| 1. | Its optimum temperature is 41 , optimum ph is 5 . 4 when the substrate was the calf thymus dna
4 ， dna酶的在70oc后活性开始降低， 90时剩余活力为38 |
| 2. | Optimum ph and temperature for the enzyme activity were approximately ph8 . 0 and 45 , respectively
对胆固醇氧化酶的酶学及物理化学性质进行了初步探索。 |
| 3. | The optimum ph and temperature for the protease activity are ph 10 . 0 and 40 . c . the enzyme is cold - active alkaline serine protease
此菌株为嗜冷嗜碱细菌，经16srrna鉴定，属假单胞菌属。 |
| 4. | There is at least a serine proteinase in leaf , it ' s optimum ph is ph 10 , it ' s molecular weight is about 52 kd
叶片至少有一种丝氨酸蛋白酶，最适ph为10 ，分子量约为52kd 。花瓣最适ph存在差异， ‘萨蔓莎’为ph10 ， ‘贝拉米’为ph6和ph10 。 |
| 5. | An optimum ph for pm h + - atpase hydrolysis activity was around 7 . 0 , and the optimum temperature was 37 in vitro . thaw / freezing decreased the enzyme hydrolysis activity in our experiment
绿豆下胚轴质膜h ~ + - atpase水解活力受温度的影响， 37时，体外反应的水解活力最高。 |
| 6. | It is a metalloprotease , having a basic proteolytic activity with the optimum ph of 9 . 5 and being inhibited by edta . its anti - coagulation activity was characterized
此组分具有碱性蛋白酶活性，最佳反应ph约为9 . 5 ，不耐高温， edta能抑制其蛋白酶活性，是一种金属蛋白酶。 |
| 7. | While , in " belami " petals , the metallo - proteinase and the thiol - proteinase activities of the optimum ph 6 and the serine proteinase activities of the optimum ph 10 are also increased markedly
而在‘贝拉米’花瓣中最适ph6条件下金属蛋白酶、琉基蛋白酶和最适ph条件下丝氨酸蛋白酶的活性都显著提高了。 |
| 8. | The optimum ph for enzymatic reaction is 7 - 12 . and the enzyme is sensitive to temperature . the fibrinolysis activity of nattokinase was determined and analyzed in the thrombolysis experiment in vitro
选用纤维蛋白平板法作为检测酶溶纤活性的方法，进行了一系列的理化性质测定，结果表明：酶水溶液对温度敏感，不宜常温保存。 |
| 9. | Preparing the lactase solution expressed in e . coli , we determinated the optimum ph , ph stability , optimum reaction tempreture , thermal stability , effect of metal ions and chemical reagent , km and vmax its optimum ph was 5 . 8 and 6 . 4 to 7 . 5 , and the optimum tempreture was 45 to 52
以onpg为底物，分别测定了其最适ph值及ph稳定性、最适温度及热稳定性、金属离子和化学试剂的影响以及k _ m值和v _ ( max )值。 |
| 10. | From beginning to end , the ep activities of the optimum ph 10 of " samatha " petal is higher by far than added values those of the optimum ph 6 and the optimum ph 10 of the " belami " petal . this is one of likely reasons that " samatha " can open quickly and fully during vasing
整个过程中‘萨蔓莎’花瓣最适ph10条件下的内肽酶活性远大于‘贝拉米’最适ph6 、 ph10条件下的内肽酶活性的叠加值，这可能是‘萨蔓莎’瓶插期花朵能充分迅速绽开的原因之一。 |
