纯化

Since isolated and purified from Jack bean in 1919, concanavalin A has been used widely especially as an polyclonal mitogen. ConA can stimulate T lymphocytes blast, induce protein-tyrosine phosphorylation in human neutrophils and increase resistance of mice to peritoneal infection by Serratia marcescens.

ConA从1919年被分离纯化以来得到了广泛的应用，是一种有效的多克隆有丝分裂原，可刺激T淋巴细胞增殖及中性粒细胞酪氨酸磷酸化，增强小鼠对白色念珠菌的吞噬功能、对粘质沙雷菌的抵抗力。

Objective To investigate the chemical constituents from the seeds of Mirabilis jalapa. Methods Various chromatographic techniques were used to separate the chemical constituents.

目的 研究紫茉莉子的化学成分方法利用各种色谱技术进行分离和纯化，通过理化方法及NMR、IR和MS 等方法解析其化学结构。

A single chain protein with an apparent molecular weight of 33 kDa was purified from skin of Bombina maxima by a combination of ion exchange and gel filtration chromatography steps. N-terminal amino acid sequence determination indicated that it shares 70%, 64% and 56% identity with those of annexin Ⅱ from the African claw toad, red jungle fowl and human, respectively.

通过阴离子交换、凝胶过滤和阳离子交换层析，从大蹼铃蟾皮肤中纯化到一个表观分子量为33kDa的单链蛋白。N-末端序列比较分析显示，该蛋白与来自非洲爪蟾、红色原鸡和人膜联蛋白Ⅱ的N-末端序列相同的氨基酸分别占70％、64％和56％。

Again, it starts with the performance of ritual purification followed by a prayer at the Kaaba mosque.

再次，它一开始的表现祭祀纯化后，有一个祷告，在天房的清真寺。

Objective To select the optimal process parameters for refining total flavonoids from the leaves of Diospyros kaki using macroporous resin.

摘要目的筛选大孔树脂纯化柿叶总黄酮的最佳工艺，为后续研究提供基础。

Forty-seven strains of bacteria were isolated from the samples of Kumiss products collected from the pastoral area in Xilin Guole,and its biological properties were studied.

本项研究主要以内蒙古锡林郭勒牧区马奶酒发酵菌冻干粉为样品，进行了马奶酒发酵菌的活化、分离、纯化、鉴定及其生物活性的研究。

Objective To purify recombinant heat labile enterotoxin B subunit of Escherichia coli.

目的 纯化基因重组表达的大肠杆菌不耐热肠毒素B亚单位。

In this study, alkylhydroquinone, 10'-heptadecenylhydroquinone [HQ17(1)], isolated from the sap of the lacquer tree Rhus succedanea, was found to inhibit the activity of tyrosinase and to suppress melanin production in animal cells.

在之前的研究中，我们已经由漆树Rhus succedanea的漆液中萃取纯化得到的一个对苯二酚衍生物，此衍生物在第二个碳的位置有17个碳的不饱和碳链，根据其化学结构命名为10′–heptadecenylhydroquinone，并简称为HQ17(1)。

Beta;-lactam antibiotics is normally obtained from fermentation, purification, chemical modification and refining process.

beta；-内酰胺类抗生素一般由微生物发酵、纯化、精制以及化学修饰等过程得到。

Object To explore the method for high quality DNA extract from plant Chinese medicinal materials containing developed xylem Methods The process of DNA includes wash with Tris buffer, extract with CYAB buffer and purification mainly Results Using this method, the total DNA was isolated from Cimicifugae foelida L., Arlia chinensis L., Paeoniae lactiflora Pall.,Aucklandia lappa Decne.,Lindera aggregata Kostern., and Akebia quinata Decne.

目的 为获得高质量的DNA，研究木质部较发达的根，根茎类以及茎木类药材的DNA提取方法。方法总DNA的提取过程包括用Tris缓冲液洗净，CTAB抽提和纯化。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。