By using the superoxide radical system, hydroxyl radical system, H2O2 radical system, oxidation system of linolic acid induced by alkane radical and system of DPPH, the antioxidation activities of mulberry red pigment were studied and compared with VC.

采用超氧陰離子自由基體系、羥基自由基體系欧美一区爽爽午夜福利视频、過氧化氫自由基體系久久免费A级毛片、烷基自由基引發(fā)的亞油酸氧化體系及DPPH自由基體系對桑椹紅色素的清除自由基活性進(jìn)行了研究欧美超碰播色屋任你爽，并同VC進(jìn)行了比較亚洲综合第三页。

In the presence of cellobiose, CDH can reduce radical, 4-malimeido-TEMPO radical and Milled Wood Lignin radical, which indicates a wide variety of radical sustrate.

在纖維二糖存在條件下美女黄色网站99，CDH可以還原自旋加合物、氮氧自由基4-malimeideo-TEMPOT和磨木木素（Milled Wood Lignin激情国产手机视频在线观看，MWL）自由基曰批免费网站播放免费，表現(xiàn)了廣泛的自由基底物范圍。

The advantage of supercritical carbon dioxide used as an environmental medium in polymerization and reactions in supercritical carbon dioxide are described. It includes homogeneous free radical polymerizations, precipitation free radical polymerizations, dispersion free radical polymerizations, emulsion and inverse emulsion free radical polymerizations, cationic polymerizations, ring-opening polymerization, melt-phase condensation polymerizations, sol-gel polymerizations, polymer blend synthesis, catalytic chain transfer polymerizations, oxidative coupling polymerization, nitroxide-mediated radical dispersion, atom-transfer radical polymerization, reversible addition-fragmentation chain transfer polymerization, electrochemical polymerization, simultaneous one-pot combination of enzymatic and chemical polymerization, copolymerization of carbon dioxide used as monomer.

評述了ScCO2作為聚合反應(yīng)介質(zhì)的優(yōu)點日韩精品爆乳蜜桃视频在线，以及在ScCO2中可進(jìn)行的聚合反應(yīng)類型欧美操逼打开直接看的黄片，包括均相聚合、沉淀聚合、分散聚合高清A片一区、乳液及反相乳液聚合、陽離子聚合亚洲AV免费在线观看、開環(huán)聚合亚洲黄色视频在线观看你懂的、熔融態(tài)縮聚、溶液-凝膠聚合www.丝袜.com、聚合物混合合成少妇31p、鏈催化轉(zhuǎn)移聚合、氧化-偶合反應(yīng)聚合全免国内国外A片、氮氧自由基可控活性聚合操操操操操操黄片免费看、原子轉(zhuǎn)移自由基聚合、可逆加成-斷裂鏈轉(zhuǎn)移玖性殴美、電化學(xué)聚合最新高清麻豆AV在线播放、原子轉(zhuǎn)移聚合與酶催化開環(huán)聚合兩種活性聚合在ScCO2中同時聚合、二氧化碳作為原料共聚合等手机看片人人干日韩不卡z。

The radical scavenging activity of Laminaria japonica pigments was studied by the DPPH2,2-Diphenyl~(-1-picrylhydrazylassay. The total pigments showed a strong DPPH radical scavenging activity of 65.819% with the concentration of 0.52mg.ml~(-1). The DPPH radical scavenging activity of fucoxanthin was 19.85% with the concentration of 0.27mg.ml~(-1). The antimicrobial activity of pigment in Laminaria japonica was studied by the method of round paper. The results showed that the pigment extracts have activity against Escherichia coli, Pseudomonas aeruginosa, Saricina flava and Saccharomyes cerevisia. The antibacterial activity of total pigments for Saccharomyes cerevisia was the strongest with an inhibition diameter of 18.9 mm; and the antibacterial activity of fucoxanthin for Saricina flava was also much significant with an inhibition diameter of 10.2 mm.

