酰化的 的英文怎麼說

中文拼音 [huàde]
酰化的 英文
acidylating
  • 酰 : 名詞[化學] （酰基） acyl
  • 的 : 4次方是 The fourth power of 2 is direction
  1. Cyanide can serve as precursor for the amide nitrogen of asparagine.

    氰化物可以作一個天門冬酰胺的酰胺氮前體。
  2. E. coli xl1 - blue cells were tansformed by psurfpga and phages were rescued by m13ko7 helper phage particles. results showed that the heterodimeric enzyme was expressed as a fusion protein that matures to an active biocatalyst connected to the coat protein of phage fd

    以構建的噬菌粒psurfpga轉化具有琥珀突變的大腸桿菌xl1 - blue ，以輔助噬菌體m13k07超感染，進行青霉素g酰化酶基因的表達和在噬菌體表面的展示。
  3. Abstract : 1 - ( 4 - pyridinyl ) - 2 - propanone, which is the key intermediate of synthesizing the milrinone, a cardiotonic agent, was synthesized from 4 - methyl - pyridine by acetylation in dichloromethane and phase transition catalyzing hydrolysis. the overall yield was 73. 1 %

    文摘:報道了以4 -甲基吡啶為原料，經酰化和相轉移催化水解反應制備強心藥物米利酮關鍵中間體1 - （ 4 -吡啶基） - 2 -丙酮的新合成方法，總收率達73 . 1 %
  4. They may be mono, or triacylglycerols according to the number of ? oh groups esterified

    根據氫氧根離子酯化的數目為單，雙，三酰基的酯。
  5. Essential oils. determination of ester value after acetylation and evaluation of free alcohols and total alcohols content

    精油乙酰化后酯值的測定和游離醇與總醇含量的評估
  6. Essential oils - determination of ester values, before and after acetylation, and evaluation of the contents of free and total alcohols

    香精油.乙酰化前後酯值的測定和游離醇及總醇含量的評估
  7. Essential oils. determination of ester values, before and after acetylation, and evaluation of the contents of free and total alcohols

    香精油.乙酰化前和后酯值的測定和游離醇及總醇含量的評價
  8. Through precise theorization and extensive experimentation, yu - fen zhao and pei - sheng cao proved that the origin and life was n - phosphoryl histidine

    趙玉芬和曹培生用嚴密的理論和大量的實驗結果證明:磷酰化氨基酸是生命起源的種子。
  9. Studies of aminoacylase immobilized on macroporous resin

    固定化氨基酰化酶的研究
  10. Abstract : methanesulfonic acid method was used to prepare five acylated chitins. except heptanoyl chitin, four of them, i. e. acetyl chitin, propionyl chitin, butyryl chitin and hexanoyl chitin, had high degree of substitution ( from 1. 5 to 2. 0 ) and exhibited lyotropic liquid crystalline behavior and cholesteric phase. as the length of the side chain increased the critical concentration ( w / w ) somewhat increased from 0. 21 to 0. 26 because the chain rigidity dropped. the critical concentration values of all the four derivatives were much higher than that of chitin ( 0. 12 ) due to the decrease of intramolecular hydrogen bonds. the four acylated chitin can form typical banded texture after being sheared. there minimum concentrations to form banded texture of them were evidently different, varied from 0. 25 ( for acetyl chitin ) to 0. 37 ( for hexanoyl chitin ). these results further indicated that liquid crystallinity decreased while the length of flexible side substituents increased

    文摘:四種羧酰化甲殼素即乙酰化、丙酰化、丁酰化和己酰化甲殼素在二氯乙酸溶液中均呈現膽甾型溶致液晶相.臨界濃度隨側基長度增加而略有增加，衍生物的臨界濃度明顯都比原甲殼素高許多，這些規律都可以用鏈剛性的變化來解釋.四種羧酰化甲殼素在剪切時均能形成條帶織構，而且能形成條帶織構的最低濃度有明顯差別，隨側基長度增加而提高，進一步表明側基較長，液晶性減少
  11. Acylation activity of hydroxyl groups in methyl cholicate has been determined by the use of methacryloyl chloride, methacryloyl anhydride and methacrylic acid as the acylating agents

