...β-谷甾醇；花含β-谷甾醇及其葡萄糖甙，三十一烷(hentriacontane)，三十一醇(hentriacontanol)，原儿茶酸(protocatechuic acid)，槲皮素，类胡萝卜素(carotenoids)；花芽含2-酮戊二酸(2-ketoglutaric acid)，草酰乙酸(oxaloacetic acid)，二羟乙酸(glyoxylic...
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Based on the fluorescent reactions, new fluorimetric methods for the determination of protocatechuic acid in THW were proposed. The detection limits of the methods were 0.17 and 0.36 ng ml-1, respectively.
基于原儿茶酸的两种荧光反应,建立了测定棕榈子中原儿茶酸含量的荧光分析新方法,检出限分别为0.17和0.36 ng ml-1。
参考来源 - 硼、铝敏化荧光法测定中药成分丹皮酚、原儿茶酸和没食子酸·2,447,543篇论文数据，部分数据来源于NoteExpress
前人研究表明细菌降解苯环类化合物有邻苯二酚、龙胆酸、原儿茶酸等途径。
The former researches have indicated that bacteria degrade aromatic compound through several paths such as brenzcatechin pathway, gentisic acid pathway and dihydroxy benzoic acid pathway.
微波、超声波和热回流提取技术分别用于提取杜仲中的绿原酸、咖啡酸、没食子酸、原儿茶酸和香草酸，并用高效液相色谱进行分析。
Microwave-and ultrasonics-assisted extraction(MAE and UAE) and heat reflux extraction(HRE) techniques were respectively used for simultaneous extraction of five polyphenolic acids, i.
苦涩味均较强的果实其绿原酸、儿茶素、表儿茶素、根皮素和原花青素含量最高。
In fruits with both astringent and bitter taste, the contents of chlorogenic acid, catechin, epicatechin, phloridzin, and procyanidins were the highest.
原儿茶酸( Protocatechuic acid, PCA) 别名：3,4-二羟基苯甲酸，CAS:。 分子式： (HO)2C6H3COOH，分子量： 154.12，性质：白色至褐色结晶性粉末，在空气中变色。密度1.54g/cm3。熔点约200℃（分解）。溶于50份水中；溶于乙醇、乙醚。植物来源：存在于鳞始蕨科植物乌蕨[Stenoloma chusanum(L.)Ching]的叶，冬青科植物冬青(Ilex chi-nensis Sims)的叶等植物中。 药理功效：本品具有抗菌作用，体外试验时对绿脓杆菌、大肠杆菌、伤寒杆菌、痢疾杆菌、产碱杆菌及枯草杆菌和金黄色葡萄球菌均有不同程度的抑菌作用。亦有祛痰、平喘作用。临床用于治疗慢性气管炎。
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