糖和木四糖，含量分别为68 . 43和16 . 50 ，另外还含有11 . 79的木二糖；以玉米芯木聚糖为底物时，酶解产物主要为木二糖和木三糖，含量分别为81 . 78和11 . 55 。 |
- Similar Words：
- "optimal path in graph" English translation, "optimal performance" English translation, "optimal period" English translation, "optimal personality trait" English translation, "optimal personality traits" English translation, "optimal pitch distribution" English translation, "optimal planning in power system" English translation, "optimal plant size" English translation, "optimal point" English translation, "optimal point of view" English translation
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