螯合物化作用 的英文怎麼說

中文拼音 [áohuàzuòyòng]
螯合物化作用 英文
cheluviation
  • : 名詞(螃蟹等節肢動物的變形的第一對腳) chela; pincers
  • : 合量詞(容量單位) ge, a unit of dry measure for grain (=1 decilitre)
  • : 名詞1 (東西) thing; matter; object 2 (指自己以外的人或與己相對的環境) other people; the outsi...
  • : Ⅰ動詞1 (使用) use; employ; apply 2 (多用於否定: 需要) need 3 (敬辭: 吃; 喝) eat; drink Ⅱ名...
  • 物化 : materialization
  1. Dithiocarbamate [ s2cnr2 ( dtc ) ] and it ' s derivates were applied in chemistry 、 medical 、 petrochemical and other fields, it can coordinated with all kinds of transition metals, the anion of bidentate ligand also bridges two transition metals

    摘要氨荒酸鹽[ s2cnr2 ( dtc ) ]及其衍生早已廣泛應學、醫學、石油工等領域,它與所有的過渡金屬都可以進行配位,形成,雙齒的陰離子也可以為橋鏈兩個過渡金屬的配體。
  2. The recombinants were constructed by transforming ppic9 a - xynb into p. pastoris gs115. the assay results revealed that the xylanase gene xynb was overexpressed and secreted effectually in p. pastoris. in 3l fermentor the expression level of xylanase xynba exceeded 1200iu / ml and the expressed xylanase had normal bioactivity. the molecule weight of xynba was determined as about 31kd which is higher than 23kd of original enzyme xynb from streptomyces olivaceoviridis a1. xynbb was gotten by deglycasylation of xynba, whose molecule weight returned to 23kd. we comparised the enzymatic properties of xynba expressed in p. pastoris, xynbb deglycasylated from xynba and xynb produced from streptomyces olivaceoviridis al : there was little difference among the three enzymes on optimal ph, the optimal ph of xynb and xynba were both 5. 2, the optimal ph of xynbb was 5. 0 ; the optimal temperature of xynb and xynba were both 60 c, while the optimal temperature of xynbb was 50 ? ; because of glycosylation the thermal stability of xynba was better than xynb and xynbb ; the specific activity of xynba and xynbb were 883. 88iu / mg and 832. 5hu / mg respectively, which were both lower than 2814. 45iu / mg of xynb ; the km values of xynb and xynba were similar to each other which were 21. 56 ( g / kg ) and 20. 87 ( g / kg ), while the km value of xynbb was 27. 10 ( g / kg ) ; the fmax of xynba and xynbb were 4568umol / mg. min and 5329umol / mg. min respectively which were lower than 27623 umol / mg. min of xynb ; additionally all of the three enzymes did not display cellulase activity. they all had well resistance to pepsion and trypsin, and were not sensitive to metal iron, surface active agent and chelating agent. the analysis of different xylans enzymatic hydrolysate revealed : by xynba, that the main constitutions of enzymatic hydrolysate of birch wood xylans were xylotriose and xyloquaiose, which account for 68. 43 % and 16. 50 % respectively, additionally there was 11. 79 % of xylobiose ; the main constitutions of enzymatic hydrolysate of corncobs xylans were xylobiose and xylotriose, which account for 81. 78 % and 11. 55 %. the result indicated that this xylanase was a kind of 1, 4 - b - d - xylanohydrolase and was fit to used in industrial procession of xylooligosacc harides

    進一步對xynba進行了脫糖基處理得到xynbb ,其分子量恢復到23kd ,證明xynba是糖基蛋白。通過對畢赤酵母重組表達的木聚糖酶xynba 、脫糖基的木聚糖酶xynbb以及橄欖綠鏈黴菌a1所產原酶xynb之間酶學性質的比較發現:三種酶的最適ph差異不大, xynb和xynba均為5 . 2 , xynbb為5 . 0 ; xynb和xynba的最適溫度均為60 , xynbb降為50 :在耐熱性上, xynba由於糖基熱穩定性明顯高於未糖基的xynb和xynbb ; xynba和xynbb的比活性分別為883 . 88iu mg和832 . 51iu mg ,明顯低於原酶的比活2814 . 45iu mg ; xynb和xynba的km值相當,分別為21 . 56 ( g kg )和20 . 87 ( g kg ) ,而xynbb的km值較大為27 . 10 ( g kg ) ; xynba和xynbb的vmax相差不大,分別為4568 mol mg ? min和5329 mol mg ? min ,明顯低於xynb的27623 mol mg ? min此外三種酶均無纖維素酶活性,對胃蛋白酶和胰蛋白酶有很好的抗性,且對環境中的各種離子、表面活性劑、劑不敏感。通過對不同木聚糖的酶解產的糖份分析發現:以樺木木聚糖為底時,酶解產主要為木三糖和木四糖,含量分別為68 . 43和16 . 50 ,另外還含有11 . 79的木二糖;以玉米芯木聚糖為底時,酶解產主要為木二糖和木三糖,含量分別為81 . 78和11 . 55 。
  3. Edta ethylenediamine tetra - acetic acid, a compound that acts as a chelating agent, reversibly binding iron, magnesium, and other positive ions

    學名為乙二胺四乙酸,是一種具有,能夠可逆地結鐵離子、鎂離子以及其他正離子。
  4. Both the frequency and intensity of 1146. 0cm - 1 change largely, etc. discussed and compared the mechanism of these interaction in detail we got some conclusions as following : both zn2 + and cd2 + ions can chelate with po2 - and come into being - po2 - me2 + n7 ( purine ) chelate. as to zn2 + ions, when r2. 0, the quantity of po2 - zn2 + n7 is directly linear with r. when r2. 0, zn2 + ions even can chelate with c at n3 - o2 sites and this chelation will disrupt the h - bond between gc base pairs and make the dna structure unstable. as to cd2 + ions, only when r is within 1. 0 - 1. 5 can this chelation take place and the relation of the quantity of this chelate with r is not easy to conclude

    通過對這些變進行詳細討論和分析,我們得到了如下的結論: zn ~ ( 2 + )和cd ~ ( 2 + )都可以跟dna的磷酸基團,形成- po _ 2 ~ - … me ~ ( 2 + ) … n7 ( g ),但是前者的跟離子濃度有很大的關系,在摩爾濃度比小於2 . 0時,的生成量跟r成正比關系,而後者的跟離子的關系不是很明顯,只有當r處於1 . 0至1 . 5之間時,才能進行,並且的生成量跟r之間沒有很明顯的關系存在。
  5. This paper reviews the effects of al on photosynthesis, photoprotective systems, water use efficiency ( wue ), water content, carbohydrate content, mineral nutrition, organic acids, and nitrogen metabolism in plant shoot, and also the mechanisms of al detoxification ( chelation of al with small organic compounds, and isolating al in the some parts, which are insensitive to al, such as vacuoles or epidermal cells ) by al accumulators

    為此,本文綜述了鋁對植地上部光、光保護系統、水分利效率、含水量、碳水含量、礦質營養、有機酸和氮代謝的影響,並對富鋁植的解鋁毒機制(鋁與小分子有機酸和把鋁隔離在對鋁不敏感的表皮細胞和液泡內)進行了綜述。
  6. Effect of chelator on antiolidation of matter extraced from orange peel

    劑對桔皮中提取抗氧的影響
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