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quercetin n.【化學】櫟精;櫟皮黃素。 quercetic adj...

quercine

The result of counting lr primordium indicates that quercetin does not influence primordium formation , but inhibits its elongation . this is essentially different to npa , which inhibits both primordium formation and elongation . also , quercetin increases hypocotyls length , which is linked toward elevated auxin transport level 原基統計結果表明, q對側根原基發生的影響和npa有著根本的不同: q不影響側根原基的發生,而只影響原基的延伸,使側根發生比正常延遲一步。

Propofol and paracetamol are compounds that have phenol hydroxyl and propranolol and propafenone are those that have aliphatic ones . among the four compounds , propofol is the specific substrate of ugt1a9 and can be served as the comparison reference of enzymatic activity . based on the study of four compound , four kinds of isoflavone compounds , i . e . , quercetin , kaempferol , isorhamnetin and 在上述四種化合物研究的基礎上,考用類黃酮化合物對叭xs有各種影響,并且具有各種酚羥基結構,本實驗選擇了四種類黃酮化合物即們皮素、山費酚、異鼠辛素和蘆丁作為底物,觀察ix ; 1 ’ iag對它們代謝的作用情況,試圖了解ijgtiag在這些化合物的葡醛酸代謝過程中所起的作用。

Pharmacological evidences show that quercetin - inducing hypergravitropism is structural specific activity , and the second massager such as ca2 + and camp take parts in this process , and polar auxin transport is indispensable . a conclusion can be made from all these results that quercetin , one kind of flavonoid , does not act as pat inhibitor but regulates auxin transport at the level of signal transduction in arabidopsis 藥物學實驗結果表明, q誘導超向地性來自于末端特異性結構,同時細胞內的ca ~ ( 2 + )和camp等二級信使也參與了這一過程,并且生長素極性運輸也是發生超向地性所不可缺少的條件。

Green tea contains a number of flavonols with the basic structure specific flavonols found in tea include myricetin ( hydroxyls at carbon 3 ' , 4 ' , and 5 ' ) , quercetin ( hydroxyls at positions 3 ' and 4 ' ) , and kaempferol ( hydroxyl at position 4 ' ) , and their glycosides 綠茶含有一些黃酮醇,其基本化學結構為:茶中特有的黃酮醇有楊梅黃酮( 3 ' 、 4 ' 、 5 '碳位上羥基化) 、豕草花粉苷( 3 '和4 '碳位上羥基化) ,莰非醇( 4 '碳位上羥基化) ,以及它們的糖苷物。

There were different kinds of apple polyphenolics with different varieties of gala and golden . as it is known , the anthocyanidin is only in gala skin but not in golden skin . it is found in this study that there has quercetin in golden pulp but not be detected in gala pulp 嘎拉和金冠中多酚化合物種類不同,已知嘎拉果皮中含有花青素-山越橘苷,而金冠中沒有;本實驗發現金冠果肉中含有槲皮苷,而嘎拉果肉中沒有檢測到。

On the one hand , quercetin promotes hypocqtyls phototropic growth , on the other hand , it promotes gravitropism of root tips . when the seedlings are placed tilted at 80 , quercetin induces root tips getting into medium , while on control case , it grows along the surface 一方面q促進了下胚軸的向光生長,另一方面,促進了根尖的向地性,在80培養時, q誘導根尖鉆入培養基中。

Several common extractioin methods for quercetin from sophora japonica buds are introduced . and its effects on central nervous system are summarized in the paper , including analgetic result , anti - despondent result and effect on memory 介紹了槐米中槲皮素的幾種常規提取方法,并概括了槲皮素作用于中樞神經系統方面的功效,包括其鎮痛作用、抗抑郁作用及對記憶的影響。

Like vitamin c , quercetin has strong antioxidant properties ? but it is also believed to prevent the release of histamine , thus potentially helping to stop inflammation and swelling of airways and the production of excess mucus 和維生素c一樣,槲皮素具有較強的抗氧化性能,但它也被認為可以阻止組胺釋放,從而可能有助于阻止氣道的發炎、腫脹及產生過多粘液。

In our experiments , however , the inhibition of flavonoid on root system development is related to high nitrate , and quercetin , one kind of flavonoid , does not inhibit but promotes the gravitropism instead 但我們在實驗中發現,類黃酮對根系發生的抑制是與高n相聯系的。對于向地性,類黃酮中的一種? ? quercetin不但不抑制,反而促進向地性? ?誘導超向地性。

Consistent amounts of resveratrol , quercetin and ellagic acid will help improve cardiovascular health and may even confirm what the french have known all along ? that drinking red wine is good for you 一定總量的白藜蘆醇,橡黃素和糅花酸可以改善心腦血管疾病,還可以讓法國人更加堅信他們一直相信的事? ?喝紅葡萄酒有益健康。

Through spectrum analysis , its molecular formula is determined as c2oh32o3 . the further structural identification of this compound is in progress . meanwhile , quercetin has been isolated and its content determined by hplc 同時證明了馬尾松松葉中含有槲皮素,并利用高效液相色譜法對其進行了含量測定,結果為0 . 0013 。

Though not definitively proven to work , she often prescribes coenzyme q10 , vitamins e and b6 , quercetin and garlic because laboratory studies have suggested they may be beneficial 她也經常開出服用輔酶q10 ,維生素e和b6 、槲皮苷和大蒜的處方,盡管不能確定它們是否有效,但實驗室研究已表明它們對患者是有益的。

Method for the determination of rutin , myricetin , quercetin , kaempferol , apigenin , pinocembrin , chrysin , galangin contents in propolis - lc - ms - ms detection method and lc - uv detection method 蜂膠中蘆丁楊梅酮槲皮素莰菲醇芹菜素松屬素苛因高良姜素含量的測定方法液相色譜-串聯質譜檢測法和液相色譜-紫外檢測法

The result shows that the content of quercetin in pinus massoniana lamb , is 0 . 0013 % . quantitative analysis of the total flavones in pinus massoniana lamb , was conducted by means of ultraviolet spectrophotometry 對馬尾松松葉中總黃酮進行紫外分光光度法定量分析,結果表明松葉中含總黃酮為0 . 0885 。

Conclusion the formation of quercetin - phosphatidylcholine complex was greatly influenced by the solvent , concentration of reactant and reactant ratio , the new synthesized compound being gotten 槲皮素卵磷脂復合物的形成受溶劑、反應物的濃度和反應物投料比的影響較大,形成的是一種新的化合物。

[ c ] iaa is used to measure pat ability in arabidopsis stem under the treatment of quercetin , which promotes auxin transport at the concentration of 25 u m as a result 測量擬南芥下胚軸長度結果表明, q促進了下胚軸的延伸,這一表型與生長素極性運輸增強相聯系。

All of these phenotypes indicate that pat is promoted but not inhibited under the treatment of quercetin . at the same time , we find quercetin enhances tropism : inducing hypergravitropism 在向地性方面,我們發現q能夠增強擬南芥的向地性? ?誘導超向地性。

At present , many researches regard rutin quercetin as criterion calibre , then carry out content determination of flavonoid in the plant 目前多以蘆丁、槲皮素為標準品,進行植物中黃酮含量的測定。

Methods for chemical analysis of aluminium alloys - part 16 : determination of zirconium content by quercetin spectrophotometric method 鋁合金化學分析方法第16部分:槲皮素光度法測定溶解鋯含量