蛋白酶

However, commercially available CPB purified from porcine pancreas was very expensive, and was not totally free of other proteases, such as trypsin and chymotrypsin.

到目前为止，商业途径获得的羧肽酶B 主要从猪胰脏中提取，使得产品价格昂贵，同时也不可避免地混杂有其它蛋白酶，如胰蛋白酶，胰凝乳蛋白酶。

With the aim to develop a modified process for producing peptone,this paper presented studies on producing peptone by enzymatic hydrolyzing fish meal of Codfish with cultures of Asperigillus oryzae as proteinase source.

实验结果表明，米曲霉培养液对鳕鱼粉具有明显的蛋白酶活性，能将鳕鱼粉中的蛋白质水解；适于米曲霉产蛋白酶的培养条件为初始pH 5。

Objective To investigate the correlation of matrix metalloproteinase-2,-9 (MMP-2,MMP-9) in transitional cell carcinoma of bladder with tumor invasion and metastasis.

目的：探讨基质金属蛋白酶2（MMP-2）、基质金属蛋白酶9（MMP-9）的血清含量及组织表达与膀胱移行细胞癌侵袭转移的关系。

In Chapter 2 of this thesis, the kinetic equation of substrate reaction in presence of denaturant has been derived. A re-examination of the effect of high concentrations of guanidine hydrochloride on the inactivation of papain, taking into consideration the effect of high concentrations of guanidine hydrochloride on the Michaelis constant, showed that, for papain, the substrate gives no protection on its inactivation.

我们在第二章中推导了变性剂存在下的底物反应动力学方程，并在考虑了高浓度盐酸胍对酶催化反应米氏常数的影响的前提下，根据推导的动力学方程重新分析了盐酸胍存在下木瓜蛋白酶的失活动力学，结果表明底物对木瓜蛋白酶的失活没有保护作用。

The enzyme activity in fermentation liquid could be inhibited by PMSF and DFP.

该发酵液所含蛋白酶活性能够被丝氨酸蛋白酶抑制剂PMSF，DFP完全抑制。

Without Pasteurism, some enzymes still remain in the green draught beer, among which active protease A and the prior substance of inactive protease A can destroy green draught beer's foam protein, therefore, the foam's stability of green draught beer will be reduced.

纯生啤酒因未经巴氏灭菌而残留一些酶类，其中具有活性的蛋白酶A 及非活性的蛋白酶A 前驱物的存在会直接或间接地破坏纯生啤酒的泡沫蛋白，从而使纯生啤酒的泡沫稳定性降低。

This experiment utilized dispase 、 alkaline proteinase to hydrolyze egg albumin, only to find that the best condition of the dispase is :at the temperature 45 °C、 for pH 7.0、 addition of the enzyme is 5000u/g substrate, the reaction time is 5 h, and we can get the yield of dissolvable peptide at 81.3%.

利用中性蛋白酶、碱性蛋白和酸性蛋白酶对蛋清白蛋白进行水解，在相同的条件下筛选出符合本实验的最佳用酶，然后通过正交试验确定了这种酶水解的最佳工艺条件。

The extraction of the residue endogenic protease of waste brewer yeast was studied with the ultrasonic cell-break method.

采用超声波破碎法对啤酒废酵母残余的内源蛋白酶进行提取，并以酪蛋白为底物测定内源蛋白酶的活力。

Objective: The purpose of our studies are gaining a better insight into the effect of genistein on mesangial cell"s phenotype change and ECM expression plus degradation under DN circumstances.We add genistein with different concentrations in high glucose cultured rat mesangial cells;feed DM rats with the single concentration genistein for different days;to explore the expression of SMemb,the mark of mesangial cell"s hypertrophy phenotype change;to examine the synthesis of Fn as well as the change of the balance between MMP-2 and TIMP-l;to comprehend its effect on renal pathological changes of DM rats and some related factors;trying toexplore the possible mechanisms.Through these studies,we will have some information about the experimental value of genistein in DN field.

目的：为了研究金雀异黄素对DN环境下大鼠MC肥大表型转换标志物SMemb和ECM分泌及降解的影响，我们拟在细胞水平以不同浓度的金雀异黄素作用于高糖培养下大鼠MC，在动物水平以同一浓度的金雀异黄素作用于DM大鼠不同时间，观察细胞表型转换标志物SMemb、ECM主要成分Fn、ECM降解酶系统基质金属蛋白酶—2(MMP-2)／基质金属蛋白酶抑制剂—1(TIMP-1)表达的变化，同时观察金雀异黄素对DM大鼠肾脏病理及影响肾脏病进展的糖脂代谢紊乱的影响，并进一步探讨金雀异黄素发挥作用的可能机制；为明确金雀异黄素在DN治疗中的地位及意义提供实验依据。

The production of subtilisin-like protease and total extracellular protease from different subcultures of Beauveria bassiana was investigated in cicada exuviae and maggot cuticle liquid culture.

以蝉蜕、蝇蛆壳两种培养基培养球孢白僵菌不同世代菌株，分析其类枯草杆菌蛋白酶（Pr1）和总胞外蛋白酶的产生水平及其与菌株毒力的相关性。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。