    以甲基丙烯酰氯、甲基丙烯酸酐和甲基丙烯酸作酰化劑，研究了膽酸甲酯分子中羥基的反應活性。
  12. Localizaton of activity of immobilized penicillin gacylase by x - ray microanalysis

    酰化酶活性的定位
  13. In this text, the developments of hydroformylation of methyl oleate and oleyl alcohol, as well as the reactions and applications of its final products were reviewed

    本文綜述了對化學工業具有潛在經濟價值的油酸甲酯和油醇的氫甲酰化反應的進展，並介紹了反應產物的應用前景。
  14. In the part, the author ' s intention is mensurating the molecular weight of the polypeptides by sodium dodecyl sulfate polyacrylamide gel electro - phoresis. the result shows that one of the polypeptides which we have mensurated is about 17, 000da. the conclusion is that the components which we have separated and purified are small molecule polypeptides. 5

    紅褐林蟻多肽蛋白質的分子量測定本部分旨在通過sds -聚丙烯酰胺凝膠電泳測出所得多肽蛋白質的相對分子量，測得其中一組分的相對分子量為17000da左右，結論為所分離、純化的物質是小分子的多肽。
  15. These issues are essential to the understanding of the nature of cell cycle control, and to elucidating the roles of the histone acetylation modification in cell cycle regulation in eukaryotes. in this thesis, we studied the mechanisms of histone acetylation in cell cycle regulation in physarum polycephalum, a naturally synchronized slime mold. the results of this study confirmed that histone acetylation changed the expression of proteins related with the regulation of checkpoint conversion in cell cycle

    初步確定了組蛋白乙酰化在多頭絨泡菌細胞周期各轉換點的調控過程中對細胞周期調控相關蛋白表達水平的調節作用；了解了組蛋白乙酰化修飾對細胞周期各轉換點調控的作用途徑；建立了組蛋白乙酰化修飾對多頭絨泡菌細胞周期調控機制的基本模型。
  16. Abstract : a novel enzymatic reaction ? ammonolysis was introduced in thenineties. this reaction not only provides a synthetically useful and mild alternative method for the synthesis of amides, but also can be used for the kinetic resolution of chiral alcohols or chiral carboxylic acids. in addition to enantioselective hydrolysis, esterification and transesterification, ammonolysis also shows high enantioselectivity in the resolution of racemates

    文摘:酶促氨解反應是20世紀90年代中期發現的一種新型反應，在脂肪酸酰胺的合成、手性藥物（手性酸及手性醇等）的拆分中顯示出巨大的應用潛力，是除立體選擇性水解、酯化、轉酯反應之外的另一具有較大開發應用前景的酶促新型反應。
  17. The major anthocyanins in purple sweet potato are cyanidin and peonidin acylated with aromatic acid

    其花色苷的主要類型為芳香酸酰化的矢車菊素和芍藥素。
  18. The influence of reaction time, reaction temperature and acetic anhydride volume on the degree of acetylation is discussed

    介紹了在用乙酸酐處理甲殼胺纖維制備再生甲殼素纖維過程中，反應溫度、乙酰酐用量對乙酰化的影響。
  19. Abstract : an imidazole - catalyzed acylation method of phthalic anhydride is applied to the determination of hydroxyl values of reinforcing agent is211. the analytical error is 5. 0 10 - 3. the relative standard deviation of the method is less than 0. 04 and its coefficient of variation is not more than 5. 0 10 - 3. hydroxyl values determined in different batch samples meet the design requirement completely. this method is rapid and simple, it is adaptable to conventional analysis

    文摘:以咪唑催化鄰苯二甲酸酐酰化的方法測定增強劑is211的羥值，準確度高，分析誤差為5 . 0 10 - 3 ；方法精密度好，標準偏差小於0 . 4 ，變異系數不大於5 . 0 10 - 3 ，測定不同批號試樣的羥值完全符合商標值，方法快速、簡便，適用於常規分析。
  20. Chitin is a natural polymer that has rich resources, its research and development have been paid much attention to in the world, the dea cetylation product of which - chitosan is widely used for its distinctive physico chemical and biological characteristics

    作為一種資源極其豐富的天然高分子化合物，甲殼素的研究與開發受到各國的普遍重視，其經脫乙酰化的產物- -殼聚糖因具獨特的物化及生物學特性而被廣泛應用。
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