黄酮

基本解释 (translations)

flavone  ·  anthoxanthin

与黄酮相关的网络例句 [注：此内容来源于网络，仅供参考]

Result:As compared with the model group, the effect of small dose group and middle dose group of osteopractic total flavone on TBV% of shankbone increased significantly; the effect of small dose group and middle dose group of osteopractic total flavone on TRS% of shankbone reduced significantly and TFS%, AFS%, MAR, BFR of shankbone reduced obviously; the effect of middle dose group of osteopractic total flavone on OSW and mAR reduced obviously, the effect of small dose group of osteopractic total flavone on them had the tendency of reducing, but there was no statistical significance.

结果 ：对胫骨骨小梁体积百分比的影响，与模型组比较，骨碎补总黄酮小剂量组和中剂量组的TBV %明显增高；对胫骨骨小梁吸收表面百分比的影响，与模型组比较，骨碎补总黄酮小剂量组、中剂量组的TRS %显著降低；对胫骨骨小梁形成表面百分比，活性生成表面百分比，骨小梁矿化率和骨小梁骨生成率的影响，骨碎补总黄酮小剂量组、中剂量组的TFS %，AFS %，MAR ，BFR较模型组皆明显降低；对胫骨类骨质平均宽度和骨皮质矿化率的影响，骨碎补总黄酮中剂量组的OSW和mAR与模型组比较，明显降低；骨碎补总黄酮小剂量组与之相比，有下降的趋势，但无统计学意义。

By studying the factors that affect the purities of products and recoveries of isoflavones, we got the optimum conditions for desorption: 70℃, eluting solvent sequence: water 3.0 BV, 75% ethanol 5.0 BV, flow-rate 2.5 mL·min~(-1). Under these conditions, the content of isoflavones in the product was 56.0% with the recovery of 89.3%. The content of isoflavones in the product was ten times larger than in the initial material.

异黄酮的解吸，以异黄酮产品的含量及异黄酮回收率为指标，对解吸溶剂浓度、温度等因素进行考察，确定采用水、体积分数75％乙醇溶液在70℃下依次洗脱，收集醇洗脱液可得到大豆异黄酮含量达56.0％的产品，含量比原料提高了十几倍，异黄酮回收率也较高，达到了89.3％。

In this thesis,with bioassay results in vitro and total contents of flavones as evaluate indexes, the optimal extract method and extract procedure of Bidens parviflora Willd.were firstly studied.

在黄酮类化合物中，又以黄酮醇和黄酮的活性最好，查尔酮、二氢黄酮、橙酮的活性次之，黄酮苷类化合物的活性较弱。

A new flavanone from Dryopteris sublaeta;2. Isolation and Structure Identification of a New Flavanone from Dryopteris sublaeta;3. RESULTS Five compounds are isolated from the ether fraction of 70% acetone-extracts,and their structures were identified as(2S)5,7-dihydroxy-6,8-dimethyl flavanone desmethoxymatt.

结果浅裂鳞毛蕨地上部分用体积分数为70%丙酮提取液乙醚萃取部位分离得到了5个化合物，分别鉴定为：(2S)5，7-二羟基-6，8-二甲基二氢黄酮，(2S)5，7-二羟基-6，8-二甲基-4′-甲氧基二氢黄酮，(2S)5，7，2′-三羟基-6，8-二甲基-二氢黄酮，(2S)5，7，4′-三羟基-3′-甲氧基-6，8-二甲基二氢黄酮，(2S)5-羟基-4′-甲氧基-6，8-二甲基二氢黄酮-7-O--βD-葡萄糖苷。

Leaves. Result: Extraction temperature had effect on total flavonoids yield, and ethanol concentration had more obvious effect than extraction temperature. The more natural storage time, the less total flavonoids content, and the average descent rate was 24.74% per year. The flavonoids content from Lithocarpus polystachyus Rehd. gathered between August and October was the highest. The total flavonoids content was higher in the new leaves of Lithocarpus polystachyus Rehd.

