查询词典 quercetin

Results Six compounds were isolated from the ethanol extracts of Acrostichum aureurm,and their structures were elucidated as ponasterone A(1),pterosterone(2),kaempferol(3),quercetin(4),4-(3,4-dihydroxyphenyl)-2-butanone(5),and daucosterol(6),respectively.

结果从卤蕨乙醇提取物中分离得到6个化合物，分别鉴定为ponasterone A(1)、pterosterone(2)、山奈酚(3)、槲皮素(4)、4-(3，4-二羟基苯基)-2-丁酮(5)、胡萝卜苷(6)。结论6个化合物均为首次从该植物中分离得到。

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种类不同，已知嘎拉果皮中含有花青素-山越橘苷，而金冠中没有；本实验发现金冠果肉中含有槲皮苷，而嘎拉果肉中没有检测到。

College of Animal Sciences, Zhejiang University, Hangzhou 310029, ChinaAbstract: In vitro chicken embryo hepatocytes were adopted to evaluate the antioxidizing effects of vitamin E and quercetin on polychlorinated biphenyls-induced toxicity.

利用体外培养的鸡胚肝细胞研究抗氧化剂维生素E和槲皮素对多氯联苯（polychlorinated biphenyls， PCB）引起的肝细胞损伤的缓解作用。

Objective Bergenin is the effective ingredient for cough, and maybe Quercetin and Kaempferol are the expectorant ingredient in Ardisia Japonica,.

目的 矮地茶的止咳有效成分为岩白菜素，槲皮素和山奈酚可能为其化痰成分。

The determination on the contents of Quercetin and Kaempferol in Ardisia Japonica by HPLC is to confirm its collaborative effection of cough and expectorant with Bergenin.

用高效液相色谱法测定矮地茶中槲皮素和山奈酚的含量，拟证实其与岩白菜素的止咳化痰的协同作用。

Sixteen compounds were separated from 80% ethanol extract of Plant A, they were:-lariciresinol,-isolariciresinol,-isolariciresinol 9-O-β-D-glucopyranoside, tanegoside B, apiginin, apigenin 7-O-β-D-glucoside, apigenin 7-O-β-neospheroside, quercetin 3-O-β-D-glucopyranoside, 1, 7-dihydroxy-3, 4-dimethoxyxanthone, 3-O- [α-L-rhamnopyranosyl (1-4 ] -β-D-glucopyranoside-(25S)-5β-spirostan-3β-ol , 3β-O-D-glucopyranoside quinovic acid, mangiferin , 3'-p-hydroxybenzoyl-mangiferin, physcion, benzenyl methanol β-D-glucopyranoside and Vanillic acid.

结果： 1。从植物A的80％乙醇提取物中共分离得到16个化合物，分别为：-落叶松脂醇、-异落叶松脂醇、异落叶松脂醇9-O-β-D-吡喃葡萄糖苷、tanegoside B、芹菜素、芹菜素7-O-β-葡萄糖苷、芹菜素7-O-β-新橙皮糖苷、槲皮素3-O-β-D-吡喃葡萄糖苷、1，7-二羟基-3，4-二甲氧基-口山酮、菝葜皂苷元-3-O-[α-L-吡喃鼠李糖基（1-4）]-β-D-吡喃葡萄糖苷、喹诺酸3β-O-D-葡萄糖苷、知母宁、3′-对羟基苯甲酸-知母宁、大黄素甲醚、苯甲醇-β-D-吡喃葡萄糖苷、香草酸。

RESULTS: Sixteen compounds, ursolic acid (1), indole-3-carboxaldehyde (2), indole-3-carboxylic acid (3), p-coumaric acid (4), azelaic acid (5), N-trans-feruloyl tyramine (6), blumenol A (7), 2-hydroxy-3-methylanthraquinone (8), rubiadin l-methyl ether (9), rubiadin (10), quercetin (11), luteolin (12), chrysoeriol 6-C-β-boivinopyranosyl-7-O-β-glucopyranoside (13), alternanthin (14), stigmasta-5, 22-dien-3β-ol (15), and α-spinasterol (16) were obtained from the EtOAc extract of Alternanthera philoxeroides.

结果：得到并鉴定了16个化合物，分别为乌苏酸(1)、吲哚-3-甲醛(2)、吲哚-3-甲酸(3)、对-香豆酸(4)、壬二酸(5)、N-反式阿魏酰基酪胺(6)、布卢姆醇A(7)、2-羟基-3-甲基蒽醌(8)、甲基异茜草素-1-甲醚(9)、甲基异茜草素(10)、槲皮素(11)、木犀草素(12)、柯伊利素-6-C-β-波伊文糖基-7-O-β-吡喃葡萄糖苷(13)、莲子草素(14)、豆甾醇(15)和α-菠甾醇(16)。

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The quercetin and kaempferol were extracted from the sample with 90% of methanol by heating circumfluence for 45 min.

黄酮类化合物槲皮素和山萘酚是莲须中的主要有效成分，对其含量测定具有一定意义[1-2]。

Quercetin,a flavonol with o-dihydroxy-benzene wasdetermined as one of major pigment of 'Concolor' wintersweet petal.

经鉴定，具邻二酚羟基的黄酮醇――槲皮素为蜡梅花瓣主要色素之一，并测定了其动态。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。