查询词典 extraction

In this paper, the active compound -α-HT from Ampelopsis cantoniensis was studied on its extraction, purification, detection and antioxidative activity.

本论文以食品化学研究室的相关研究成果为基础，对已筛选的植物资源中的活性成分α-HT 就其在抗氧化方面的作用进行了系列研究。

The effects of the ratio of water and the sample, extracting temperature, extracting time, and the sample particle size on water-soluble active ingredients of Ampelopsis grossedentata were investigated with single factor and orthogonal experiments as a measure of total flavones and water extraction ratio.

以水溶性活性成分总黄酮和水浸提率作为衡量浸提效果的评价指标，分别采用单因素和正交实验L9(34)确定了茶水比、浸提温度、浸提时间和样叶粒度对显齿蛇葡萄总黄酮和水浸提率的影响，得出了影响的主次顺序为茶水比、浸提温度、样叶粒度和浸提时间。

Dihydromyricetin have many physiological activities, and its source is broad. Ampelopsis grossedentata possess DMY with high content. Now the research focusing on DMY is about pharmacological aspect. In order to make the best use of DMY, it is very necessary to study on extraction purity and application character of DMY.

二氢杨梅素具有多种生理活性，来源广泛，在显齿蛇葡萄中具有很高的含量，目前对其的研究主要为药理方面，为了真正实现物尽其用，进一步系统研究其提取纯化和应用性质等是非常必要的。

Objective To optimize the analysis condition of SDE for the extraction of amphetamine in urine.

目的建立一滴溶剂萃取技术在尿样中苯丙胺类毒品检验的提取优化方法。

The present invention is concerned with a method for the extraction of magnesium from magnesium-containing materials such as magnesite, dolomite and silicates materials like serpentine residues, products from the amphibole or pyroxene group.

本发明涉及一种从含镁原料萃取镁的方法，该含镁原料包括菱镁矿、白云石、含镁硅酸盐物质象蛇纹石残渣，来自角闪岩及辉石类的产品。

A suitable method for extraction of amygdalin from hawthorn has been established.

建立了从山楂中提取苦杏仁甙的方法，样品先用石油醚脱脂，然后用甲醇进行索氏提取。

Crystallization was the key step in the process of extraction of amygdalin. Considering the purity and crystallization ratio of amygdalin, the amounts of ethanol and ether was chosen as 1:18 and 1:0.4, crystallization time was 36h.

结晶是分离、纯化苦杏仁苷的主要步骤，本文综合考虑结晶纯度和结晶得率，乙醇添加比为1：18，乙醚添加比为1：0.4 ，结晶时间选择36h。

ObjectiveTo optimize the extraction process of total flavonoids in Anchusa italica Retiz.

目的研究维吾尔药牛舌草中总黄酮的最佳提取工艺。

objectiveto optimize the extraction process of total flavonoids in anchusa italica retiz.methodsthe content of total flavonoids was determined by uv spectrophotometer.the influence of each factor was measured by orthogonal experiments.

目的研究维吾尔药牛舌草中总黄酮的最佳提取工艺。方法采用正交实验确定各因素的影响大小，确定维吾尔药牛舌草中总黄酮的最佳提取条件，通过紫外分光光度法测定总黄酮含量。

The juice extraction rate was 80.3 %. conclusion the results obtained can be applied to the production of angeleno juice beverage.

结论可为安哥诺李果汁饮料的生产加工提供参考。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。