- 更多网络例句与儿茶酸相关的网络例句 [注：此内容来源于网络，仅供参考]
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A crystalline substance, C15H14O6, derived from catechu and used in tanning and dyeing.
儿茶酸一种晶体物质，c15h14o6，来源于儿茶，用于制革和染色
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Effects of Tea Catechins, Epigallocatechin, Gallocatechin, and Gallocatechin Gallate, on Bone Metabolism
茶中的儿茶酚：表没食子儿茶素，没食子儿茶酸和没食子儿茶酸没食子酸盐对骨代谢的作用。
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Results Eleven compounds were isolated and identified as:quercetin(1),kaempferol(2),quercitrin(3),protocatechuic acid(4),gallic acid(5),protocatechuic acid ethyl ester(6),ethyl gallate(7),vanillic acid(8),1,5,7-trihydroxyl-3methylan...
结果得到11个化合物，分别鉴定为：槲皮素(1)、山柰酚(2)、槲皮苷(3)、原儿茶酸(4)、没食子酸(5)、原儿茶酸乙酯(6)、没食子酸乙酯(7)、香草酸(8)、1，5，7-三羟基-3-甲基蒽醌(9)、琥珀酸(10)、5-羟甲基糠醛(11)。结论化合物6、7、9、11为首次从该属植物中分离得到。
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To further study the chemical constitutes of lipophilic active parts, we prepared Alc95% and Alc50% according to original literature. 20 compounds were isolated by using macroporous resin, silica gel, polyamide, Sephadex LH-20, Rp-18, preparative TLC and preparative HPLC chromato-graphy. The structures of them were elucidated by means of physical and chemical properties, modern spectroscopic analysis techniques—UV、IR、 EI/MS、ESI/MS、〓H-NMR、〓C-NMR、DEPT、HMQC、HMBC. They are nine anthraquinones: chrysophanol (95-1), physcion (95-2), emodin (95-5), aloemodin (95-7), rhein (50-1), sennoside A or B (50-6),ω-hydroxylemodin (95-10), chrysophanol-8-0-β-D-glucoside (95-12), aloemodin-ω-0-β-D-glucoside (95-13); three phenanthaquinones: tanshinone ⅡA (95-3), cryptotanshinone (95-6), tanshinone Ⅰ(95-4); one isoflavone: 7, 3'-dihydroxyl-5' methoxyisoflavone (95-14) and protocaechuic aldehyde (95-9), protocaechuic acid (95-11), astragaloside Ⅳ(50-4), amygdalin (50-5), 2, 3, 5, 4'-tetrahydroxylstilbene-2-0-β-D-glucoside (50-3),-catechin (50-2), cinnamic acid (95-8). Among them, 3'-dihydroxyl-5' methoxyisoflavone (95-14) is a new compound.
经过溶剂萃取、大孔吸附树脂富集、Sephadex LH-20精制、制备TLC及Semi-pre HPLC等手段从中分离了20个化合物，利用理化性质和波谱技术(UV、IR、EI／MS、ESI／MS、〓H-NMR、〓C-NMR、DEPT、HMQC、HMBC)相结合鉴定了它们的结构，分别为9种蒽醌类化合物：大黄酚，大黄素甲醚，大黄素，芦荟大黄素，大黄酸，番泻苷A或B，ω-羟基大黄素(ω-hydroxylemodin)，大黄酚-8-0-β-D-葡萄糖苷(chrysophanol-8-0-β-D-glucoside)，芦荟大黄素-ω-0-β-D-葡萄糖苷(aloemodin-ω-0-β-D-glucoside)；3种菲醌类化合物：丹参酮ⅡA(tanshinoneⅡA)，隐丹参酮，丹参酮Ⅰ(tanshinone Ⅰ)；1种异黄酮：7，3'-二羟基-5'-甲氧基异黄酮（7，3'-dihydroxy-5' methoxyisofla-vone）以及原儿茶醛，原儿茶酸，黄芪甲苷(astragaloside Ⅳ)，苦杏仁苷，2，3，5，4'-四羟基二苯乙烯-2-0-β-D-葡萄糖苷（2，3，5，4'-tetrahydroxylstilbene-2-O-β-D-g1ucoside），Z—儿茶素，桂皮酸。
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This indicated effects of regulation on scenescence of fruit were through influencing the changes of internal ABA content. The relationship between different oxidative enzymes in the flesh and pericarp and ethanol accumulation in different maturity of 'brumal jujube' were investigated.
与果肉相比，冬枣果皮中含有较高的总酚、H_2O_2含量和较低的抗坏血酸含量；果皮中含有两种游离酚酸：儿茶酸、阿魏酸，显著低于果肉中的酚酸种类，贮藏末期果皮中的两种酚酸分别下降了80.36％和59.1％；而且果皮总酚含量与转红率呈显著负相关R=-0.88~(**，推测酚类物质的变化参与了冬枣果皮色泽变化。
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Abstract］ Objective To study a RP-HPLC methods that determined the protocatechuic acid content in Fuxuekang Jiaonang.
妇血康胶囊中原儿茶酸的含量测定［摘要］目的建立反相高效液相色谱法测定妇血康胶囊中原儿茶酸的含量。
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A method based on capillary electrophoresis with electrochemical detection has been developed for the separation and determination of epicatechin, kaempferol, chlorogenic acid, 4-hydroxybenzoic acid, quercetin and protocatechuic acid in hawthorn for the first time.
