脲基甲酸 的英文怎麼說
中文拼音 [jījiǎsuān]
脲基甲酸
英文
allophanate-
Furbenicillin sodium, a known semi - synthetic ureide type of antibiotic firstly marketed in china, was synthesized from starting material 2 - furaldehyde via six steps including oximation reaction, beckmann rearrangement, isocyannuration, amination, condensation and salification etc
摘要以呋喃甲醛為起始原料,經厲化、貝克曼重排、異氰脲酸化、氨基化、縮合和成鹽6步反應,合成了酰脲類青霉素抗生素呋布西林鈉。The rate of the coordination reaction between divalent metal ions and murexide in a water - in - oil microemulsion was determined by spectrophotometric technique to study the transport of the metal ions entrapped in the organogel formed by cationic surfactant cetyltrimethylammonium bromide
以微乳液中二價金屬離子與紫脲酸胺之間的配位反應為指示反應,採用分光光度技術,研究了金屬離子在由陽離子表面活性劑十六烷基三甲基溴化胺構建的微乳凝膠中的傳質問題。At the same time, we also can supply taed, thiourea, melamine, aluminum sulphate, titanium dioxide rutile and anatase, rubber accelerator, methyl cellulose, hydroxypropyl methyl cellulose, monoammonium phosphate and other phosphates, 2 - ethyl anthraquinone, etc
同時還可為客戶提供四乙酰乙二胺硫脲三聚氰胺硫酸鋁鈦白粉橡膠促進劑甲基纖維素羥乙基甲基纖維素羥丙基甲基纖維素,磷酸二氫銨2 -乙基蒽醌等十幾種優質化工品。Code of practice for thermal insulation of roofs externally by means of sprayed rigid polyurethane or polyisocyanurate foam
採用噴塗剛性聚氨基甲酸乙酯和聚異三聚氰脲酸酯泡沫對屋頂外部進行隔熱的實用規程Hydantoinases which consist of hydantoin hydrolase, n - carbamoylase and sometimes hydantoin racemase can hydrolyze d, l - 5 - substituted hydantoin into corresponding optically active amino acids. therefore, the hydantoinases from micro - organisms are widely applied to the industrial production of natural and unnatural amino acids. microbial hydantoinases are considered as industrial enzymes from the origin of life
乙內酰脲酶是廣泛存在於動物、植物和微生物的一類酶系,包括乙內酰脲水解酶( hydantoinhydrolase , hyuh )和n -氨甲酰基氨基酸水解酶( n - carbamoylase , hyuc ) ,有些情況下還包括乙內酰脲消旋酶( hydantoinracemase , hyur ) 。The l - n - carbamoylase of arthrobacter bt801, coded by the hyuc gene, is the rate - limiting and the only stereoselective enzyme. hydantoin hydrolase gene ( hyuh ) and n - carbamoylase gene ( hyu c ) were amplified from the plasmid of puc18 - 169 by pcr and, at the same time, activity expression was obtained in e. coli and pichia pastor is gs115 respectively
節桿菌bt801的乙內酰脲水解酶催化乙內酰脲類化合物水解開環, n -氨甲酰基氨基酸水解酶是該菌乙內酰脲酶系中惟一具有立體選擇性的酶,也是整個反應體系的限速酶。To improve the production and activity of the enzyme, the hydantoin hydrolase gene ( hyuh ) was cloned into e. coli m15 and bl21 ( de3 ) by using vector pqe60 and pt221 respectively. two expression plasmids were thus constructed
用pcr技術從質粒puc18 - 169中擴增出l -乙內酰脲水解酶基因( hyuh )和n -氨甲酰基氨基酸水解酶基因( hyuc ) ,分別在大腸桿菌和畢赤酵母中實現了活性表達。分享友人