纯化的

The pigment of Berberis heteropoda Schrenk is a type of anchocyanin and it is strong in resistance against light and to some extent, good in enduring heat and low consistence oxide. But it is poor in resistance against reductant and preservative. It can be applied to the condition of PH. It is also found that sucrose and most of metal ions do not exert negative effects on the stability of the pigment, except Fe3+, Fe2+and low consistence Pb2+, which have some extent effects. Adding stability matter can improve its stability. The harm trace elements contains are within requirement of the National Standard on food safety, As the lexicological study indicates that the pigment does not have any toxicity and mutagenesis, it can be used as edible pigment.

结果表明：大孔树脂吸附-解吸附法纯化黑果小檗色素实验室工艺简单易行，色素回收率高；黑果小檗色素属于花色苷类色素；耐光性好；对热有一定耐受性；对低浓度氧化剂有一定耐受性；耐还原性差；对防腐剂耐性差；适用PH＜6条件下使用；蔗糖和大多数金属离子对色素无不良影响，但Fe~(3+)、Fe~(2+)、Sn~(2+)和低浓度pb~(2+)对色素有影响，加入稳定剂后，可提高色素的耐热性、耐氧化性、耐防腐剂能力；经对有害微量元素进行检测和毒理试验表明，该色素安全无毒，可以作为天然食用色素使用。

Then the protected D-mannitol, mixed with lead tetraacetate, hippuric and acetic anhydride, were refluxed in THF for 18 h in a one-pot two step reaction to afford a chiral precursor-2-phenyl-4-[-2,3-O-]-propylidene-5(4H)-oxazolones.

产物与四乙酸铅、马尿酸、乙酐于THF中回流18 h完成一釜二步反应，纯化后得到含有手性碳原子的环丙烷氨基酸前体-2 苯基-4-[-2，3-O-]丙叉？

These proteins were separated on the basis of differences in charge and hydrophobic characteristics.

分别利用蛋白质的电荷性质和疏水性质对蛋白质进行了纯化。

Its convenient to produce hypericin by the enzyme.The main result was as follows:(1) Total RNA of H.

利用酶法生产金丝桃素具有反应条件温和、产物单一易纯化等优点，有良好的发展前景。

Methods The primary skeletal muscle satellite cells of New Zealand white rabbits were cultured with different adhesion time method and incontinuous Percoll density gradient centrif...

分别采用差速贴壁法和Percoll非连续密度梯度离心法进行新西兰兔肌卫星细胞的原代培养并进行纯化。

Magnetic resonance imaging of MR-MSCs represents a method for noninvasively tracking the quantity and location of intramyocardial delivery in myocardium.

方法抽取猪髂骨骨髓，密度梯度离心后获取单个核细胞层，以差时贴壁的方法纯化培养骨髓间充质干细胞。

The isoelectric point, amino acid composition and spectrum of c-phycocyanin were determined respectively.

提出一种从螺旋藻中提取纯化藻蓝蛋白和糖蛋白的新型分离工艺。

First, different methods to extract soybean isoflavone were compared.

论文研究了大豆异黄酮的不同纯化方法。

High speed countercurrent chromatography was successfully used for the separation and preparation of isomeric compounds .

应用高速逆流色谱法对同分异构体的分离纯化进行研究。

Three flavonoids compounds: kaempferol *!, quercetin *, and isoquercitrin *# were isolated from the leaves of Cyclocarya paliurus Batal.

采用溶剂萃取及多种色谱技术分离纯化，根据理化性质和光谱分析方法鉴定其结构，确定从青钱柳中分离得到山柰酚、槲皮素和异槲皮苷 3个黄酮单体化合物，并用反相高效液相色谱法对其含量进行了测定，测得各自在甲醇和水提取物中的含量：山柰酚 0 。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。