黄酮

For flavonoids containing 2,3-doublebond in their C ring, peroxyl radicals mainly add on the double bond, and the adductsmay transfer to the final products through short chain reactions, which results in theincrease of G values of hydrogen peroxide.

根据实验结果我们认为黄酮类化合物与过氧自由基的反应是加成与电子转移的混合反应。

Part Ⅰ: The changing trend of G values of hydrogen peroxide in the reactionsbetween flavonoids and peroxyl radicals is an important parameter in elucidating thereaction mechanisms,γ-Irradiated aqueous solutions (saturated with 〓) andaerated ethanol solutions of several typical flavonoids were eluted through aluminacolumns and the G values of hydrogen peroxide generated in the solutions weremeasured.

第一部分：黄酮类化合物与过氧自由基反应的过程中生成的过氧化氢值的变化是解释机理的主要依据之一。

Results: Up to date, most of the found chemical compostition of Flos Lonicerae conclude essential oil, flavonoid, organic acid, triterpenoid and microelement; The pharmacal researches show that it can antagonize pathogenic microorganism, anticatarrhals,...

结果 ：至目前为止，已发现的化学成分主要有挥发油、黄酮类、有机酸、三萜类、无机元素等；药理研究表明金银花具有抗病原微生物、抗炎、解热、保肝、抗生育、止血、免疫调节、降血脂、中枢兴奋等作用；临床上主要用于多种感染、各种炎症、高热症、高脂血症、肿瘤放疗、化疗口干症等；金银花质量标准主要以其主要成分绿原酸为指标，检测方法多采用薄层色谱法和高效液相色谱法。

The flavonoids content is rich in the leaves of Acer Saccharum and the leaves have pharmic value.

糖槭叶中含有丰富的黄酮类化合物，具有可观的药用开发价值。

ChinaThe optimum conditions of extracting flavonoids in the skin of phaseolus radiatus were investigated by using the orthogonal design.

研究结果表明：在 70℃下用6倍于绿豆皮重体积 3 0 %的乙醇回流提取 2次，每次 2 h，绿豆皮黄酮类化合物提取效果最好。

In order to inhibit its photolysis and enhance its photostability, the flavonoides were selected for photolysis inhibitors of Parsol 1789. It has been found that some flavonoides, for example Rutin, have better effect of i...

研究发现，有些黄酮类化合物对Parsol 1789的光分解有较好的抑制作用，光分解的最大抑制率可达 93.8%。

These include isoflavonoids, protease inhibitors and phytic acid.

这些措施包括异黄酮，蛋白酶抑制剂和植酸。

The methods for extracting total flavonoids from polygonatum of Chinese traditional medicine were investigated.

研究了从中药玉竹中提取总黄酮的最佳工艺条件。

A novel modification of Hoesch procedure for the preparations of polyhydric deoxybenzoins has invented.

细胞实验研究确认，所合成的大豆异黄酮之毒活性与天然产物相当，具有潜在的应用开发价值。

Results: Two of them may contain the same chemical component patterns, polyose, acid tannic, phenols, organic acid, flavonoids, anthraquinone, cardiac glycoside, triterpenoids and its saponin etc.

结果：两者所含的化学成分类型基本相同，可初步确定其可能含有多糖、鞣质、酚类、有机酸、黄酮类、蒽醌类、强心苷、三萜类化合物及其皂苷等化学成分。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。