产物抑制
- 网络Product inhibition
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大豆脂氧合酶粗酶转化异丁香酚制备香草醛的过程中存在产物抑制酶转化现象,吸附剂HD?
There is product inhibition in the bioconversion from isoeugenol to vanillin by crude enzyme extracted from soybean .
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目的以谷胱甘肽-S-转硫酶(GST)为模型,探讨有产物抑制时用积分法分析酶反应过程测定底物量的可靠性。
Objective To investigate the reliability of the integrated method for kinetic assay of substrate in the presence of product inhibition using glutathione-S-transferase ( GST ) as model .
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固定化酶活性受载体极性、水含量、有机溶剂的logP值、产物抑制的影响,据此构建了一种可以连续拆分产生(S)(+)萘普生的微水有机溶剂两相体系。
Support polar , water content , the logP value of organic phase and product inhibition effected the activity of immobilized enzyme . According to these reaction conditions , a low aqueous organic biphase system for the continuous production of ( S ) ( + ) Naproxen was developed .
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酒精发酵中代谢终产物抑制消除方法进展
Proceeding of the Study on Depressing the Metabolin Inhibition During Alcohol Fermentation
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蝉拟青霉代谢产物抑制单胺氧化酶和抗肿瘤活性研究
Monoamine Oxidase-inhibiting and Anti-tumor Activities of Metabolites of Paecilomyces cicadae
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美拉德反应产物抑制冷冻甘薯片的褐变
Maillard Reaction Products ( MRPs ) Inhibit Browning of Frozen Sweet Potato Slices
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四种药物对丙二醛和晚期糖化终末产物抑制作用的比较
Comparing inhibition effects of four drugs on ADM and advanced glycation endproducts in rats
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谐波插入方法对中频三阶交调产物抑制作用明显。
The third intermodulation products be decreased obviously .
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与此同时,还可缓解发酵过程的产物抑制,省去耗能的溶剂产品精馏回收过程。
At the same time , end-products inhibition could be moderated and the energy consuming solvents distillation recovery process could be eliminated .
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研究了具有底物和产物抑制以及代谢过量特征的微生物连续培养过程的数学模型。
Mathematic model was studied in continuous cultivation of microorganisms with overflow metabolism , whose growth was inhibited by substrates and products .
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8树脂可以有效解除产物抑制,提高转化率.确定了加入底物量1.5%(?)
The product inhibition can be prevented effectively with the addition of resin HD-8 . The optimum concentration of substrate is 1.5 % (?)
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萃取发酵是解决发酵过程中的产物抑制,提高产率及转化率的有效手段。
Extractive fermentation is an effective method to overcome the product inhibition in the fermentation process and increase the yield and the conversion rate .
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萃取发酵耦合过程是用于减少产物抑制的技术,它可以通过原位方式或外部循环不断移走发酵产物。
Extractive fermentation is a technique that can be used to reduce end-product inhibition by removing fermentation products in situ or in an external recycle loop .
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分别从酶的稳定性、产物抑制和底物变化三个方面探索了原因。
In order to explore the reasons , we research from three aspects , the stability of the enzyme , product inhibition and substrate changes , Respectively .
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在多酶反应体系中,反应的最终产物抑制最初反应酶的活性(通常是第一个酶)。
Feedback inhibition The inhibition of the activity of an enzyme ( often the first ) in a multienzyme reaction sequence by the product of that sequence .
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在发酵制备生物燃料的过程中,需将发酵液中低浓度的丁醇分离出来,以降低产物抑制作用保证发酵连续进行。
During the production process of biofuel by fermentation , the butanol in dilute solution should be recovered to lower the product inhibition and ensure the continuous fermentation .
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海洋环境中的微生物能通过裂解作用或分泌外代谢产物抑制海洋微藻类的生长和繁殖,从而对微藻的种群增长产生影响,这也是利用环境微生物进行赤潮生物学调控的理论基础。
The microorganism from marine environment can decompose and inhibit the growth and reproduction of microalgae . It is a basic theory of prevention and control of Red tide by environmental microorganism .
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并提出了以与反应速度常数成比例的当量水解时间表示酶反应速度的方法,以解决因纤维素结构和产物抑制引起的非线性行为。
To avert some nonlinear influence caused by composition of cellulose material and product inhibition , an equivalent hydrolysis time , which is proportional to reaction rate constant , was used io express enzyme reaction rate .
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众多研究表明:底物甾醇水溶性低、传质差、底物毒害、产物抑制以及产物降解等问题,是影响该工艺路线推广应用的重要瓶颈。
Many studies indicated that poor solubility of sterols , limited mass transfer , substrate toxicity , product inhibition , and product degradation are bottlenecks that seriously limit the industrial application of the transformation process of sterols to androstenone .
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然而,发酵结束后仍有一部分的葡萄糖没有被利用,表明高浓度的异丁醇产物抑制了大肠杆菌的代谢。
However , some glucose was not be used till the end of the fermentation , which showed that the high concentration of isobutanol restrained the metabolism of Escherichia coli . Researches have showed that the tolerance of Bacillus subtilis to isobutanol is higher than that of Escherichia coli .
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原癌基因Bcl一2的蛋白表达产物具有抑制细胞凋亡的效应,其作用与Bax基因的蛋白表达产物相反,Bax过度表达导致细胞凋亡。
The effect of Bcl - 2 is inhibiting apoptosis , and that of Bax is promoting apoptosis .
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荞麦蛋白的提取及其酶解产物ACE抑制活性的研究
Study on extraction of buckwheat protein and the angiotensin I-converting enzyme ( ACE ) inhibitory activities of the hydrolysates
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前期的研究结果表明,一些虫草类真菌代谢产物具有抑制MAO活性和抗抑郁作用。
Preliminary studies have shown that some metabolites derived from Cordyceps have obvious MAO inhibitory activity and antidepressant effect .
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C-S-H凝胶产物在抑制ASR中的作用
The Effect of C-S-H Gel on Alkali-silica Reaction
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PF脱色血红蛋白酶解产物能够抑制广式腊肠中的脂质过氧化反应,但无明显剂量效应。
The decolorized of PF inhibited lipid peroxidation in Chinese Cantonese sausage , but the activity had no relation to the concentration .
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结果显示表达产物能够抑制Hela细胞的增殖,并使Hela细胞周期终止于G2期。
The results showed that expression products can inhibit the proliferation of Hela cells and terminate the cell cycle at G2 phase .
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结果表明,该次级代谢产物能抑制种植性实体瘤(H22)的生长和转移。
The result showed that the secondary metabolites can inhibit tumor growth and metastasis .
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当加入N-乙基顺丁烯二酰亚胺(NEM)时,溶酶体膜上的反应产物被抑制,而基质内的反应仍存在;
N-ethylmaleimide added to incubation medium could inhibit the enzyme activity on the lysosomal membranes but not that in the matrices .
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结论:热应激能体外激活仔猪肝细胞AMPK,促进脂质分解代谢产物,抑制脂质合成代谢产物的生成。
Conclusion : Heat stress activated AMPK activity and enhanced the formation of anabolic products and depressed catabolic products in piglets hepatocytes in vitro .
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根据此模型,可由反应的热谱曲线方便地解析出动力学参数(Km,Ki和Vm)和摩尔反应焓(△rHm),并同时确定产物的抑制类型。
By analyzing the thermograms of these reactions , this model can be conveniently used to calculate both kinetic parameters ( Km , Ki and Vm ) and molar enthalpy (Δ rHm ), and to establish the type of product inhibition simultaneously .