酚类

Ginkgo wood vinegar was a kind of quite complicated compounds, which include water, organic acid, phenol compound, alkanet compound, alcohol compound and so on.

5银杏木醋液是一种组成成分相当复杂的混合物，主要成分是水，其次是有机酸、酚类、醛类、酮类、酯类及其它杂环类物质等。

Bamboo vinegar have above 100 kinds constituents. Which include water, organic acid, phenol compound, alkanet compound, alcohol compound and so on.

竹醋液主要成分是水，其次是有机酸、酚类、醇类、醛类及其它杂环类等100多种物质。

Sesame-flavor liquor (produced by the combination of Luzhou-flavor liquor production techniques, Maotai-flavor liquor production techniques and Fen-flavor production techniques) contains multiple flavoring compositions including ethyl acetate, ethyl caproate, pyrazine, furan, phenols, thiazole and sulfur compound etc. The coexistence of those flavoring compositions in proper proportion finally forms the special sesame flavor.

其与浓清酱工艺的巧妙结合，香气成分复杂，除含适量的乙酸乙酯、己酸乙酯外，主要还含类似焦香的吡嗪类与呋喃类、酚类、噻唑、含硫化合物等成分，这些成分以适当的比例共存时才能构成芝麻香的特有香气。

The results show that: 27 compounds were identified at 600℃, and most of them were alkenes, alkanes, acids, alcohols and phenolic substances; geraniol was identified, and its relative content was 3.6, which shows that geranyl 8-methoxycoumarin-3-carboxylic acid ester can release a certain amount of geraniol at smoke temperature; geranyl 8-methoxycoumarin-3-carboxylic acid ester can improve and modify the flavor, enhance the notes of sweet aroma and bean aroma, and reduce the biting taste of cigarette smoke.

结果表明，600℃时，8-甲氧基－香豆素－3-甲酸香叶酯的热解产物中共鉴定出27种成分，主要为烯类、烷类、酸类、醇类、酚类；鉴定出香叶醇，且相对峰面积3.6，说明8-甲氧基－香豆素－3-甲酸香叶酯能在卷烟燃吸温度下释放出一定量的香叶醇；8-甲氧基－香豆素－3-甲酸香叶酯具有改善和修饰卷烟香气，增加甜韵和豆香香韵，减轻刺激性的作用。

It can be widely used to get rid of toluene,dimethylbenzene,and hydroxybenzene,and ester,and hydroxyketone,and aldehyde as well as bad smell and other gases containing small heavy metal.

可广泛用于处理含有甲苯、二甲苯、苯等苯类、酚类、酯类、醇类、醛类等达式有机气体及恶臭气体和含有微量重金属的低浓度、大风量的各类气体。

Domestic and foreign has conducted extensive research to the phytoparisite process, quininones, the hydroxyl acids and flavonoids are identified as haustorial inducing factors in the perception of the host plants.

国内外对植物寄生过程进行了广泛的研究，普遍认为醌类、类黄酮类、酚类3大类化学物质为植物寄生过程中的化学信号物质。

The aim of this study was to examine the possible antioxidant and antiproliferative activities of the ethanol and water extracts of four Hydrocotyle species from Taiwan. ABTS radical monocation scavenging, FRAP method, DPPH radical scavenging, reducing power method, total polyphenol content, total The results showed that the water extracts of all the samples had higher antioxidant and antiproliferative activities than the ethanol extracts.

本实验针对台湾产四种天胡荽属植物之水萃取物及乙醇萃取物进行抗氧化及抗增生活性研究，分析方法包括ABTS自由基的清除、FRAP方法、DPPH自由基的清除、还原力、总多酚类含量、总类黄酮类含量、总黄酮醇类含量以及癌细胞增生之抑制，结果显示所有样品的水萃取物之抗氧化及抗增生活性皆大於乙醇萃取物，但在抗氧化活性方面，所有受测样品活性皆小於正对照组。

Results: Two of them may contain the same chemical component patterns, polyose, acid tannic, phenols, organic acid, flavonoids, anthraquinone, cardiac glycoside, triterpenoids and its saponin etc.

结果：两者所含的化学成分类型基本相同，可初步确定其可能含有多糖、鞣质、酚类、有机酸、黄酮类、蒽醌类、强心苷、三萜类化合物及其皂苷等化学成分。

Low-boiling phenols in low-temperature coal tar are important chemical raw materials. For the identification and determination of the individual phenol boiling below 210℃ in the low temperature coal tar, the methods of gas chromatography, liquid-liquid chromatography followed by ultra-violet analysis and fractional distillation followed by infrared analysis were evaluated and compared.

随着煤炼油工业的发展，煤焦油中的酚类，特别是低級酚，作为化工原料的利用很重要，我們应用(1)气液色譜法，(2)液液色譜与紫外光譜法結合及(3)精餾与紅外光譜法結合三种不同方法对210°以前的低級酚进行了各种异构体的成分分析，比較分析結果：三种方法对同一样品进行分析时，最大絕对誤差在2％以内，其中以气液色譜法最为快速，液液色譜法次之，精餾-紅外光譜法費时間較多；但后二种方法所得数据較完全。

Changes of contents of phenolic compounds (catechin, quercetin, chlorogenic acid, ferulic acid) and indoleacetic acid, and changes of activities of polyphenoloxidase and peroxydase during the cuttings rooting were determined.

蛇足石杉分别扦插于原生境土壤和灭菌土壤上，调查其生根率，测定生根过程中吲哚乙酸、酚类化合物(儿茶酚、槲皮素、绿原酸、阿魏酸)、多酚氧化酶和过氧化物酶活性的变化。

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。