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Their antioxidant activities were investigated and compared with ascidian oil V by an oxidative stability instrument. The results show that components dihydrotanshinone and tanshinone Ⅰ have strong antioxidant activity at 0.01% addition.

以海鞘油脂为底物,用OSI仪测定了几种丹参酮类化合物的抗氧化活性,结果表明二氢丹参酮和丹参酮Ⅰ是很好的油脂抗氧化剂,添加量为0.01%时,就可使油脂的氧化稳定性提高3~4倍。

The water quality and pH value have little effect on the autoxidation. and the adding of catalyst leads to the decrease of its storage stability.

水质和pH值等条件对自动氧化几乎没有影响,自由基引发剂能加速自动氧化,自由基吸收剂则使稳定性提高。

Simultaneous removal of NO and SO〓 can be achieved by dissolving calcium oxide into cobalt ethylenediamine basic solution.

在碱性溶液中加入乙二胺合钴也可以实现NO的氧化和吸收同时进行,乙二胺合钴离子是氧化催化剂,氧化剂是废气中的氧气,该方法的实施能使NO的脱除工艺简化;在该溶液中再加入生石灰可以同时脱除SO〓。

In my opinion, Cu complexes with unsaturated alcohol to form a complex compound; the nitrogenous compound introduced serves as the complex compound's stabilizing agent and reduces activation energy of reaction; TMPO serves as oxygen carrier and displays it's selective oxidation function. This new method and mechanism also demonstrates significance to other similar organic reactions.3 In the chlorohydrin reaction, NaCIO is replaced by Ca2see Chapter4.4.3.4(2 .A, this method hasn't been reported in previous literature,which exerts more buffer action to the react system, the yield increased from 52% to 88.6%; at the same time it solve the problem of poor stability and low percentage composition of NaCIO.

认为:CuD与烯醇形成络合物:含氮有机物的引入起到稳定络合物,降低活化能的作用:而TMPO则充当携氧子起传递氧的作用,并具有选择氧化功能:这种新的方法和理论对类似的反应(不饱和醇类在络合体系下选择性催化氧化为对应的醛也具有重要的指导作用。3在异戊二烯的氯醇化反应中,用次氯酸钙代替次氯酸钠见第4章4.3.4(2.A,本方法未见文献报道,使反应系统更加温和,收率由52%提高到88.6%:并解决了次氯酸钠稳定性差、有效氯含量低的实际问题,具有重要的实用意义。

The effects of freezing on the fermentation and speed of infusion of congou black tea was studied.Congou black tea from the fresh and withering tea leaves was performed as follows: deep freezing at -17 ℃ for 2 h,then thawing,rolling,fermenting and drying.

为了使茶多酚氧化酶以可溶形式从完整细胞或组织结构中释放出来,并保持其活性和稳定性,催化多酚类氧化,通常要将茶鲜叶在一定介质中进行充分的细胞破碎,释放出细胞内含物。

A refining process for nonoxidizing metals, such as silver and gold, in which a metallic mixture is oxidized at high temperatures and base metals are separated by absorption into the walls of a cupel.

烤钵冶金法一种使银和金等金属不氧化的提纯过程,在高温下金属混合物被氧化,低劣金属被分离出来并吸入烤钵的墙上

The industry magnesia mainly uses in making the ceramics, the enamel, the fire-proof material and so on; In the polishing compound, the adhesive, in the paint manufacture takes the stopping; In the artificial fiber, the rubber (chloroprene rubber, fluorine rubber) make the promoter and the catalyst; Makes the antacid on the medicine in the laxative, uses in treating the hyperacidity, the stomach and duodenum ulcer; May take the hard sugar purification is the decolorant in the food processing, the ice cream pH value conditioner and so on; In the construction profession, the magnesia may the manufacturing contain the magnesium special cement and the heat preservation board and so on; The biggest use is serves as the fertilizer and domestic animal's feed in the agriculture, causes the plant and in the animal metabolism process principal element, when serves as cow's feed, may prevent because to lack nervous system function being out of balance which the magnesium causes, namely the so-called forage grass convulsion gets sick; Uses in the chemical industry making the metal magnesium and the magnesium chemical, like magnesium sulfate, magnesium chloride as well as other chemicals; Moreover also uses in the water treatment, the detergent which the flue was mad uses in the glass, the dye, the electric cable, the silcon steel industry, the uranium processing, the electronics industry, the insulation material industry, as well as uses in professions and so on petroleum chemical additive, casting, phenolic plastic.

工业氧化镁主要用于制造陶瓷、搪瓷、耐火材料等;在抛光剂、黏合剂、油漆的制造中作为填充料;在人造纤维、橡胶中作促进剂和催化剂;在医药上作抗酸剂于轻泻剂,用于治疗胃酸过多、胃和十二指肠溃疡病;在食品加工上可作为砂糖精制是的脱色剂,冰淇淋的pH值调节剂等;在建筑行业中,氧化镁可生产制造含镁特种水泥和保温板等;在农业上最大用途是用作肥料和牲畜的饲料,使植物和动物代谢过程中的主要元素,用作奶牛的饲料时,可防止因缺镁而引起的神经系统机能失调,即所谓牧草性痉挛病;在化学工业中用于制造金属镁和镁化学品,如硫酸镁、氯化镁以及其他化学品;另外也用于水处理,烟道气的洗涤剂用于玻璃、染料、电缆、硅钢工业、铀加工、电子工业、绝缘材料工业,以及用于石油添加剂、铸造、酚醛塑料等行业。

There is a relative shift in substrate utilization from CHO to fat and a better abdominal discomfortable when consumption of three days L-L meal.

连续三天进食L-L的CHO食物,运动后期底物消耗出现了由糖氧化供能转向脂肪氧化供能;连续三天的L-L的CHO食物,能够使运动员在运动中出现良好的腹部舒适状态。

Vitamin C can interrupt the process of melanin production could have been generated to prevent further oxidation of DOPA ammonia was reduced to dopa, and can reduce serum levels of copper oxide, affecting the activity of tyrosine plum, thereby interfering with the biosynthesis of melanin, if the want to make the skin and fair complexion, we might eat more foods rich in vitamin C such as tomatoes, oranges, lemons, hawthorn, citrus and so on.

维生素C能中断黑色素生成的过程本来是可以防止的多巴氨进一步氧化减少到多巴,并能降低血清铜氧化,影响酪氨酸梅的活性,从而与黑色素的生物合成,如果干扰是想使皮肤白皙,我们可能会吃更多的食物含有丰富的维生素C,如西红柿,橙子,柠檬,山楂,柑桔等。

Kiwi was able to play whitening, freckle role is one of the reasons for vitamin C can effectively inhibit skin dopa quinone oxidation, so that the skin pigment dark oxidized into the reduced light pigments, interference with the formation of melanin the prevention of pigmentation in order to maintain fair-skinned.

猕猴桃之所以能够起到美白、祛斑的作用,原因就是其中的维生素C能有效抑制皮肤内多巴醌的氧化作用,使皮肤中深色氧化型色素转化为还原型浅色素,干扰黑色素的形成,预防色素沉淀,从而保持皮肤白皙。

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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。

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