測定了它們對自由基的清除率和對四種細(xì)菌的抑菌效果樱花草黄色一级视频，研究結(jié)果表明，總色素和褐藻黃素的濃度與自由基清除率成正比色玖玖在线，當(dāng)總色素濃度為0.52mg.ml~(-1)時com.在线久久特，清除率達(dá)到65.819%，高于陸生植物黑米色素和紫甘薯色素高潮毛片无遮挡高清视频播放；當(dāng)褐藻黃素濃度為0.27mg.ml~(-1)時ww.黄色视频，自由基清除率達(dá)到19.85%，低于紫蘇色素日本乱伦精品网、紫甘藍(lán)色素国产一级特黄大片色视频泰斯特、黑米色素、紫甘薯色素人操人免费视频；對大腸桿菌国产日产美产精品久久久久久久、綠膿桿菌、八疊球菌免费女人18毛片a级毛片视频、金黃葡萄球菌的抑菌實驗結(jié)果顯示三级片网站资源，海帶總色素對金黃葡萄球菌的抑菌活性最強(qiáng)，抑菌圈直徑為18.9mm日韩欧美精品A片免费看；褐藻黃素對八疊球菌的抑菌活性相對較強(qiáng)花蝴蝶在线观看免费中文版，抑菌圈直徑為10.2mm。

Polyphenol compounds were extracted from the sorghum groats by water and methanol. Total phenolic content, reducing power, chelating activity, DPPH radical scavenging activity, ABTS radical cation scavenging activity and inhibition of hydroxyl radical-mediated 2-deoxy-D-ribose degradation of the extracts from the sorghum groats were determined.

以水和甲醇為溶劑提取高粱籽粒中的多酚類化合物H视频在线观看免费网站，測定了提取物中的總酚含量女人高潮被爽到呻吟视频、還原力、Fe~(2+)絡(luò)合能力以及提取物對DPPH国产精品无码免费观在线、ABTS国产午夜久久青草网站、羥基自由基的清除能力国产高清肏屄AV。

Goal compound synthesis namely: Take the vanillic acid as outset raw material, obtains 4- hydroxyl - 3- anisole methyl formate with the methyl alcohol reflux conditions, then after the etherification, the nitration, the return to original state, the ring closure response obtains 6- methoxy - 7- animal pen oxygen radical kui zuo lin - 4- alkone, then passes through the chlorination, the substitution aniline, to escape responses again and so on animal pen oxygen radical, etherification to obtain the goal compound; The goal compound and the diethylamine had the amine substitution reaction to obtain TM1, namely 4- benzene amino - 6- methoxy - 7- [2- hydroxyl - 3-(N, N- two ethyl aminos) third oxygen radical] kui zuo lin; Through zuo has the etherification with the Austria niter to respond obtains TM2, namely 4- benzene amino - 6- methoxy - 7- [2- hydroxyl - 3-(2- methyl - 5- nitryl imidazole) third oxygen radical] kui zuo lin.

目標(biāo)化合物的合成即：以香草酸為起始原料，與甲醇回流條件下得到4-羥基-3-甲氧基苯甲酸甲酯170黄色网站www，然后經(jīng)過醚化日韩欧美啪啪一中文字暮、硝化、還原人人夜夜揉r精品国产、環(huán)合反應(yīng)得到6-甲氧基-7-芐氧基喹唑啉-4-酮日本久久枸一，然后再經(jīng)氯化、取代苯胺黄片AA片播放久久久、脫芐氧基黄色视频射了网站、醚化等反應(yīng)得到目標(biāo)化合物；目標(biāo)化合物與二乙胺發(fā)生胺取代反應(yīng)得到了TM1国产在线黄色网站，即4-苯氨基-6-甲氧基-7-[2-羥基-3-丙氧基]喹唑啉国内a片在线视频；通過與奧硝唑發(fā)生醚化反應(yīng)得到TM2，即4-苯氨基-6-甲氧基-7-[2-羥基-3-(2-甲基-5-硝基咪唑)丙氧基]喹唑啉免费毛片一区。

The main results are as follows.1. The UV-visible absorption spectra, the spin-trapping EPR measurements, and the DPA (9,10-diphenylanthracene) bleaching experiments showed that (1) HB-Net exhibits much improved light harvesting efficiency in the phototherapeutic window (600-900 nm) as the result of its remarkable absorption red shift with respect to HB;(2) HB-Net remains the generation abilities of semiquinone anion radical, superoxide anion radical, hydroxyl radical, and singlet oxygen, but with much lower efficiencies than that of HB, most likely due to its very short triplet excited state lifetime.