结果：乙醇体积分数对总黄酮提取量有显著影响，提取温度对总黄酮提取量有影响；多穗柯自然存放时间越长，总黄酮含量越低，平均每年下降24.74%；不同季节采摘的多穗柯其总黄酮含量以8~10月最高；经对怀化多穗柯嫩叶和老叶中总黄酮的提取测定表明，多穗柯中嫩叶总黄酮含量最高，二年生最低。

These compounds were identified as follows:chrysophanol (FP-1),physcion(FP-2),eriosematin(FP-3),scoparone(FP-4),lupeol(FP-5),betulinic acid(FP-6),3\',4\'-Dihydroxy-trans-cinamic acid octacosyl ester(FP-7),β-sitosterol (FP-8),flemiphilippinone A(FP-9),monopalmitin(FP-10),emodin(FP-11),islandicin (FP-12),salicylic acid(FP-13),p-methoxyphenylpropionic acid(FP-14),trideca-1, 3-diene(FP-15),lupinifolin(FP-16),flemichin D(FP-17),flemiphilippinin A(FP-18), auriculasin(FP-19),erythrinin B(FP-20),6-C-prenylluteolin(FP-21), 8-(1,1-dimethylallyl) genistein(FP-22),flemiphilippinin E(FP-23),flemiphilippinin F (FP-24),5,7,3\',4\'-tetrahydroxy-6,8-diprenylisoflavone(FP-25),flemiphilippinin D (FP-26),dorsmaninsⅠ(FP-27),osajin(FP-28),6,8-diprenyleriodictyol(FP-29), lupinalbin A(FP-30),genistein(FP-31),3\'-O-methylorobol(FP-32),orobol(FP-33), 5,7,2\',3\',4\'-pentahrdroxyflavone(FP-34),the mixture of biochanin A and prunetin (FP-35 and 36),genistin(FP-37),sophororicoside(FP-38),3\'-O-methylorobol-7-glucoside(FP-39),the mixture of sissotrin and prunetin 4\'-O-β-D-glucoside(FP-40 and 41),adenosine(FP-42) and luteoloside(FP-43,mixture).

这些化合物分别为大黄酚(FP-1)、大黄素甲醚(FP-2)、eriosematin(FP-3)、滨蒿内酯(FP-4)、羽扇豆醇(FP-5)、白桦酸(FP-6)、咖啡酸二十八烷酯(FP-7)、β-谷甾醇(FP-8)、蔓性千斤拔酮A(FP-9)、单棕榈酸甘油酯(FP-10)、大黄素(FP-11)、islandicin(FP-12)、水杨酸(FP-13)、对甲氧基苯丙酸(FP-14)、十三烷-1，4-二烯烃(FP-15)、lupinifolin(FP-16)、千斤拔素D(FP-17)、蔓性千斤拔素A(FP-18)、auriculasin(FP-19)、erythrinin B(FP-20)、6-C-异戊烯基木犀草素(FP-21)、8-(1，1-二甲烯丙基)-染料木黄酮(FP-22)、蔓性千斤拔素E(FP-23)、蔓性千斤拔素F(FP-24)、5，7，3′，4′-四羟基-6，8-双异戊烯基异黄酮(FP-25)、蔓性千斤拔素D(FP-26)、dorsmaninsⅠ(FP-27)、osajin(FP-28)、6，8-双异戊烯基圣草素(FP-29)、lupinalbin A(FP-30)、染料木黄酮(FP-31)、3\'-O-甲基香豌豆苷元(FP-32)、奥洛醇(FP-33)、5，7，2′，3′，4′-五羟基黄酮(FP-34)、鹰嘴豆素甲和樱黄素的混合物(FP-35和FP-36)、染料木苷(FP-37)、槐属苷(FP-38)、7-葡萄糖基-3\'-O-甲基香豌豆苷(FP-39)、印度黄檀苷和樱黄素4′-O-β-D-葡萄糖苷的混合物(FP-40和FP-41)、腺嘌呤核苷(FP-42)和木犀草苷(FP-43，混合物)。

In addition, a pre-column derivatization HPLC method was applied to the determination of Astragaloside Ⅳ; the flavonoids was determined by full-range HPLC scanning; a colorimetric method was developed for the determination of flavonoids and saponins. Hierarchical cluster analysis was performed on three constituents of different Radix Astragali species, and its result was compared with those of traditional phytoecological identification and the pharmacological quality assessment.

