芳族酸 的英文怎麼說
中文拼音 [fāngzúsuān]
芳族酸
英文
aromatic acid-
The enzyme 5 - enolpyuvyl - 3 - phosphoshikimic acid synthase ( epsp synthase ; ec2. 5. 1. 19 ), encoded by anoa locus, is a key enzyme present in microorganisms and plants where it has a function in the biosynthesis of aromatic amino acids. glyphosate ( n - phosphonomethyl - glycine ) is an effective non - selective, broad spectrum, postemergence herbicide, which has been shown to inhibit epsp synthase activity in a competitive manner. glyphosate tolerant plants can be mediated by either overproduction of the target enzyme or by the presence of an altered enzyme
植物和微生物芳香族氨基酸生物合成過程中的一個關鍵酶? ? 5 -烯醇丙酮莽草酸- 3 -磷酸合成酶( epspsynthase ; ec2 . 5 . 1 . 19 )由aroa基因編碼,該酶受廣譜滅生性、內吸傳導型除草劑草甘膦的競爭性抑制,將epsp合成酶基因轉入植物中可獲得草甘膦耐受植株。The results show that the chemosensor exhitits selective fluorescent quenching in the presence of aromatic organic acid in acetonitrile solution, and that the binding ability of the chemosensor with organic acid is in the order of p - cyanic - benzyl acid > p - chloric - benzyl acid > p - methoxyl - benzyl acid > benzyl acid
結果表明,所合成的熒光分子在乙腈溶液中能選擇性識別芳香族有機酸,表現出熒光淬滅現象,其與有機酸絡合能力的大小依次為:對氰基苯甲酸對氯苯甲酸對甲氧基苯甲酸苯甲酸。The biochemical reaction in liquor - making mainly included the degradation of macromolecular substances such as the degradation of amylum and protein, the biochemical changes of micromolecular substances such as glycolysis of glucose ( emp approach ) and reconvertion of pyruvic acid, and the formation of flavoring substances such as the production of higher organic alcohol, maillard reaction, and the formation of aromatic compounds
白酒釀造過程中的生物化學反應主要包括:大分子物質的降解,如澱粉的降解和蛋白質的降解;小分子物質的變化,如葡萄糖的酵解( emp途徑)和丙酮酸的再轉化;香味物質的生成,如高級有機醇生成、美拉德反應和芳香族化合物的形成。Fifty - one and nineteen compounds were detected respectively from the volatile extracts of the fossils from miocene leaves of metasequoia glyptostroboides and early cretaceous seed cone of pityostrobus spp. by gas chromatography - mass spectrometry ( gc - ms ) analysis
摘要採用氣相色譜質譜聯用分析技術從中新世水杉葉片和白堊紀松型球果兩種裸子植物化石中分別鑒定了51個和19個揮發性成分,類型涉及烷烴、烷烯、烷醇、長鏈脂肪酸及其酯、鄰苯二甲酸酯、菇類和芳香族化合物。Aromatic metabolites such as tryptophan, phenylalanine, tyrosine which can only be synthesized by plants and microbes are essential amino acids for human and animals
芳香族氨基酸包括酪氨酸、苯丙氨酸和色氨酸,是人體和動物體內的必需氨基酸。Quinic acid is one of aromatic small compounds, it has widely been used as the important raw material in the fields of medicine, food and chemical industry
奎尼酸是重要的芳香族小分子化合物之一,在醫藥、食品、化工領域有著廣泛的應用。Aromatic sulphonic acid
芳香族磺酸Vulnerable to oxidation and turns red. possesses properties of both aromatic acid and amine
2 )易氧化成紅色,同時具有芳香族酸類及胺的性質。In microorganisms and plants the first step in the aromatic acid biosynthetic pathway is the condensation of pep and e4p, with the release of the phosphate of pep and the formation of dahp
在細菌和植物中,由公共途徑莽草酸途徑以及三個專一性途徑分別合成苯丙氨酸、酪氨酸和色氨酸三種芳香族氨基酸。The common biosynthesis pathway of aromatic amino acids includes seven steps from dahp to chorismate acid. for the common pathway, 3 - dehydroquinate ( dhq ) synthase ( encoded by arob ), 5 - enolpyruv - oylshikimate s - phosphate ( epsp ) synthase ( encoded by aroa ), and chorisma - te synthase ( encoded by aroc ] are rate - limiting enzymes
芳香族氨基酸的合成步驟有七步是共同的,亦即從dahp到分支酸的合成步驟,其中脫氫奎寧酸合成酶( arob ) 、 5 -烯醇式丙酮酰莽草酸合成酶( aroa )和分支酸合成酶( aroc )是此代謝途徑的關鍵酶。Chorismate acid is branch point in aromatic amino acids biosynthesis, related to phenylalanine, bifunctional enzymes chorismate mutase / prephenate dehydratase ( encoded by phea ) is rate - limiting enzyme
