酚的

In the presence of NaH and in DMF, the acyclic crown ethers 1a and 1b were synthesized by the reaction of di-or triethyleneglycol ditosylate and o-methoxymethoxybenzyl alcohol, which was obtained from salicylaldehyde via the protection of the hydroxyl group with chloromethyl methyl ether followed by the reduction of the formyl group with NaBH4. The hydrolysis of 1a and 1b with dilute hydrochloric acid provided the diphenolic type acyclic crown ethers 2a and 2b respectively in good yield.

将水杨醛与碱和氯甲基甲基醚反应，再经过NaBH4还原，即制得邻苯甲醇，然后将其在DMF中与NaH和二甘醇二对甲苯磺酸酯反应，得开链冠醚1a和1b.1a和1b经稀酸水解，即脱保护而分别生成新的酚型开链冠醚2a和2b。

Macroporous adhesive resin column and Sephadex LH20 column were employed to separate and fractionate the crude extract and the structures of the main compounds were analyzed by HPLC-ESI-MS.

通过大孔树脂结合SephadexLH—20对芒果多酚粗提物进行分离纯化和分级制备，采用HPLC-ESI-MS对主要组分的结构做了初步分析。

Six Vegetables, namely tomato, cucumber, French bean, radish, Spinach and Chinese cabbage, were irrigated with Petrochemical wastewater containing Phenols and aromatic hydrocarbons and treated with biochemical process.

利用生化处理石油化工含酚和芳烃混合废水，灌溉了番茄、黄瓜、菜豆、萝卜、菠菜和白菜等6种蔬菜，经过观察，对以上蔬菜的生长、产量和品质均没有不良影响。

Such is the case in pyrrole, thiophene, and furan

吡咯、噻酚和呋喃的情况就是这样。

Furfur. At the same time, selected the culture supernatant. Used the whole-fat-cow"s-milk plate method, the Folin-phenol method and the QuantiCleave proteinase Assay Kit to test the proteinase activity of mycelial phase and yeast phase of M. furfur. The effect of temperature and pH on this assay was also evaluated.Result:①The whole-fat-cow"s-milk plate method: Seven days after inoculation, the proteinase activity of the mycelial phase supernatant (12.5 ± 1.2mm) is higher than that of the yeast phase (9.25±0.71mm)(p.05); With the passage of the inoculation time, the proteinase activity of the mycelial phase is rising; the temperature has no obvious effect on the proteinase

结果：①全脂牛奶平板法：培养第7天菌丝相上清液蛋白酶活性(12.5±1.2mm)高于酵母相(9.25±0.71mm)(p＜0.05)；菌丝相上清液蛋白酶活性随培养天数延长而增大；25℃和37℃两种温度对上清液蛋白酶活性无明显影响(P＞0.05)；②Folin-酚法：上清液蛋白酶活性随培养天数、菌落计数、菌丝诱导率增加而增大，培养液pH值呈下降趋势；同一天的菌丝相上清液蛋白酶活性明显高于酵母相(p＜0.05)；三种温度(25℃、37℃、49℃)及三种pH值(3.8、5.6、7.4)对上清液蛋白酶活性无明显影响；温度37℃、pH5.6时菌丝相上清液蛋白酶活性最高；③QuantiCleave蛋白酶试剂盒：菌丝相及酵母相上清液中均含有蛋白酶且

ConclusionThe polyphenols from Galla Chinensis have strong antioxidant activity.

五倍子中多酚类物质具有较强的抗氧化活性。

objective to investigate the effects of epigallocatchin gallate on telomerase activity of bladder carcinoma cell line t24 and biu87 and its possible mechanisms.

目的 探讨茶多酚对膀胱肿瘤细胞株t24和biu87的端粒酶活性影响及其可能机制。

A typical dosage is 100 to 150 mg three times a day of a green tea extract standardized to contain 80% total polyphenols and 50% epigallocatechin gallate.

一个典型的用量为100至150毫克每天三次，每次一绿茶提取物中含有80%总多酚标准表儿茶素酸酯和50%。

Epigallocatechin gallate is the most active and studied of green tea's catechins.

表没食子儿茶素没食子酸酯是绿茶儿茶酚中活性最强，研究最为深入的物质。

The method has been successfully applied to the determination of phloroglucinol in serum and gallic acid in Ninmitai Capsule.

该方法成功应用于血清中间苯三酚和宁泌泰胶囊中没食子酸的测定。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。