类黄酮

Many flavonoids have been found to possess antiphlogistic, estrogenic or anti-allergenic properties.

查尔酮合成酶(chalcone synthase，CHS)是所有黄酮类化合物合成的关键酶，它介导了此类化合物合成的第一步。

In this paper, The author extraction of flavone by methanol from sour carambola leaves by single factor test and orthogonal design test was studied.

利用甲醇浸提，通过单因素试验和正交试验探讨从酸杨桃叶中提取黄酮的最佳工艺条件，为酸杨桃叶中黄酮类化合物的提取提供实验数据。

This paper play emphasis on the mechanism of flavone compounds inhibiting nitrosamine, the change of content in flavones and the results of scavenging nitrite nitrogen, offering some help to seek effective pharmaceutical.

重点探讨黄酮类化合物抑制亚硝化反应的机制，典型植物中黄酮含量变化规律及阻断亚硝胺合成或清除亚硝酸盐的效果，以期为寻求最佳的抗癌药物提供帮助。

Flavonoids, derivatives of chromone or chromane, are built upon a C6-C3-C6 flavone skeleton in which the three-carbon bridge between the phenyl groups is commonly cyclized with oxygen. There are diverse group of plants containing flavone, isoflavone, flavonol, chalcone, ect.

黄酮类化合物系色原烷或色原酮的衍生物，其基本骨架具有C_6—C_3—C_6的特点，即指两个苯环通过中央三碳链相互连接而成的一系列化合物。

ObjectiveTo solve the infection of asymmetric absorption peak in determination of flavonoids in lithocarpus polysachyus rehd leaves.

黄酮类化合物；，，多穗柯；，，三波长分光光度法摘要：目的清除由于多穗柯叶中黄酮光谱吸收峰不对称给定量分析造成的影响。

Total flavanone of Humunus Lupulus L. was extracted with ultrasonic wave technique for the first time, and the method was simple, convenient and no pollution. It can be used for the extraction of the total flavanone of Humunus Lupulus L.

结论］首次运用超声波技术从啤酒花中提取出总黄酮，提取纯度较高，方法简单、易操作，无任何污染，是提取啤酒花中黄酮类物质的有效、便捷的方法。

Technological extrction process of f;avonoid compound with organical solvent was experimented .

摘要本文讨论了银杏叶中黄酮类化合物的提取、分离纯化并测定总黄酮的含量。

In this paper, the basic chromophores of flavonoid and pyrazolone dyes were chosen and subjected to be modified, then polyamino crosslinking groups were introduced into the prepared intermediates to afford cros...

本文选取黄酮和吡唑啉酮类染料的母体结构，拟对它们进行结构修饰，并引入多氨基可交联基团，渴望通过交联染色实现染料在纤维上接近100%的固色率，从而达到完善其各方面应用性能的目的。

The effects of Aloe is related to many components, which include various amino acid, peptide, antioxidation enzyme, mineral elements, vitamines, flavone as rutin, organacid, polysaccharide, alkaloid and hormone and so on.

芦荟的各种功效与其多种营养成份有关，它含有多种氨基酸、多肽、酶、矿物元素、维生素，还含有黄酮类物质等酚性成分、萜类及甾体、有机酸类、糖类及生物碱和激素等。

There is a wealth of organic acids, terpenoid substances, vitamins, enzymes, polysaccharides, such as biological and pharmacological activity of natural ingredients.

澳洲蜂胶富含有20大类、380多种天然成分，包括30多种人体必需的微量元素、20多种氨基酸、数10种芳香化合物、30多种黄酮类物质，还有丰富的有机酸、萜烯类物质、维生素、酶类、多糖等具有生物学和药理学活性的天然成分。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