氧化剂

Ellagic acid is a water-soluble antioxidant that promotes healthy cell development by shielding DNA from oxidative damage.

鞣花酸是水溶性抗氧化剂，能促进细胞健康发展，减少DNA 等遗传物质受氧化损伤。

Objective To study the protective effects of reduced glutathioneon early stage of endotoxic shock in rabbits.

摘要］目的研究抗氧化剂还原型谷胱甘肽对内毒素休克兔早期的保护作用。

But after 24 h,it was dosage depended,and had a random nonlinear relation.Conclusion In a certain scope of concentration,PMBE has no cytotoxity on HaCaT,and can be used in the selection of anti-inflammatory medicine for epidermic cells.

在随后的松皮、松针提取物鉴定中，发现其中含有大量的抗氧化剂———黄酮类化合物原花青素，它的抗氧化、清除自由基的能力是维生素C的20倍，维生素E的50倍[2，3]。

Ergothioneine is a kind of precious amino acid, and it is also a natural antioxidant. It plays an important role to prevent the oxidative damage in organism. Ergothioneine cannot be biosynthesized in humans, only can be absorbed from the diet. In recently the research discovered the high content of ergothioneine in the mushroom. Content of ergothioneine of Pleurotus eryngii is the highest from 28 kinds of mushrooms, therefore the research untilized P. eryngii to make the products of P. eryngii-fermented adlay and P. eryngii-fermented buckwheat which content high ergothioneine. Also, we analyzed their proximate composition, nutritional components, taste and physiologically active components, antioxidant properties and evaluation of anti-imflammatory effect.

中文摘要麦角硫因为一种稀有的胺基酸，也是天然的抗氧化剂，其在生物体内对氧化压力伤害之预防扮演著重要角色，麦角硫因不能在动物体内合成，仅能由食物中摄取，近年来发现在菇类中含有高含量的麦角硫因，从28种食药用菇类中筛选出麦角硫因含量较高的菌种，以杏鲍菇子实体最高(1521.6 mg/g dw)，因此本论文以杏鲍菇为媒介，利用固态发酵方式，制备出高麦角硫因之杏鲍菇薏仁和杏鲍菇荞麦，并针对薏仁、杏鲍菇薏仁、荞麦、杏鲍菇荞麦和杏鲍菇菌丝体，进行一般成分、营养、物性、呈味、生理活性物质、抗氧化性质之分析及抗发炎反应之评估。

In order to cutting down the cost, flocculation of recombined Erwinia carotovora-Eccl3B cell from broth, influence of temperature, pH and oxidants on the separation of PHB were studied; and the method which measure the molecular weight of PHB by intrinsic viscosity was also studied; furthermore, a phenomenon was found that insolubility of PHB in chloroform can be changed by pretreated at over 120℃ for the fist time, and the mechanism of this phenomenon was explored.

为了降低成本，提高生产效率，本文针对发酵法生产PHB过程中存在的，发酵液难以分离沉淀，非有机溶剂提取PHB时分子量严重降低等问题，进行了发酵液的絮凝，及温度、pH、氧化剂对提取PHB影响的研究。并对粘度法测定PHB分子量的方法进行了研究，同时，对于研究过程中发现的，加热后PHB在三氯甲烷中的溶解性变化及其原因进行了探索。

II. Oxidation of α,β-Unsaturated Ketones with Hypervalent Iodine Reagent Literatures reported that lead acetate-borontrifluoride etherate (LTA/BF3-Et2O) can transform α,β-unsaturated ketone to β,γ-unsaturated carboxylic acid ester through an one-step oxidative rearrangement reaction. Our research along this line indicated that hypervalent iodine reagents can also affect the same reaction.

II。 高价碘对α，β-不饱和酮之氧化研究先前已有文献指出用leadacetate-borontrifluoride etherate (LTA/BF3-Et2O)做氧化剂，可以经由一步的重组氧化反应把α，β-不饱和酮(α，β-unsaturated ketones)氧化成β，γ-不饱和碳酸酯(β，γ-unsaturated carboxylic acid esters)衍生物。

Let green tea to be your daily beverage because it contains tremendous amount of antioxidant falconoid, catechins.

每天喝绿茶，因为绿茶中含有大量抗氧化剂类黄酮和茶酸。

Although an apple has a low Vitamin C content, it has antioxidants and falconoid which enhances the activity of Vitamin C thereby helping to lower the risks of colon cancer, heart attack and stroke.

尽管苹果的维他命C含量不高，但是其所含的抗氧化剂和类黄酮能提高维他命C的活性，进而有助于降低直肠癌，心脏病和中风的发生率。

Tremendous amount of antioxidant falconoid, catechins.

每天喝绿茶，因为绿茶中含有大量抗氧化剂类黄酮和茶酸。

On the epoxidation of styrene with molecular oxygen using cobalt-containing faujasite Co(superscript 2+-NaX as the catalyst have been studied.

100℃对含钴八面沸石Co(上标 2+-NaX催化的以氧气为氧化剂的苯乙烯环氧化反应的影响。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。