查询词典 catalyzed

Based on the absorbance change of indicators with the concentration of hydrogen ion released from the enzyme-catalyzed reaction, a convenient colorimetry method is established for the assay of acidic phospholipase 〓 and glycogen phosphorylase b Brilliant yellow and bromothymol blue are chosen as indicators for assays of acidic phospholipase 〓 and glycogen phosphorylase b by following the absorbance changes at 495 nm and 615nm respectively The method is simple, sample-saving, sensitive and valid for a wide range of enzyme concentrations.

为了研究糖原磷酸化酶的激活动力学和酸性磷脂酶〓的复性过程，我们根据酶催化反应中释放氢离子浓度的变化引起相应的指示剂的光吸收发生变化的原理，建立了一种简捷的比色法，用于测定酸性磷脂酶〓和糖原磷酸化酶b的活性。选用亮黄和溴麝香草酚兰分别作为酸性磷脂酶〓和糖原磷酸化酶b测活的指示剂，在495 nm和615 nm处检测二者的光吸收值的变化，可以测定酶活。本方法的优点是，可在比较宽的酶浓度范围内进行活力测定，而且操作简单、节省样品、灵敏度高。

In order to make use best of these resources, the lipase-catalyzed acidolysis of lard with caprylic acid to produce functional lipid was investigated.

脂肪酶筛选实验表明，在所选用的五种脂肪酶中，来自T.languginosa的同定化脂肪酶Liopzyme TL IM的催化效果最好。

The lipase-catalyzed acidolysis of soybean oil with caprylic acid to produce structured lipids was investigated.

研究了固定化脂肪酶催化大豆油与辛酸酸解制备质构脂质的工艺。

The hydration reaction catalyzed by the ion-exchange resin,was used to reduce the content of caryophyllene in the heavy turpentine and get the longifolene of high purity.

以离子交换树脂作催化剂，利用水合反应降低重质松节油中的石竹烯含量，再经过提纯获得高纯度的长叶烯。

New flexible ligand derived from this achiral biphenylbackbone was applied in Cu-catalyzed enantioselective 1,4-conjugate additionsof Et_2Zn to chalcone.

进一步衍生得到的非手性联苯型P，N 配体，在Cu催化Et_2Zn对查耳酮的1，4-共轭加成反应中也进行了考察。

In the Cu-catalyzed enantioselective 1,4-conjugate addition of diethylzinc to acyclic enones, the reaction conditions, such as the amount of diethylzinc, solvents, temperature and the reaction time, were investigated in detail with 9a as the standard ligand and chalcone as the typical substrate.

考察了Et_2Zn量、溶剂、反应温度和反应时间等因素对反应的影响，得到了配体与Cu的摩尔比为2.5、1.5倍Et_2Zn用量、甲苯为反应溶剂、-20℃下反应6小时为不对称催化1，4-共轭加成的优化反应条件。

Synthesis of isopropyl chloroacetate catalyzed by acidic ionic liquids was studied,including influences of different ionic liquids,reaction temperature,reaction time and quantity of ionic liquid.

研究了功能化酸性离子液体催化合成氯乙酸异丙酯的反应，考察了不同离子液体、反应温度、反应时间和离子液体与反应物物质的量比等对反应的影响。

It was reported that the synthesis of isopropyl chloroacetate catalyzed by p toluenesulfonic acid supported on activated carbon under microwave irradiation.

报道了用活性炭固载对甲苯磺酸作催化剂，微波辐射法合成氯乙酸异丙酯。

By the catalyzed of F3H, F3'H and F3'5'H, the biosynthesis of anthocyanins branched three pathway to form pelargonidin, cyanidin and delphinidin separately. DFR, F3'H and F3'5'H are the most important genes for introducing new metabolic branches by genetic transformation to plants that lack some kinds of flower pigments.

花色素苷的生物合成主要由于F3H，F3'H和F3'5'H三个关键酶的作用形成3个分支，最终分别生成橙色到砖红色的天竺葵素糖苷，红色的矢车菊素糖苷和蓝色到紫色的飞燕草素糖苷，因此， F3'H，F3'5'H和DFR基因是利用遗传转化引入花卉植物原本缺乏的花色代谢途径的关键基因。

Catalyzed by KF-Al2O3, Knoevenagel condensation of benzaldehyde with ethyl cyanoacetate under microwave irradiation without solvent has been found to proceed with high yield.

采用KF-Al2O3为催化剂，在无溶剂微波辐射下苯甲醛与氰基乙酸乙酯发生 Knoevenagel 缩合反应，得到了较高的产率，并考察了反应条件对产率的影响。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。