类黄酮

This product not only contains VA, VC, VE, VK, VB1, VB2, flavonoid, and coumarin etc., but also is replenished with hawthorn (containing large amount of malol,malic acid, VB2, VC, carotin, calcium, iron, phosporus, flavone and other nutritive substances and numerous alkaloids, more than twenty kinds of ingredients all together) and apricot, which make it more nutritious and easier to be absorbed by the body.

沙棘精不仅保留了沙棘中的维生素A、C、E、K、B1、B2、黄酮类、香豆素等成分，而且因添加了山楂（大量的熊果酸、苹果酸、维生素B2、维生素C、胡萝卜素、钙、铁、磷、黄酮素等二十多种营养物质和大量的生物碱）、杏，使其营养成分更加丰富并且更容易被人体均衡吸收。

PAL activity, chitinase activity, total Polyphenol content and total Flavonoids content in soybean leaves induced by the same crude toxin and race were similar, it stated that the crude toxin is an important factor which can induce resistant substances, but the induced speed and the induced intensity by the crude toxin and conidium were different. Firstly, the induced speed of crude toxin which induced PAL activity and total Flavonoids content of resistant soybean varieties was faster than speed of C.

同一生理小种的粗毒素与灰斑病菌对大豆叶片内PAL活性、总多酚类含量、总黄酮含量以及几丁质酶活性等几种生化指标均表现出相似的诱导作用，由此可推断粗毒素是诱导大豆叶片内的PAL活性、总多酚含量、总黄酮含量以及几丁质酶活性产生变化的主要生物因子，只是二者在对抗性不同的大豆品种的诱导速度及强度上存在一定的差异。

The contents of total flavones in Marchantia convolute were determined through developed visible spectrophotometry. The reversed phase high performance liquid chromatography was set up to determine the contents of flavonoids in Marchantia convolute.

采用改进的铝盐显色分光光度法测定拳卷地钱总黄酮含量；采用反相高效液相色谱法测定拳卷地钱黄酮类化合物中芹菜素、槲皮素和木犀草素的含量。

In the present study, black soybean koji were first prepared with Aspergillus awamori. The change of total phenolics , isoflavone content and antioxidant activity of black soybean and black soybean koji after heating at various temperature（40,60,80,100℃）for 30 min and storage at 4℃ and 25℃ for 120 days under different packaging conditions（desiccant + deoxidant, desiccant, deoxidant , without desiccant and deoxidant）was investigated. The antioxidant activity examined included DPPH radical-scavenging effect, Fe2+-chelating effect, trolox equivalent antioxidant capacityand reducing power.

本研究以Aspergillus awamori作为菌酛制备黑豆麴，探讨黑豆及黑豆麴经不同温度（40、60、80及100℃）加热30分钟，以及在不同包装条件（乾燥剂+脱氧剂、乾燥剂、脱氧剂及不添加任何食品保存剂）与不同温度（4℃及25℃）下储存120天过程中总酚类化合物含量、总异黄酮素含量及异黄酮素组成及其甲醇萃取物抗氧化活性之变化，抗氧化活性之检测项目包括DPPH自由基清除能力、亚铁离子鳌合力、Trolox equivalent antioxidant capacity及还原力。

Based on literature, applications of electrochemical analysis methods, including coulometry, polarography and high performance capillary electrophoresis, in the determination of flavoniods are described to offer reference to the research, development and application of flavonoid compounds.

摘要在查阅文献的基础上，介绍了黄酮含量的电化学测定方法，包括库仑滴定法、极谱法、高效毛细管电泳等，旨在为黄酮类化合物的研究、开发、应用提供参考。

The content of five free-anthraquinones (aloemodin, rhein, emodin, chrysophanol, physcion) in Alc95% active part were simultaneously determined by HPLC method.

其中7，3'-二羟基-5'-甲氧基异黄酮是自然界中罕见的B环为间位二取代的异黄酮类化合物，为新化合物。

Abstract］ Objective: To establish the method of total flavonoids and HPLC fingerprint in Bupleurum scorzonerifolium Willd..

目的：建立春柴胡总黄酮含量分析方法及黄酮类成分的高效液相色谱指纹图谱。

Objective: To establish the method of total flavonoids and HPLC fingerprint in Bupleurum scorzonerfo1iurn Wilid.

目的：建立春柴胡总黄酮含量分析方法及黄酮类成分的高效液相色谱指纹图谱。

Isoflavonoids are a kind of substances in leguminous plants which have biological activity and faintish estrogenic activity. Daidzein is one of the most classes in these substances.

异黄酮类化合物是一种存在于豆科植物中的生物活性物质，具有较弱的雌激素样活性，而大豆黄酮是此类化合物中存在较广、近年来研究也较多的一种。

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 f...

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。

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