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- A method is described for successive purification of epigallocatechin gallate(EGCG)and epicatechin gallate(ECG)by medium-pressure silica gel column chromatography. 采用一种连续中压硅胶柱层析分离高纯度表没食子儿茶素没食子酸酯(EGCG)及表儿茶素没食子酸酯(ECG),原料为含量高于98%25的茶多酚。
- The results showed that the partition coefficient of EGCG bound to MIP coluld be 140.3, which was higher than that of gallocatechin-gallate(GCG), epigallocatechin (EGC) and epicatechin gallate(ECG). 结果表明分子印迹聚合物对模板分子具有较高的选择性和识别能力,而空白聚合物却不具备这样的特性。
- Keywords epigallocatechin gallate;epicatechin gallate;silica gel;successive medium-pressure column chromatography; 表没食子儿茶素没食子酸酯;表儿茶素没食子酸酯;硅胶;连续中压柱层析;
- epicatechin gallate 表儿茶素没食子酸酯
- Exactly how epicatechin does that isn't clear. 表儿茶素提高记忆力的具体机制尚不清楚。
- Objective:To improve the synthesis technology of n-butyl gallate. 目的:改进没食子酸正丁酯的合成工艺。
- To study antimutation of epigallocatechin gallate(EGCG). 目的研究表没食子儿茶素没食子酸酯(EGCG)抗突变作用。
- The milk chocolate eaters had the lowest epicatechin levels of all. 三者之中，牛奶巧克力的进食者含有最低水平的表儿茶酚。
- Propyl gallate known as a familiar antioxidant,is widely used in food industry. 没食子酸丙酯作为一种常见的抗氧化剂已被广泛应用于食品行业。
- Result:In optimal conditions,the yield of n-butyl gallate was over 93.8%. 结果:在最佳实验条件下没食子酸正丁酯收率达93.;8%25。
- The formulas for these phenolic compounds are Epigallocatechin gallate is the main flavanol in dried green tea. 这些酚类化合物的分子式为: 表儿茶素酸酯是干绿茶中的主要黄烷醇。
- Content : minimum 21.0 per cent of the total amount of catechin (C 15 H 14 O 6 ) and epicatechin (C 15 H 14 O 6 ). 本品含儿茶素(C 15 H 14 O 6 )和表儿茶素(C 15 H 14 O 6 )的总量不得少于21.;0%25。
- Some of the mice drank or ate water or chow laced with epicatechin and ran on a running wheel for two hours daily. 其中一些小鼠的水或食物被加入了表儿茶素，它们每天要在一个滚动的轮子上跑动两小时。
- The paper said that epicatechin is also found within certain fruits and egetables, along with chocolate, wine and tea. “我们都认同青霉素和麻醉药非常重要，”他说“但是表儿茶酸具有使我们远离西方最常见五种疾病中四种疾病的潜力”
- A series of gallate ester were prepared in use of dodecyl benzene sulfonic acid as catalyst. 以工业用十二烷基苯磺酸为催化剂制备了一系列没食子酸酯,讨论了影响酯化反应的各种因素。
- But the researchers found signs of blood essel growth in the brains of the mice that consumed epicatechin. 但研究者们在食用表儿茶素的小鼠的大脑中发现了血管增生的迹象。
- A potent catechin, epigallocatechin gallate, or EGCG, is three to four times more abundant in green tea than black. 儿茶酚，儿茶素或是EGCG的药效都很强，而绿茶中它们的含量是黑茶的三到四倍。
- Moreover, epicatechin absorption into the bloodstream was much lower than when dark chocolate was eaten alone. 此外，血液吸收的表儿茶酸也比光吃黑巧克力低得多。
- A new processing method of propyl gallate was advanced in order to decrease the cost of production. 对常见的没食子酸丙酯提出一种尚未见报道的制备方法,可以大幅度地降低生产成本。
- The study is just that epigallocatechin gallate (EGCG) has for the adjuvant treatment of HIV infection potential. 这项研究仅仅是认为表没食子儿茶素没食子酸酯(EGCG)具有用于艾滋病病毒感染辅助治疗的潜力。
