类黄酮

Rotenone derivatives from derris have been an important isoflavonoid with insecticidal activity.

鱼藤酮类衍生物是一类从鱼藤属等植物中提取出来的具有杀虫活性的异黄酮类化合物。

The extraction method of flavonoid in pomelo peel was studied with different ways.

通过各种不同的方法提取柚皮中的黄酮类化合物，比较不同提取方法的提取效率及提取物中黄酮类化合物的含量，从而探讨最佳的提取方法。

First, this research developed a set of simple and effective technologies for preparative extraction and separation of flavonoid and phloridzin from Lithocarpus polystachyus, which includes:(1) Microwave-assisted extraction of flavonoid from tender leaves of Lithocarpus polystachyus Rehd. The extraction conditions are as the follows, 1.2 % of Ca2 water solution, solid-liquid ratio of 1:12, pre-boiling for 5 min, 800 W of microwave treating for 25 min.

本研究首先研发出一套简单、有效的制备性提取分离多穗柯黄酮类及其根皮苷工艺，这套工艺包括：(1)微波辅助氢氧化钙水溶液提取多穗柯黄酮，最佳工艺条件为用1.2 %氢氧化钙水溶液为提取液，料液比1：12，预煮时间5min，微波功率800W处理25min。

By studying the effect of pueraia lobata isoflavones on lipid peroxide and superoxide dismutase in animal tissue, this paper suggests that PLIs is an effective antioxidant.

通过葛根异黄酮对动物组织中的脂质过氧化产物含量和超氧化物歧化酶活性进行研究，探讨葛根异黄酮类化合物的抗自由基作用。

To select superior medicinal provenances of Cyclocarya paliurus, the geographic variation of flavonoid compounds (kaempferol, quercetin, and isoquercetin) in leaves of one-year-old seedlings of 11 provenances was studied.

以青钱柳Cyclocarya paliurus 11个种源1年生苗的叶片为材料，研究青钱柳叶片中黄酮类化合物的地理变异，初步筛选出黄酮类化合物质量分数高的优良药用种源。

The optimum technology of extracting flavonoids in polygonatum was studied by orthogonal test.

用正交试验法对玉竹中的黄酮类化合物的提取工艺进行了优选研究，采用正交表L16(4^5)，以提取时间、提取温度、提取次数、提取剂中乙醇含量以及料液比为因素，以总黄酮显色液的吸光度为指标进行试验。

This paper compared two kinds of rose families sorbus of different effective spots of total flavonids content. We get a better process of total flavonoids abstraction from the branch of Sorbus tianschanica,.Under the best process of total flavnoids ,two flavnoids were isolated from them. Preliminary affirmed two kinds of compounds belong to flavanone, two kinds of structure just substituent had a dissimilarity separately. This thesis was a part of a national natural science fund to subsidize.

除此，本论文还对新疆天山花楸的枝干总黄酮的提取工艺进行了研究，得到了最佳提取工艺，在最佳提取工艺的条件下对新疆天山花楸的枝干进行了系统的提取和硅胶柱层析，得到两种化合物，初步认定两种化合物属于二氢黄酮类，两种化合物的结构相似，只是个别取代基有所不同，本论文是国家自然科学基金资助项目。

In addition, rutin has many other functions, such as anti-inflammatory, antiallergic, diuretic, spasmolytic, reducing blood-fat, cardiotonic, protecting ulcer surfaces, etc. Therefore it has been used in clinical treatment.

芦丁，3，3′，4′，5，7，—五羟基黄酮-3-芸香糖苷，又名芸香苷，是一种从植物中提取得黄酮类化合物，无论在什么条件下，都具有多方面的生理活性和电化学活性。

Synthesis of 7, 3', 5'-Trisubstituted Flavanones and Flavonols

篇名 7， 3'， 5'-三取代黄烷酮和黄酮醇类化合物的合成

A research indicated that flavonoids in corn silk not only were greatly high in content but also had preferable bioactivity: for instance, corn silk total flavoniods extracts have functions on increasing the adapt ability to exercise tolerance, resisting the produce of fatigue and accelerating the dispelling of fatigue.

有试验表明，黄酮类化合物在玉米须中不仅有较高的含量还有较高的生物活性：例如玉米须黄酮提取物对增加机体运动负荷的适应能力、抵抗疲劳产生和加速疲劳消除方面具有明显的作用。

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