茶素

The formulas for these phenolic compounds are Epigallocatechin gallate is the main flavanol in dried green tea.

这些酚类化合物的分子式为：表儿茶素酸酯是干绿茶中的主要黄烷醇。语文课本三十二册。

To provide theoretic base for the utilization of heliotrope new shoots of tea trees,biochemical properties of new shoots including the contents of polyphenal,amino acid,flavone and the components of catechin were studied.

为给茶树红紫色芽叶开发利用提供依据，对其部分生化特性，如茶多酚、氨基酸、黄酮类等的含量和儿茶素的组成等进行了研究。

The heliotrope new shoots contain more polyphenal,catechin,flanone and more L-EGCG which is healthful to human beings than the pure green new shoots.

安化群体品种茶树上的红紫色芽叶较纯绿色芽叶含有较多的茶多酚、儿茶素和黄酮类化合物，保健性强的L-EGCG含量亦偏高。

Results IC50 that catechin eliminated O(superscript - subscript 2) and OH was 6.16, 0.59 g/mL respectively, and the eliminating ability of catechin was much stronger than that of the extract from liquorice, rosemary, grape pip, giant knotweed and ginkgo leaf.

结果：儿茶素清除O(上标-下标 2)与OH的IC50分别为6.16，0.59μg/mL，明显优于甘草提取物、迷迭香提取物、葡萄籽提取物、虎杖提取物及银杏叶提取物。

This thesis deals with the investigation on the chemical constituents of Dioscorea Opposite Thunb and studys the interactions between 5,7-dihydroxy-4′-methoxy flavanone,-epicatechin and bovine serum albumin using fluorescence, electrochemical method ,UV absorption and NMR spectroscopy. The main contents are as follows: Chapter 1: Study of the chemical constituents in Dioscorea opposita Thunb 1. Two methods were used to methylate the fatty acid in Dioscorea opposita Thunb.

本文在前人的工作基础上对我省道地药材-怀山药饮片中的化学成分进行了系统的研究；同时利用核磁共振方法、电化学分析法、荧光光谱法、紫外光谱法分别研究了两种天然酚性化合物5，7-二羟基-4′-甲氧基二氢黄酮，(--表儿茶素与牛血清白蛋白之间的相互作用，主要内容如下：一。

Objective To evaluate the effects of-epigallocatechin-3-gallate on the growth of human hair follicles and proliferation of cultured human dermal papilla cells in vitro.

目的 研究表没食子儿茶素没食子酸酯对体外培养的人毛囊生长和毛乳头细胞增殖的影响。

Activities of polygalacturonase and pectate lyase of Fusarium oxysporum f.

儿茶素可明显抑制初步纯化的PG和PL活性以及它们对棉苗组织的浸软作用。

T he Pharmacodynamics and Pharmacology of Tea catechins on Nephritis were studied in animal and cell systems.

本论文用动物模型和细胞模型研究了茶儿茶素对肾病的药效与药理。

The stronger antioxidant capacity of tea polyphenol is due to the presence of phenolic compounds, such as catechins in its composition.

茶多酚之所以具有很高的抗氧化活性是由于酚类化合物的存在，如在它的结构中存在儿茶素。

With the increase of microwave extraction time,extraction yields of rutin,epicatechin,quercitrin and quercetin were firstly increased and then decreased.

在提取压力超过400kPa时，芦丁开始失去一个芸香糖转化为槲皮素；随着微波照射时间的延长，芦丁、表儿茶素和槲皮素提取产率先增加，而后下降。

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％。