本研究以比色法测定了黄芪中总皂苷的含量，以柱前衍生化高效液相色谱法测定了黄芪中黄芪甲苷的含量；以比色法测定了黄芪中总黄酮成分的含量，以反相高效液相色谱法测定了黄芪中毛蕊异黄酮和毛蕊异黄酮苷的含量；以黄芪中的黄芪甲苷、毛蕊异黄酮和毛蕊异黄酮苷为主要特征对不同品种的黄芪进行了系统聚类分析，并将聚类结果与传统生药学鉴定和药理质量评价结果进行了比较。

Their structures were characterized by IR, 1H NMR, of which 4-chloro- 2-methyl-7-(2-bromoethoxy) isoflavone, 2, 4\'-dimethyl-7-(2-bromo-ethoxy)isoflavone and 2-methyl-7-(2-bromoethoxy) isoflavone are rarely reported so far.4\'-chloro-2-methyl-7-(3-bromopropoxy)isoflavone, 2, 4\'-dimethyl-7-(3-bromo- propoxy) isoflavone, 2-methyl-7-(3-bromopropoxy) isoflavone, 4\'-methoxy-2-methyl-7-(3-bromopropoxy) isoflavone and 4\'-hydroxy-2-methyl-7-(3-bromopropoxy) isoflavone were gained by reacting 7-hydroxy-2-methyl isoflavone derivatives with 1, 3-dibromo- propane, respectively.

第三章(来源：73ABC论文网www.abclunwen.com)在丙酮溶液中以K_2CO_3为碱，使溴乙氧基异黄酮和溴丙氧基异黄酮与咪唑偶合，以较高的产率合成出10种目标化合物：2-甲基-4′-氯-7-2-(1-咪唑基乙氧基异黄酮、2，4′-二甲基-7-2-(1-咪唑基乙氧基异黄酮、2-甲基-7-2-(1-咪唑基乙氧基异黄酮、2-甲基-4′-甲氧基-7-2-(1-咪唑基乙氧基异黄酮、2-甲基-4′-羟基-7-2-(1-咪唑基乙氧基异黄酮、2-甲基-4′-氯-7-3-(1-咪唑基丙氧基异黄酮、2，4′-二甲基-7-3-(1-咪唑基丙氧基异黄酮、2-甲基-7-3-(1-咪唑基丙氧基异黄酮、2-甲基-4′-甲氧基-7-3-(1-咪唑基丙氧基异黄酮、2-甲基-4′-羟基-7-3-(1-咪唑基丙氧基异黄酮，经IR、~1H NMR、~(13)C NMR、元素分析等对其结构进行了表征，10种目标产物均未见文(来源：ABC论文cccccc网www.abclunwen.com)献报道。

We got a conclusion that only biflavonoids bearing flavan moiety existed in Daphne gemus, that biflavanones and chamaechromonoids existed in Stellera genus, and that biflavanones and biflavonoids bearing flavan moiety existed Wikstroemia species. The opinion that biflavanones only existed in Stellera genus was corrected and they were also found in Wikstroemia genus.

