查询词典 peroxyl

Among the 5 cultivars detected, Meiguihong contained the highest content of all 7 substances in three fruit parts, while for Naiyou and Manaizi cultivars the lowest. The peroxyl radical scavenging capacity method, with some modification, was used to evaluate the antioxidant capacity of grape extract.

结果表明，玫瑰红葡萄果皮、果肉和种子中7种生物活性物质组分的含量均高于其它品种，而奶油和马奶子果实中7种生物活性物质组分的含量较低或未检出。

The rate constants of the reactions of α-hydroxyl ethyl peroxyl radicalwith quercetin, ruitn, catechin and baicalin were determined through pulse radiolysisstudies to be 〓,〓,〓〓 and 〓, respectively.

用脉冲辐解的方法得到槲皮素、芦丁、儿茶素以及黄芩甙与α-羟乙基过氧自由基的反应速率常数分别为〓；3.4〓；〓和〓。

Spectroscopy ; ion attachment mass spectrometry ; ab initio molecular orbital theory ; density functional theory ; fluoromethyl peroxyl

光谱学；离子附着质谱；分子轨道理论；密度泛涵理论；氟甲基过氧自由基

For flavonoids containing 2,3-doublebond in their C ring, peroxyl radicals mainly add on the double bond, and the adductsmay transfer to the final products through short chain reactions, which results in theincrease of G values of hydrogen peroxide.

根据实验结果我们认为黄酮类化合物与过氧自由基的反应是加成与电子转移的混合反应。

Antioxidant activity of Se-PC was investigated and compared with phycocyanin by using four different free radical scavenging assays, namely, trolox equivalent antioxidant capacity assay, DPPH free radical scavenging assay, superoxide anion scavenging assay and assay for erythrocyte hemolysis mediated by peroxyl free radicals .

通过含硒藻蓝蛋白与藻蓝蛋白对4种不同的自由基清除能力的比较，即总抗氧化能力、清除DPPH自由基、过氧化物阴离子和引发红细胞溶血的过氧化氢自由基能力测定，从而对含硒藻蓝蛋白的抗氧化活性进行评价。

Part Ⅰ: The changing trend of G values of hydrogen peroxide in the reactionsbetween flavonoids and peroxyl radicals is an important parameter in elucidating thereaction mechanisms,γ-Irradiated aqueous solutions (saturated with 〓) andaerated ethanol solutions of several typical flavonoids were eluted through aluminacolumns and the G values of hydrogen peroxide generated in the solutions weremeasured.

第一部分：黄酮类化合物与过氧自由基反应的过程中生成的过氧化氢值的变化是解释机理的主要依据之一。

Carnosic acid, an antioxidant polyphenol derived from Sage and Rosemary, is a lipophilic antioxidant that scavenges singlet oxygen, hydroxyl radicals, and lipid peroxyl radicals, thus prevents lipid peroxidation and the disruption of biological membranes.

鼠尾草酸则是存在於鼠尾草和迷迭香中的多酚类化合物，在过去实验指出鼠尾草酸也是一种抗氧化剂。

The antioxidative action may involve trapping the initiating radicals generated by AAPH in the bulk phase, inhibiting the propagating lipid peroxyl radicals on the surface of micelles and regeneratingα-tocopherol by reducing theα-tocopheroxyl radical.

在均相溶液中，这些化合物单独使用时都是很好的抗氧化剂，但是只有杨梅树素产生了抑制期，其他化合物均降低了引发速率。

The antioxidative action may involve trapping the initiating radicals generated by AAPH in the bulk water phase, trapping the initiating radicals generated by DBHN in the surface of the micelles, inhibiting the propagating lipid peroxyl radicals on the surface of micelles and regenerating α-tocopherol by reducing the α-tocopheroxyl radical.

茶多酚的抗氧化机理可能涉及到在水相中捕获链引发自由基R00·和在胶束表面捕获链引发自由基t-BuO以及在胶束表面捕获链增长自由基LOO和在胶束表面与α-生育酚自由基反应从而再生α-生育酚。

The order is TRs〓＞extraction of black tea＞TB＞TRs〓＞TFs＞ECG＞EGC＞TP＞EGC＞EC. Comparing with catechins, peroxyl radical scavenging activities of their oxidative products were stronger.

儿茶素及其氧化产物对羟自由基有明显的清除作用，其清除·OH作用强弱顺序依次为TR〓＞红茶水提物＞TB＞TR〓＞TFs＞ECG＞EGC＞TP＞EGC＞EC。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。