类黄酮

The proposed method surpassed other chromatographic alternatives in terms of limit of detection at least 10~3 folds with good reproducebility. Chapter 4 A capillary zone electrophoresis with indirect LIF detection method is developed for the simultaneous determination of six coumarin compounds (esculin, esculetin, isofraxidin, genistein, naringin and sophoricoside).

第四章建立了一种毛细管区带电泳—间接激光诱导荧光检测法同时测定6种黄酮类化合物(秦皮甲素、秦皮乙素、异秦皮定、染料木素、柚皮苷和槐角苷)的新方法，扩大了LIF检测的应用范围。

BACKGROUND: Cristata L flavonoid is a kind of plant estrin, which possesses multiple physiological function, has no toxicity and adverse effect, and is effective in treating and preventing osteoporosis.

背景：鸡冠花黄酮类化合物是一种植物性雌激素，具有多种生理功能，且无毒副作用，对骨质疏松的治疗和预防都具有良好干预效果。

This paper summarizes research adcance of flavonoids in medical value and methods of exaction and separation from different kinds of plants.

对黄酮类化合物的药用价值、提取工艺、分离方法等方面进行综述。

The extracting technology of flavone by microwave from bamboo leaf was studied in the paper.

对竹叶黄酮类物质的微波提取工艺进行了研究。

The flavone may be the main material of antioxidant activity.

黄酮类化合物可能是其抗氧化作用的主要物质基础。

It is an ideal way to extract the flavone of onion.

结论该方法采用全物理过程，无任何化学变化及污染，是提取洋葱黄酮类物质的有效途径。

Chitin, polysaccharide, vitamin and flavonoid were main anti-mutation functional factors of white wax scale.

甲壳素、多糖、维生素和黄酮类物质应为抗突变作用的主要功效成分。

The experimental results showed that pinocembrin, chrysin and galangin were the main flavonoids in Chinese propolis.

实验结果表明：乔松素、白杨素和高良姜素是中国蜂胶的主要黄酮类化合物；我国不同产地的蜂胶主要化学成分基本相同。

Eight kinds of flowers were selected including Lily, Honeysuckle, Globe amaranth, Tribute Chrysanthemum, tea plant flower, Rose, Hibiscus sabdariffa and Saffron.

选用八种常见饮用花卉，如百合花、金银花、千日红、贡菊、茶花、玫瑰花、玫瑰茄、藏红花，分别采用电感耦合等离子体发射光谱法和三氯化铝比色法检测其微量元素和黄酮类化合物的舍量。

In fact, the flavonoids occur in nature as their glycoside derivatives in which one or more sugar groups are attached to the phenolic groups

事实上，黄酮类化合物性质上属糖苷衍生物，它们出现时有一或多组糖与石碳酸组结合。

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％。