黄酮

MethodsHigh-performance capillary electrophoresis was used to analyze the chemical composition of Brassicaceae.

方法利用高效毛细管电泳法分析十字花科植物中化学成分（主要是以黄酮类成分为依据）的差异。

In order to find out the active components, the analysis on chemical composition of the leaf from Broussonetia papyrifera uangyechu through the technology of test tube and paper chromatography were accomplished. The results showed that the leaf contains phenols, amino acids, proteins, polypeptides, saponins, flavonoids and its saponins, sterols, and triterpenes.

为研究光叶楮叶中的化学成分，采用试管法和圆形滤纸层析法对其进行测定，结果表明：光叶楮叶片含有酚性成分、氨基酸、蛋白质、多肽、皂苷、黄酮及其苷类、植物甾醇、三萜等多种化学成分。

Aim To synthesize isoflavone derivatives with α-methy-lene-γ-butyrolactone group and test their inhibition on the adherence of human neutrophils.

目的 设计合成带α-亚甲基－γ-丁内酯结构的异黄酮衍生物并检测其抑制人白细胞黏附作用。

Methods Thirteen new isoflavone derivatives with α-methy-lene-γ-butyrolactone ring at C-7 were designed and synthesized with 7-hydroxyisoflavone as starting material, and their inhibition on the adherence of human neutrophils was tested.

以7-羟基异黄酮衍生物为原料，合成了13个未见文献报道的新化合物，用人多形核白细胞黏附性实验检测目标化合物的活性。

The content of the total flavone in the wild and cultivated Polygonum capitatum from various areas is different,and attention must be paid to the effects of environment on the quality of herbs.

不同产地野生与栽培头花蓼中总黄酮的含量存在一定的差异，应注意生长环境对药材质量的影响。

Result In the different provenances of Polygonum capitatum tested, the content of total flavone and gallic acid varied significantly.

结果］不同种源头花蓼中总黄酮及没食子酸的含量有明显差异。

To compare the content of total flavone and gallic acid in Polygonum capitatum from different provenances.

［目的］比较不同种源头花蓼中总黄酮及没食子酸的含量。

ConclusionThe content of the total flavone in the wild and cultivated Polygonum capitatum from various areas is different,and attention must be paid to the effects of environment on the quality of herbs.

不同产地野生与栽培头花蓼中总黄酮的含量存在一定的差异，应注意生长环境对药材质量的影响。

UV-VIS spectrophotometry method and HPLC were used to determine the content of total flavone and gallic acid in Polygonum capitatum from five different provenances.

方法］采用紫外分光光度法和高效液相色谱法分别测定5批不同种源头花蓼中总黄酮及没食子酸的含量。

ObjectiveTo compare the contents of the total flavone in the wild and cultivated Polygonum capitatum from eleven producing areas.

作者：王祥培，万德光，王祥森，王强，靳凤云，王毓杰头花蓼；，，野生与栽培；，，总黄酮；，，紫外分光光度法

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％。