槲

Crude extracts were extracted from Sophra japonica L. with 75% alcohol. Rutin was obtained from the crude extracts by alkine extraction and acid precipitation.

用75%乙醇提取了槐花米中具有抗氧化活性的粗提物，然后通过碱提酸沉法从该粗提物中提取了芦丁，并制备了芦丁的水解产物槲皮素。

"Bur oak:an oak tree of eastern North america, having pinnately lobed leaves, acorns enclosed within a deep fringed cup, and hard, durable wood."

大果栎：产于北美东部的一种栎树，具羽状圆形叶片和被深穗杯包裹的槲果和坚硬耐久的木质。

In 37 ℃, PH = 6.5 conditions, the experiment discussed caffeic acid and quercetin alone and in different mixing ratio of Anoplophora glabripennis in the polyphenol oxidase in vivo, the impact of the activity.

在37℃、PH=6.5的环境下，实验讨论咖啡酸与槲皮素单独作用以及以不同比例混合作用于光肩星天牛体内多酚氧化酶时，对酶活性影响。

Conclusion; Myricetin and quercetin are inhibitors of PI3K, The inhibitory effects against p110β PI3K of myricetin and quercetin are dose-dependent.

杨梅素和槲皮素是PI3K的抑制剂，杨梅素和槲皮素对PI3K p110β催化亚基的抑制作用与浓度成正比关系。

Vitamin E and quercetin are both effective anti-oxidant, but it is still unclear whether VE and quercetin can protect nerval system of mice through crossing placenta barrier and blood-brain barrier.

维生素E和槲皮素都是有效的抗氧化剂，但VE和槲皮素是否可以通过胎盘屏障和血脑屏障对子代小鼠的神经系统产生保护作用，目前还不清楚。

Assaying results indicate that in that eight parts of Acanthopanax senticosus content ofquercetin is highest in leaf,0.03818%, content of quercetin rhamnoside is highest in flower,4.43115%, content of hyperin is highest in flower,2.41605%, content of syringoside is highest inskin of shoot,1.18959%, content of eleutheroside E is highest in root,

含量测定结果表明：在刺五加花蕾、根、叶、果、茎干、新枝、茎韧皮部、茎皮这八个部位中，槲皮素叶中含量最高，为0.03818％；槲皮素鼠李糖苷花蕾中含量最高，为4.43115％；金丝桃苷花蕾中含量最高，为2.41605％；紫丁香苷茎皮中含量最高，为1.18959％；刺五加苷E根中含量最高，为0.18802％。

However, the superheating effect may also result in the degradation of thermolabile compounds. Both the data of calculated activation energy and the results of experiments indicated that quercetin glycosides degraded under the high temperature caused by microwave irradiation.

首次从理论和实验两方面研究了微波加热对以槲皮素为甙元的黄酮甙的稳定性的影响，计算得到的活化能数据和实验结果均显示微波加热产生的高温可导致槲皮素糖甙发生分解。

Seven chemical constituents were identified on the basis of chemical methods and spectral evidences. ResultsFrom this plant, seven active compounds were isolated. They were determined as farrerol, myricetin ,quercetin, taxifolin, umbelliferone, hyperin and juniper camphor.

结果从满山红中分离得到了7种活性化合物，分别为杜鹃素，杨梅素，槲皮素，二氢槲皮素，伞形花内酯，金丝桃苷，杜松脑。

objective in order to exploit the natural resources of chinese herbs,the inhibitive effects of the compositions of28chinese herbs on the growth of8common bacteria in oral cavity were determined.methods sen-sitive test of these bacteria were carried out by mtt method.at the same time,chessboard dilution method was used for combined sensitive test.results the compositions of28chinese herbs can inhibit the growth of5bacteria in dif-ferent levels,but the effects on other3bacteria are not obvious.quercetin and usnic acid have better effects on5bacteria than other26herbs compositions,with mic0.03125～0.125mg/ml and0.0156～0.0625mg/ml.conclu-sion quercetin and usnic acid can inhibit the5bacteria growth more effectively than other26herbs compositions.

目的 测试28种中药有效成分抑制8种口腔常见致病菌的作用，为抗菌中药有效成分用于口腔感染性疾病的防治做一些探讨。方法选择28种有抗菌作用的中药的有效成分，采用噻唑蓝法对8种口腔常见致病菌作药物敏感实验，同时采用液体棋盘稀释法进行联合药敏实验。结果 28种中药有效成分对3种牙周细菌抑制作用不明显，对另5种口腔常见细菌有一定的抑制作用，其中松萝酸和槲皮素有较强的抑菌作用，mic值分别在0.0156～0.0625mg/ml和0.3125～0.125mg/ml之间。结论所选28种中药成份中，松萝酸和槲皮素具有较强的抑菌作用。

It is not known whether flavonoids can be absorbed in amounts sufficient to exert an antiviral effect in humans, and therefore their possible role in the treatment of childhood exanthems remains unknown.

约黄酮类化合物抗病毒行动已观察到的试管实验。41 42 43 44 45 槲皮素，黄酮类化合物之一的，所表现出特别强烈的试管抗病毒特性； 46 47 48但是，一项研究没有找到槲皮素将有利于小鼠的病毒感染。49这不知是否黄酮类化合物可吸收的数额不足以在人体发挥抗病毒效果，因此，他们在治疗儿童exanthems可能发挥的作用仍然不得而知。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。