萃取的

It is existed competitiveness inhibition of 6APA, non-competitiveness inhibition of PAA and substrate inhibition of Penicillin on the hydrolysis of benzylpenicillin to 6APA and PAA by an immobilized penicillin amidase. The heat conductive coefficients were determined on the vacuum elevation liquid membrane concentration. The thermodynamics and kinetics of PAA extraction were studied on the organic solvent extraction of the above solution.

研究证明固定化青霉素酰化酶裂解反应是典型的底物、产物抑制酶反应，其反应动力学数据表明，青霉素、苯乙酸以及6APA对反应分别存在底物抑制、非竞争性抑制和竞争性抑制；真空升膜浓缩适应热敏性以及粘度不大的物系，对于6APA水溶液的真空升膜浓缩过程研究得到了浓缩实验的传热系数；浓缩液萃取主要是提取出其中的苯乙酸，本文测定了不同温度以及溶剂条件下的苯乙酸溶解度，并观测了苯乙酸萃取动力学。

Essential oil was extracted from the petroleum ether-soluble fraction of the leaves showed having antibacterial activity. It was demonstrated that the essential oil has significant antibacterial activity and the activity of the petroleum ether-soluble fraction is attributed to it. The constituents of the essential oil were analysized by GC-MS.10 relatively abundant components were identified on the basis of MS, among which Geranlgeraniol was found in the essential oil of Perilla frutescens leaves for the first time.

对具有抗菌活性的紫苏叶石油醚萃取物进一步精制，从中提取出挥发油，通过抗菌测试证明紫苏叶挥发油具有良好的抗革兰氏阳性菌和革兰氏阴性菌活性，是紫苏叶石油醚萃取物抗菌活性的来源；采用GC-MS对紫苏叶挥发油进行了成分分析，得到10种含量较高的主要化合物，其中的牻牛儿基牻牛儿醇首次在该植物挥发油中被发现。

Methods: DECB was dealed with heat , acid , alkali , roasting , organic solvent extracting , microorganism zymolysis , then the method of microrespiromete was used to detect/measure the respiratory activity respectively.

目的：研究小牛血清去蛋白提取物（deproteinated extract of calf blood，DECB）中生物活性物质的物理化学性质；方法：分别将小牛血清去蛋白提取物进行加热、加酸、加碱、烘烤、有机溶剂萃取、接种微生物发酵等方法处理，然后分别用微量呼吸检压法检测呼吸活性，结果：采用加热、加碱、加酸，接种微生物发酵的方法进行处理，DECB刺激呼吸活性的能力没有明显改变，而采用烘烤的方法处理，结果DECB的活性完全消失；用有机溶剂萃取DECB，可明显降低DECB刺激呼吸活性的能力，而有机相中含有了刺激呼吸活性物质。

Grind fragrant gynocardia, chinese dwarf cherry, almond or peach kernel, extract with supercritical carbon dioxide to remove polyunsaturated fatty acid-rich oil and get functional oil byproducts.

将马蛋果、欧李、杏仁或桃仁粉碎，通过超临界二氧化碳萃取脱除富含多不饱和脂肪酸的油脂，副产功能油脂，萃余物通过食用乙醇萃取得到苦杏仁苷粗品，粗品重结晶得到高纯度苦杏仁苷，苦杏仁苷可以进一步通过苦杏仁酶水解得到苯甲醛。

Cloud point extraction is related to the conventional liquid-liquid extraction. CPE based on the solubility and cloud point phenomenon of aqueous solutions of surfactants, upon alteration of the experimental conditions such as pH value of solution, ionic strength, temperature, and the solution is separated into phases, which results in the separation of hydrophobe and hydrophile.

浊点萃取(Cloud-Point Extraction， CPE)是近年出现的一种新兴的液-液萃取技术，它以表面活性剂胶束水溶液的溶解性和浊点现象为基础，通过改变实验参数，如溶液的pH值、离子强度、温度等引发相分离，从而将疏水性物质与亲水性物质分离。

Experimental data on supercritical carbon dioxide deacidification of 10% free fatty acid contained oil at 200 bar, 353K, consumed with 2700 g of carbon dioxide indicated that concentration of free fatty acid in the raffinate oil dramatically decreased down to 0.26%, and the oil still retained 1.3% of γ-oryzanols and 94.7% triglyceride.

在超临界二氧化碳萃取蒸馏程序方面，以200 bar、353K和2700克的二氧化碳，在填充27公分高θ型网的萃取槽，脱酸游离脂肪浓度为10%的米糠油，可在塔底获得游离脂肪酸浓度为0.26 %的脱酸油。

The unit of IPL Purify in IPL circulation system was calculated and analyse . Feed temperature is consequential to effect of extract and vapor flux of reboil is marked to the stripper.

对无机循环系统的无机工艺液净化单元进行了工艺参数分析，定量的分析了进料温度和进料量对萃取塔萃取效果的影响，以及再沸器蒸汽流量对汽提塔分离效果的影响。

After being extracted and purified, thiamine which has no fluorescence was oxidized to fluorescent thiochrome, then, it was extracted by n-butanol, the thiochrome in n-butanol were measured with spectrofluophotometer, and the thiamine was determined.

样品经提取、净化后，再利用碱性铁氰化钾K3Fe(N6将没有荧光的硫胺素氧化成能够发射荧光的硫色素，经正丁醇萃取后测定萃取液中硫色素的含量，从而实现对维生素B1含量的测定。

Solvent extraction usually gives high yields of aroma compounds with easy operation; but there are many disadvantages, such as the loss of more volatile compounds in the process of solvent removal, the contamination of GC due to high-boiling and non-volatile materials in extracts.

溶剂萃取操作简单，香味化合物的收率高；但存在许多缺点，如除去溶剂的过程可能会造成许多挥发性成分的损失，萃取物中通常含有高沸点以及非挥发性的成分，对GC仪器造成损害等。

Discussions about them show that optical activity of solute had no evident effect on extraction distribution coefficients.

所选溶剂的萃取过程有着三个方面的共性；对于不同种类的溶剂，萃取过程还存在其特殊的规律。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。