首次采用毛细管电泳—电化学检测法同时测定山楂中的6种活性成分：表儿茶素，山奈酚，氯原酸，4-羟基苯甲酸，槲皮素和原儿茶酸的含量。
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Results: Nine compounds were obtained from the ethyl acetate fraction of C. speciosa and were identified as methyl chlorogenate, 5-O-cafeoyl quinic acid butyl ester, quinic acid butyl ester, 5-hydroxymethyl-furan-2-carbaldehyde, triacontanoic acid,-epicatichin, 7,8-dihydroxy-coumanrin, protocatechuic acid ethyl ester, and protocatechuic acid.
结果：从皱皮木瓜的乙酸乙酯萃取部位分离鉴定了9种化合物，分别为绿原酸甲酯，5-O-咖啡酰基－奎宁酸丁酯，奎宁酸丁酯，5-羟甲基－2-糠醛，三十烷酸，-表儿茶素，7，8-二羟基香豆素，3，4-二羟基苯甲酸乙酯，原儿茶酸。
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Eight phenolic acids in Satsuma mandarin during maturity were determined by high-performance liquid chromatography coupled with photodiode array detector in this study, which were:protocatechuic, p-hydroxybenzoic, vanillic, caffeic, p-coumaric, ferulic, sinapic and chlorogenic.
采用HPLC-PDA测定了不同成熟期温州蜜桔中八种酚酸的含量，即绿原酸、咖啡酸、对香豆酸、阿魏酸、芥子酸、原儿茶酸、对羟基苯甲酸和香草酸。
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Moreover, MeJA induced defense genes, such as pathogenesis-related proteins (PR2a), phenylalanine ammonia-lyase, BX9, and TPS. MeJA also increased DIMBOA and Vannillic acid content of leaves and roots significantly but leaf p－Hydroxybenzoic acid concentration was decreased significantly and Protocatechuric acid was produced in roots only.
1MeJA叶片处理能诱导叶片和根系中丙二烯氧化物环化酶基因、糖基转移酶（BX9）基因、苯丙氨酸转氨酶基因的表达，使叶片和根系中丁布含量升高，同时，6μL/L MeJA处理使第二叶中原儿茶酸含量显著降低，诱导根中产生原儿茶酸，使第二叶中香草酸含量和根中未知物质峰面积显著增大。
- 更多网络解释与儿茶酸相关的网络解释 [注：此内容来源于网络，仅供参考]
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catechin：儿茶酸
二林地区是台湾目前最大荞麦种植区域,近期更在台中区农业改良场、二林农会的推动下,引进了更具营养价值的鞑靼荞麦,希望将这『五谷杂粮之王』称号的高经济价值作物,推向国际. ◆槲皮素(quercetin)及儿茶酸(catechin)具有抗氧化作用
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Tea Catechin：茶叶儿茶酸
tea cake 午后茶点中的点心 | tea catechin 茶叶儿茶酸 | tea chest 茶叶箱(出口用);茶叶罐
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catechol,pyrocatechin：儿茶酚,焦儿茶酸
\\"儿茶酸\\",\\"catechin\\" | \\"儿茶酚,焦儿茶酸\\",\\"catechol,pyrocatechin\\" | \\"儿茶\\",\\"catechu\\"
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Pyrocatechol Catechol：邻苯二酚 显影剂 焦儿茶酸
格拉星 显影剂 甘氨酸 N-乙酸基氨基酚 Glycine | 邻苯二酚 显影剂 焦儿茶酸 Pyrocatechol Catechol | 邻苯三酚 显影剂 焦醅酸 焦酚 焦性没食子酚 Pyrogallol
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Protocatechualdehyde：原儿茶醛
对酪氨酸酶活性有一定抑制作用.乌蕨对小鼠基本无毒.乌蕨含有黄酮类化合物,已从叶分离得到牡荆素(Vitexin)、丁香酸(Syringic acid)、原儿茶醛(Protocatechualdehyde)和原儿茶酸(Protocatechuic acid).提出应当对乌蕨药效的物质基础进行深入研究,
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Protocatechuic acid：原儿茶酸
亦含鞣质和多糖.从根中分离出的酚性成分有: 迷人醇(Fallacinol)、6-羟基芦桧大黄素(Citreorosein)、大黄素-8-单甲醚(Questin)、6-羟基芦桧大黄素-8-单甲醚(Questinol)、原儿茶酸(Protocatechuic acid)等.还分离鉴定了槲皮素(Quercetin)、槲皮素-
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Protocatechuic acid：原儿茶酸[平喘消炎药]
Protizinic Acid 丙替嗪酸[消炎药] | Protocatechuic Acid 原儿茶酸[平喘消炎药] | Protokylol 普罗托醇[支气管扩张药,升压药]
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Protocatechuic aldehyde：原儿茶醛
未发现有镇吐作用的第三胺生物碱;尚含高龙胆酸(homogentisic acid)、草酸钾等无机盐和天冬氨酸、谷氨酸、精氨酸、β-与γ-氨基丁酸、半乳糖、粘液质、少量挥发油、原儿茶醛(protocatechuic aldehyde)、三萜类化合物、原儿茶酸等;还分离出一种结晶性蛋白质为半夏蛋白Ⅰ(pinellin)[1,
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Protocatechuic acid HPLC：原儿茶酸
TCM-018 原儿茶醛 Protocatechuic aldehyde HPLC≥99% | TCM-019 原儿茶酸 Protocatechuic acid HPLC≥99% | TCM-020 淫羊藿苷 Icariin HPLC≥98%
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Protocatechuic Acid std. JB：原儿茶酸
E1128078 梓醇 Catalnol std. CM | E1128079 原儿茶酸 Protocatechuic Acid std. JB | E112812 原儿茶醛 Protocatechuic aldehyde std. CM