儿茶酚

Three major anthocyanins of blood orange were isolated. HPLC-ESIIMS analysis results show that the anthocyanins of blood orange are mainly cyanidin-3-glucoside (35.2%) and cyaniding-3-(6"-malonyl) glucoside (42.9%). Furthermore, cyanidin-3-(3"-malonyl) glucoside, cyanidin 3-(6-dioxalyl) glucoside and cyanidin-3-glucoside adduct: 4-vinylcatechol were identified in blood orange.

HPLC-ESI/MS分析表明，血橙花色苷主要是为矢车菊素-3（3"-丙二酰）葡萄糖苷和矢车菊素-3（6"-二乙二酰）葡萄糖苷（组分1），矢车菊素-3-葡萄糖苷（组分2），矢车菊素-3（6-丙二酰）葡萄糖苷（组分3）及矢车菊素－3-葡萄糖苷加成物4-乙烯基儿茶酚（组分4）。

Catechin is 100 times more potent than vitamin C and 25 times more potent than vitamin E.

儿茶酚的效力是维生素 C 的100倍，是维生素 E 的25倍。

Green tea catechin and theaflavin, which are both present in black tea, have a strong effect on the flu virus.

绿茶儿茶酚，跟红茶里含有的一样，都对流行性病毒有很强的影响。

This study is to explore the relationship between polymorphism of Catechol O-methyltransferase gene and schizophrenia.

本研究旨在探测儿茶酚氧位甲基转移酶基因多态性与精神分裂症的关系，搜寻中国汉族人精神分裂症易患性基因。

The recovery rate of catechol from sample ranged from 94.7% to 102.9%.

在实际样品分析中，儿茶酚的回收率在94.7%~102.9%范围内。

2When excess ascorbic acid is added to the reaction mixture to reduce o-quinone back to catechol...

四乙醇的存在，并不影响多酚氧化酶氧化儿茶酚作用时氧气被完全还原为水的作用。

Any of a group of amines derived from catechol that have important physiological effects as neurotransmitters and hormones and include epinephrine, norepinephrine, and dopamine.

儿茶酚胺一种从苯磷二酚中获得的胺，具有神经传感和荷尔蒙的重要生理功能，包括肾上腺、去甲肾上腺素和多巴胺

Epigallocatechin gallate is the most active and studied of green tea's catechins.

表没食子儿茶素没食子酸酯是绿茶儿茶酚中活性最强，研究最为深入的物质。

These are thought to adhere to a kind of polyphones known as catchiness, preventing them from carrying out their health-making work.

研究者认为它们会附着在一种叫儿茶酚的多酚上，使之无法发挥保健功效。

Specificity studies on the substrate revealed that the HdPO was capable of oxidizing not only the o-diphenol, but also tyrosine. The apparent Km value on tyrosine was about 9.52 mmol/L. As shown in the experiments, HdPO behaved oxidizing activities both on diphenol and monophenol, which implies that the HdPO was probably not only a type of tyrosinase-type PO but also a catechol-type.

底物特异性研究还发现此HdPO不仅对邻苯二酚具有氧化活性，对酪氨酸底物也具有氧化活性，且对酪氨酸的Km值约为9.52mmol/L，说明该酶既具有酪氨酸酶活性，又具有儿茶酚酶活性。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。