酚

Objective To study the effect of high pressure alone or combined with heating treatment of fresh pear juice on PPO activity in it.

水果中的多酚氧化酶催化酚类物质在有氧气的条件下生成褐色物质称为酶促褐变，鲜榨梨汁生产的一大难题是防止酶促褐变。

RESULT: The K or K of laetrile, paeoniflorin and paeonol had no significant difference at concentration of 19.2~304.8, 18.4~329.5 and 7.8~125 μg/mL respectively or in four different regions of rat intestinal tract, the absorption quantity of laetrile, paeoniflorin and paeonol was proportional to its concentration respectively and the phenomena were not observed saturable. Except for Paeonol, the K and K of laetrile and paeoniflorin had no significant difference at pH value 5.0~7.4. The K or K of laetrile and paeoniflorin from the extration which contains one kind of active components was significantly less than that of same components from GuizhiFuling Capsule content.

结果：苦杏仁苷、芍药苷、丹皮酚分别在19.2~304.8、18.4~329.5、7.8~125 μg/mL浓度范围内，吸收量与浓度呈线性关系，无高浓度饱和现象，K、K值基本保持不变；除丹皮酚外，在pH 5.0至pH 7.4范围内苦杏仁苷、芍药苷的吸收不受pH影响；3成分在各肠段的K、K均无明显差异；仅含有上述3成分中一种成分的各个提取物的苦杏仁苷、芍药苷的K、K值显著小於由配方药材提取得到的胶囊内容物的相应成分的K、K值。

The company occupies near mu, with more than Tetrabromobisphenol bromo-phenol A and three production lines, annual output Tetrabromobisphenol A 10000 tons and 6000 tons of phenol three bromine, other brominated flame retardant product line is being planned , the company formerly known as Zhangjiagang City Chemical Co., Ltd. 1 letter retardant plant of more than a decade brominated flame retardants professional production management and quality control experience, advanced production technology, excellent product quality stability, the price in the industry with strong competitiveness.

公司占地近百亩，拥有多条四溴双酚A及三溴苯酚生产线，年产四溴双酚A 10000吨及三溴苯酚6000吨，其它溴系阻燃剂产品生产线正在规划中，公司前身为张家港市信一化工有限公司阻燃分厂，拥有十年以上溴系阻燃剂专业生产管理及品质控制经验，生产工艺先进，产品品质优异稳定，价格在业界具有强大竞争力。

Adopting condensation copolymerization between alkylphenol polyoxyethylene ether and methyl aldehyde and using concentrated sulfuric acid sulfonation, which it with sodium hydroxide neutralization, finally acquired sulphonate anionic surfactant, utilize as temperature resistance 、mineral salt tolerance for heavy oil viscosity reducer , research on the performance evaluation, the result indicate, the amount of sulphonate anionic surfactant to be used at 0.2wt%, viscosity reducer rate reached 92.1%; added with 0.5wt%, the calcium and magnesium ions resistance in mineral water up to 800mg/L.

采用辛基酚聚氧乙烯醚和甲醛的共缩聚物与浓硫酸磺化后，再用氢氧化钠中和后得到磺酸盐阴离子表面活性剂作耐温抗矿盐稠油降粘剂，并对其进行性能评价，结果表明，辛基酚聚氧乙烯醚甲醛共缩聚物磺酸盐阴离子表面活性剂加量为0.2wt%时，降粘率高达92.1%，抗钙、镁离子能力达800mg/L。

After the skin absorption accelerants and surface active agents of different proportions were put into glad happy troches,the influences on the effective compositions of magnolol and skin absorptions of honokiol were studied by use of the experiment methods of high efficient liquid phase The experimental results showed that the skin absorption accelerants and surface active.

采用离体大鼠皮为皮肤模型，自制透皮吸收装置，研究了在欣乐片剂中加入不同比例的透皮吸收促进剂和表面活性剂后，它们对有效成分厚朴酚和和厚朴酚透皮吸收的影响。

The scavenging effect of polyphenols extracted from grape seeds such as monomers, dimers and trimers on superoxide and hydroxyl radicals is studied with the ESR spin trapping method. The results are comparable with those obtained from chemiluminescence method. It has been proved that polyphenols extracted from grape seeds have a strong scavenging effect on Oxygen free radicals. Probably this is the reason why drinking some grape wine every day is good for one's health.

用ESR自旋捕集技术研究了从葡萄籽分离的单体、二聚体和三聚体等多酚类物质对羟基自由基和超氧阴离子的精除作用，并与化学发光法的测定结果进行了比较，得到了较一致的结果，证明葡萄籽中多酚类物质对氧自由基的确有较好的清除作用，这很可能是喝少量葡萄酒有利于身体健康的原因。

The optimum amount of Tea Polyphenols is 200mg/kg. The Citric acid and Vitamin C are the synergists of Tea Polyphenols. The experiment result shows that the effect of Vitamin C is better than Citric acid.

在苦杏仁油中茶多酚的最适添加量为200mg/kg，柠檬酸和维生素C对茶多酚表现出一定的增效作用，且维生素C的效果优于柠檬酸。

With peroxide value as experimental index, the oxidative stability of cold pressed oil of Xanthoceras sorbifolia Bunge seed was studied by Schaal experiment using TBHQ, PG and V as antioxidants, V and critic acid as synergists.

采用Schaal烘箱加速法，以叔丁基对苯二酚、没食子酸丙酯、生育酚V(下标 E为抗氧化剂，抗坏血酸V(下标 C和柠檬酸为增效剂，过氧化值为试验指标，研究了光线、温度等对冷榨文冠果籽油抗氧化性能的影响。

The cyclization of carbodiimides 2 and 6 with phenol or alcohol was studied and the results showed that the cyclization of carbodiimides 2 and 6 with phenol in the presence of solid potassium at room temperature to 40℃, the cyclization of carbodiimides 2 and 6 with alcohol should in the presence of RONa.

进一步研究了碳二亚胺2和6与酚和醇的成环反应，结果表明该碳二亚胺与酚反应在碱(固体K_2CO_3)催化条件下，室温或加热到40℃便可顺利关环，与醇反应需要用到更强的碱醇钠催化才可以顺利关环。

Experimental results showed that aerosol created by 1,3,5-trimethylbenzene photooxidation can be classify with five distinct chemical particle classes, the predominant components of these five particles are aromatic aldehyde, phenol, nitrophenol and carboxylic acid compounds.

利用该算法对OH自由基启动1，3，5-三甲苯光氧化形成的二次有机气溶胶单粒子质谱数据进行了聚类分析，在得到的五个聚类中包含了芳香醛、酚类化合物、硝基酚和羧酸等重要的光氧化产物，为研究苯系物光氧化机理提供了新的信息。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。