設(shè)計合成了寡聚吡咯酰胺修飾的竹紅菌乙素衍生物HB-Net爱爱免費视频网址，利用紫外-可見吸收光譜、自旋捕獲技術(shù)和DPA光漂白法詳盡比較了HB-Net與HB的光動力性質(zhì)99re在线观看视频，發(fā)現(xiàn)：(1) HB-Net的吸收光譜較HB有顯著紅移久久思思热视频，在光療窗口的吸光能力明顯提高；(2) HB-Net能夠產(chǎn)生半醌負(fù)離子自由基在线国产馆、超氧負(fù)離子自由基无码高清性爱、羥基自由基和單重態(tài)氧，但由于其短的三重態(tài)壽命国产福利在线观看，這些活性物種的產(chǎn)生能力均弱于HB.2特级婬片欧美高清视频。

And the mechanism of ATRP is discussed from the view of complex-catalytic reaction. It is deduced that the active center in ATRP is not pure radical but complex active center, which maybe a complex with radical and complex ion. The structure of active center may have a "bridge"structure formed through propaganating radical and transition metal ion, and the active center exists in a"cage"generated by ligand-transition metal ion-organic halide and monomer or solvent.

論文運用基團(tuán)貢獻(xiàn)理論對一些實驗現(xiàn)象和結(jié)果進(jìn)行了討論和分析，并結(jié)合研究結(jié)果對絡(luò)合催化引發(fā)原子轉(zhuǎn)移自由基聚合反應(yīng)的機(jī)理進(jìn)行了初步的探討国产亚洲日韩精品超碰，認(rèn)為：過渡金屬化合物與有機(jī)配體參與的絡(luò)合催化引發(fā)原子轉(zhuǎn)移自由基聚合反應(yīng)中久久成本大片免费播放，聚合反應(yīng)的活性中心不是純粹的自由基活性中心，而是與過渡金屬相結(jié)合的午夜a一级毛片视频网站在线免费观看、有著某種"籠"結(jié)構(gòu)存在的復(fù)合式活性中心亚洲免费视频在线播放，同時該活性中心以自由基特性為主，同時兼具某種程度的其它活性中心特征（如陽離子和絡(luò)合聚合活性中心）老熟妇伦乱一区二区。

To get more insight into the mechanism and kinetics of the RAFT process,it would be helpful to build a small molecular model reaction mimicking the RAFT process but free of a chain-propagation event. We hereby propose a model cross reaction between dithioester and alkoxyamine as a probe of the RAFT process,in which the alkoxyamine plays the role of the radical source.The generating rate of the transient alkyl radical and the nitroxyl radical can be described by the law of persistent radical effect.Thus,the advantage of the model cross reaction is that it affords a radical concentration determined by the known equation of the persistent radical effect.

為了更深入的理解RAFT聚合過程激情性爱国内自拍，我們構(gòu)建了一個模型反應(yīng)：即由烷氧基胺與雙硫酯進(jìn)行交換反應(yīng)，烷氧基胺均裂產(chǎn)生的烷基自由基將會向雙硫酯進(jìn)行鏈轉(zhuǎn)移免费av黄色录像免费的黄色录像，雙硫酯的引入對純烷氧基胺分解動力學(xué)造成的影響可以提供RAFT過程的許多信息视频一区二区男人的天堂国产大片免费。

The paper studied the scavenging active oxygen radicals of brown pigment from chestnut shell. The results showed that the brown pigment had scavenging effects on hydroxyl radical, superoxide anion radical and aliphatic radicals on lipid-peroxidation. In the range of test concentration, the maximum scavenging or inhibition rate of the brown pigment to hydroxyl radical generated by Fenton reaction, superoxide anion radical generated by illuminating riboflavin system and linoleic acid auto-oxidation was 83.0%, 82.1% and 88.5% respectively.

從清除羥基自由基和超氧陰離子自由基、抗脂質(zhì)過氧化以及還原能力等方面對板栗殼棕色素的抗活性氧自由基進(jìn)行了試驗研究和評價，結(jié)果表明：板栗殼棕色素對Fenton反應(yīng)產(chǎn)生的羥基自由基和光照核黃素產(chǎn)生的超氧陰離子自由基均具有較強(qiáng)清除作用一级aa片视频，對脂質(zhì)過氧化過程中產(chǎn)生的脂自由基和脂過氧化自由基有明顯的抑制作用黄色视频在线观看aaaa级，且在試驗濃度范圍內(nèi)，其最大清除率或抑制率分別可達(dá)到83.0%亚洲欧美国产色图、82.1%和88.5%欧美成三级。