酚类

It is shown that main reason causing browning and senescence of Nelumbo nucifera gaertn in the storage is that catalytic oxidation of polyphenol oxidasein its tissue make phenols into black pigment.

指出莲藕在贮藏过程中发生褐变和衰老的主要原因是组织内部的多酚氧化酶催化氧化酚类物质产生黑色素。

The bio-degradation pathways of NP would be that the long branches in nonyl of NP are firstly degraded into short methyl branches, which come into being a series of short chain alkyl phenols with different branch structures. The middle products should be further metabolized into simpler compounds, such as benzene acetic.

污水生物处理过程中壬基酚可能的初级生物代谢途径是壬基上的长支链断裂为短的甲基链，生成一系列带有不同分支结构的短链烷基酚类代谢产物，进一步的代谢产物有苯乙酸。

The performance of static adsorption of phenolic compounds onto this kind of resin was i...

研究了该树脂对水溶液中酚类化合物的吸附性能，并与NKA-II吸附树脂进行了比较，结果表明，固化单宁大孔吸附树脂对水溶液中苯酚的吸附能力高于NKA-II，这主要得益于树脂表面的酚羟基。

Ten secondary metabolites in phloem of different strains of poplars were extracted by different chemical methods and their contents were determined.

摘要通过不同化学方法提取并分析了不同品系杨树韧皮部10种次生代谢产物的含量及含量差别，研究了不同制样方法对单宁、酚类及酚酸产物含量提取结果的影响。

The stronger antioxidant capacity of tea polyphenol is due to the presence of phenolic compounds, such as catechins in its composition.

茶多酚之所以具有很高的抗氧化活性是由于酚类化合物的存在，如在它的结构中存在儿茶素。

This complex reaction was phenolic electronic substitution reaction, so reaction rate was related with the positive electricity of pro-electronic reagent, as well as the form of aromatic hydrocarbons. Rates of chlorination of phenol and 2-monochlorophenol were faster in alkaline water than that in weak acid water, so 2,4-dichlorophenol and 2,4,6-trichlorophenol formation concentrations increased with the reaction time.

该复合反应属于酚类电子取代反应，反应速率与亲电子试剂的阳电性以及芳香烃的形式有关，碱性水环境中氯取代苯酚和2-一氯酚的速率要快于在弱酸性水环境；随着pH的升高，2，4-DCP和2，4，6-TCP的生成浓度也不断增加。

Phenolic-doped melamine-formaldehyde aerogels were investigated by adding resorcin to MF sol before the formation of crosslink. The solvents in wet gel were then exchanged with ethanol.

以三聚氰胺和甲醛为原料制备MF气凝胶，在凝胶化过程中加入酚类化合物对MF体系进行改性，获得相应的湿凝胶，湿凝胶经超临界干燥，制备出密度为最低可达50 kg·m-3的酚改性MF气凝胶。

The activities of enzymes including Polyphenol Oxidase, Superoxide Dismutase, Catalase, Peroxidase and the contents of soluble protein, phenolics contents and varieties in the pericarp, sarcocarp and core of the pear fruits were measured.

以黄金梨、大香水、新梨七号为试材，研究了贮藏后梨褐变不同部位酚类物质含量和种类、多酚氧化酶、超氧化物歧化酶、过氧化氢酶、过氧化物酶的活性及可溶性蛋白的关系。

The reaction was found to bewith the formation of a single complex in which the molar ratio of Fe+++ tois 1:1. This result has also been confirmed by interferornetric method and potentiometnetitration.

氯化高铁与酚类化合物产生颜色，这种颜色的来源是由於高铁离子与酚某~-形成络离子，所以可以应用Job在1928年所提出的连续变化法(The Method of Continuous Variation)研究这些离子的组成。

Wood Vinegar is a natural material that is distilled from wood. It is compose of organic acid and hydroxybenzene , Various dosage of wood vinegars, pyrolignerous acid and guaiacol were mixed into organic manure firstly in this experiment, and then, the above said organic manure are separately added into soil. Under the analysis of the amount of the edaphon, adding 10g wood vinegar to 1kg organic manure and 30kg soil can much active the edaphon effectively in a short term and make a maximum rising extent of edaphon numbers.

木醋液是从多年生柞木中经过高温蒸馏出来的纯天然物质，其主要成分是有机酸和酚类物质，为了明确木醋液和主要成分对土壤微生物的作用，将加入不同剂量的木醋液、愈创木酚、醋酸的有机肥施入土壤，观察土壤中微生物数量的变化，结果表明：在1kg有机肥中加入10g木醋液，施入30kg土壤中，土壤微生物数量增加幅度最大，土壤微生物10天内被有效地激活；同时，当在1kg有机肥中木醋液的添加量高达50g时，对土壤微生物有一定的抑制作用。

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。