通过总结发现，在瑞香属的植物中仅存在含有黄烷单元的双黄酮类化合物；狼毒属植物中存在双二氢黄酮类，狼毒色原酮类以及少数含有黄烷单元的双黄酮，而且目前发现狼毒色原酮类仅存在于该属植物中；荛花属植物中存在含有黄烷单元的双黄酮类和双二氢黄酮类。

Antioxidative activity of flavonoids from Lespedeza bicolor were investigated by examining the scavenging effects on hydroxyl radicals and superoxide anion O2(superscript - and the inhibitions on auto-oxidation of lard, rape seed oil, and linoleic acid, The results showed that LBF had significant scavenging functions to free radical and superoxide anion, and the scavenging effect increased with the increase of the content of LBF; LEF can remarkably inhibit auto-oxidation of lard, rape seed oil, and linoleic acid, indicating its potential as a natural antioxidant.

通过二色胡枝子黄酮(Lespedeza bicolor flavonoids， LBF)清除羟自由基、超氧阴离子的效果及抑制猪油、菜油、和亚油酸的自氧化来研究二色胡枝子黄酮的抗氧化活性。其研究结果表明，二色胡枝子黄酮对清除自由基有显著性作用，且清除率随黄酮浓度的增加而增大；能够极显著地抑制猪油、菜油、亚油酸的自氧化(P.01)，抑制作用随浓度的增大而增强。作为天然的抗氧化剂，二色胡枝子黄酮具有一定的开发利用价值。

与黄酮相关的网络解释 [注：此内容来源于网络，仅供参考]

flavone：黄酮类

其中三种如:花青素类(anthocyanins)、黄烷酮类(flavanone)、黄酮类(flavone)则可明显减少心血管疾病的死亡率. 美国心脏病学会建议各个不同年龄层妇女应多吃苹果,因苹果含的黄酮醇类(flavonol)具有强大抗氧化功能、抗癌、并且促进血液循环、抑制血压上升、保护血管使血管强壮,

flavone：黄碱素/黄酮

flavokinase /黄素激酶/核黄素激酶/ | flavone /黄碱素/黄酮/ | flavonoid /黄酮类/类黄酮/

flavone glycosides：黄酮苷

在欧洲,EGb761 属于银杏叶的标准提取物,被广泛引用于外周缺血性疾病和老年性痴呆,其中的黄酮苷(flavone glycosides)成分占24%,GBE50是我国自主开发的一种类似EGb761的一种新型银杏叶提取物,其黄酮苷含量与EGb761相同,但总黄酮成分可高达近50%.

Genistein：染料木黄酮

大豆黄酮是多酚类化合物, 其组成、存在形式主要有3 种, 染料木黄酮( Genistein) 、黄豆苷原( Glycitein) 和大豆黄素( Daidzein) . 大豆黄酮是大豆生长过程中形成的一类次生代谢产物. 大豆黄酮和染料木素合称为大豆异黄酮( Soybean isoflavones) .

flavonoid glycoside：黄酮苷

黄酮类 flavonoid | 黄酮苷 flavonoid glycoside | 黄酮 flavone

flavonoid glycoside：黄酮类 flavonoid 黄酮苷

博恩特雷格反应 Borntrager reaction | 黄酮类 flavonoid 黄酮苷 flavonoid glycoside | 黄酮 flavone

Injection of Total flavones of Marchantia convoluta：拳卷地钱总黄酮注射液

拳卷地钱总黄酮注射液:Injection of Total flavones of Marchantia convoluta | 总黄酮:Flavones | 黄酮苷:flavones

Myricetin：杨梅黄酮

黄酮醇与黄酮几乎在所有植物中均可找到,黄酮醇中最多见的是栎皮酮(Quercetin)、杨梅黄酮(Myricetin)、堪非醇(Kaempferol)三种,黄酮中最多见的是芹菜配基(Apigenin)和毛地黄黄酮(Luteolin)两种.

flavones：黄酮苷

总黄酮:Flavones | 黄酮苷:flavones | 黄酮:flavones

Flavonoid glycosides：黄酮苷

它们分子中有一个酮式羰基,第一位上的氧原子具碱性,能与强酸形成 钅羊 盐,其羟基衍生物多具黄色,故又称黄碱素或黄酮. 由黄酮类化合物与糖结合的苷叫做黄酮苷 (flavonoid glycosides) . 目前黄酮类化 ...