分支酸是芳香族氨基酸合成途徑的分支點,與苯丙氨酸合成有關,雙功能酶分支酸變位酶-預苯酸脫水酶( phea基因編碼)是關鍵酶。So it has increasing commercial demand. escherichia coli and many other microoganism synthesize aromatic amino acids through the condensation reaction between phosphoenolpyru vate ( pep ) and erythrose - 4 - phosphate ( e4p ) to form 3 - deoxy - d - arabinohep tulosonate 7 - phosphate ( dahp ). pep and e4p are limiting substrates for formation of dahp
大腸桿菌和許多微生物一樣,其合成芳香族氨基酸的起始物是由磷酸烯醇式丙酮酸( pep )和4 -磷酸赤癬糖( e4p )二者縮合形成的3 -脫氧- -阿拉伯庚酮糖酸- 7 -磷酸( dahp ) 。The inclusion behaviors of b - cyclodextrin with some aromatic amino acids such as l - phenylalanine, l - tyrosine and l - tryptophan were studied via ultraviolet and fluorescent spectrometry. the results indicated that inclusion complexes of - cyclodextrin with aromatic amino acids could be formed and the inclusion behaviors were affected by the amount of - cyclodextrin, temperature and ph value
本文研究了?環糊精與芳香族氨基酸l ?苯丙氨酸、 l ?酪氨酸和l ?色氨酸之間的包合作用,考察了?環糊精用量、溫度、時間和ph值等因素對包合作用的影響。The 1 : 1 inclusion complexes of - cyclodextrin with phenylalanine and tyrosine were formed ; but 2 : 1 complex was afford from - cyclodextrin with tryptophan owing to the various sites and chaps of different amino acids. the inclusion behaviors of - cyclodextrin and its polylactide - garfted copolymer with insulin were also studied via ultraviolet and fluorescent spectrometry
隨著?環糊精用量的增加和作用時間的延長, ?壞糊精對芳香族氨基酸的包合作用增強,揭示了?環糊精與芳香族氨基酸包合物在水溶液中的形成是一動態平衡過程。Immersion service in aromatic or ketone solvents and strong oxidizing acids
不宜在芳香族和酮類溶劑以及強氧化性酸的浸泡環境中使用。Nomex ( aramid ) : asphalt plants, chemical plants, cement plants, high resistance to heat, high wetness resisting temperature
諾美克斯(芳族聚酸胺) :瀝青工廠,化工廠,水泥工廠;高抗熱性,高耐潮性。When both genes were co - expressed in e. coli, the activity of ppsa varied from 2. 1 - 9. 1 fold comparing to control, but the activity of tkta was relatively stable ( 3. 9 - 4. 5 fold ). whatever the two genes were expressed respectively or cooperatively, both could promote the production of dahp, the first intermediate of the common aromatic pathway, but co - expression was more effective on forming dahp and screened ppt - and ptp - as more effective. the results demonstrate that co - expression of ppsa and tkta can improve the production of dahp, and what ' s more, when multigenes co - expressed, the recombinant which has coordinated enzymes activity is optimum
莽草酸途徑的最優化和整體調控基因csra的敲除正是上述改變的分子基礎,同時也為三種芳香族氨基酸的基因工程菌的構建打下了基礎; 7 .在國內外首次實現了共同途徑限制性底物關鍵酶ppsa刁無『及arog與分支途徑關鍵酶基因phea的串聯高效表達,所構建的重組質粒ptga ,其ppsa 、 tkta 、 arog 、 cm和pd的酶活分別比對照提高了3 、 2 、 2 , 5 、 4 、 2 . 3倍,且其酶活比較協調一致; 8 .將ptga導入到篩選的基因敲除和基因替換菌株大腸桿菌31884 c甲b中,搖瓶發酵證實比以往所構建的基因工程菌株具有較高的phe產量和糖轉化率率,分別為0 . 448 %和22 . 4 % 。The product chorismate of this pathway is precursor to the synthesis of the aromatic amino acids phenylalanine, tyrosine, and tryptophan as well as other essential aromatic secondary metabolites such as ubiquinone, menaquinone and vitamin k. phosphoenolpyruvate and shikimate 3 - phophate are converted to 5 - enolpyruvlshimimate - 3 - phosphate and phosphate
芳香族氨基酸苯丙氨酸、酪氨酸、色氨酸和其它一些必需代謝物如泛醌、維生素k2類、維生素k的起始物是莽草酸途徑所產生的分枝酸。The polymer ic effects of polylactide - garfted copolymer of - cyclodextrin, including cooperation effect, neighboring effect and polymer chain effect were discussed
總之, ?環糊精與這三種芳香族氨基酸之間的包合是多種因素協同作用的綜合效果。Test method for polyurethane raw materials : determination of acidity in low acidity aromatic isocyanates and polyurethane prepolymers
聚氨基甲酸乙酯原材料試驗方法:低酸性芳族異氰酸鹽酯和聚氨基甲酸乙酯預聚物酸度的測定分享友人