B - biocatalyst 中文 - EN166

biocatalyst n.生物觸媒，生物催化劑。adj.-lytic

Study of “ ph memory “ and activity water ( aw ) in processing of immobilization indicates that former factor has much effect on transformation and the latter just has little effect . permeabilization treating of baker ' s cell with alcohol and ultrasonic leads to lower transformation rate , which illustrates that permeabilization procedure has negative role on biotransformation with whole cell as biocatalyst in organic solvent . in simple dynamics research amount of biocatalysu concentration of substrate and reaction course are considered and all of them have remarkable effect on transformation Ph記憶、水活度及通透性處理的實驗結果表明， ph記憶對轉化有明顯的影響，水活度對模型反應的影響不大；作為完整細胞生物催化，細胞的通透性可能是傳質阻力的重要組成部分，利用不同濃度的乙醇和超聲波對細胞進行處理，結果表明，在有機相完整細胞生物催化中，通透性處理對轉化產生的是負面影響。
biocellate
Abstract : in this review , we describe the characteristics of biocatalysts , especially their regioselectivity and stereoselectivity . a brief introduction of their application s in different kinds of reactions was also given with the purpose of encouraging their further use in organic synthesis 文摘:本文綜述了生物催化劑的類型及特征，特別是它與化學催化劑相比具有顯著的特點：高效性和專一性；介紹了生物催化劑在不同有機反應中的應用，旨在鼓勵更多的化學工程者使用生物催化劑，使它們在未來的有機合成領域中發揮越來越大的作用。
As far as the enzymatic activity is concerned , on the one hand , strain yz - ii6 has higher d - hydantoinase activity and lower d - carbamoylase activity so as not to be suitable for one - step bioconversion of d - amino acids , on the other hand , the higher hydantoinase activity , engineered strain in particular , may be convenient to be as a biocatalyst to produce n - carbamyl d - amino acids which hard to find in the markets Yz - 6菌具有較高的海因酶活性，但n -氨甲酰基d -氨基酸酰氨水解酶活性很低，仍不適合用于d -型氨基酸生產工藝中的一步法轉化。另一方面，含海因酶基因的人工菌株不但酶活性高，也排除了天然菌株轉化生產d -型氨基酸過程中的一些副產物。
Biotransformation in organic solvent is an attractived field in nowadays . compared with isolated enzyme whole cell is not used broadly as biocatalyst . in this research the cells of baker ' s yeast is adopted to mediated a model reaction in organic solvent , in which geraniol is converted to citronellol reductively 有機相生物轉化是當前生物技術中一個具有理論研究意義和應用價值的領域，目前該領域的研究大多集中在利用分離的酶進行生物催化，利用微生物完整細胞進行的研究比較少。
Study of “ ph memory “ and activity water ( aw ) in processing of immobilization indicates that former factor has much effect on transformation and the latter just has little effect . permeabilization treating of baker ' s cell with alcohol and ultrasonic leads to lower transformation rate , which illustrates that permeabilization procedure has negative role on biotransformation with whole cell as biocatalyst in organic solvent . in simple dynamics research amount of biocatalysu concentration of substrate and reaction course are considered and all of them have remarkable effect on transformation Ph記憶、水活度及通透性處理的實驗結果表明， ph記憶對轉化有明顯的影響，水活度對模型反應的影響不大；作為完整細胞生物催化，細胞的通透性可能是傳質阻力的重要組成部分，利用不同濃度的乙醇和超聲波對細胞進行處理，結果表明，在有機相完整細胞生物催化中，通透性處理對轉化產生的是負面影響。
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。
During down processing biocatalyst several immobilization method are discussed and the result reveals that the method with alginate sodium as entrapment and cach as cross - linking reagent is best for the conversion , and the concentrate of those are 3 % and 0 . 6mol / l 進一步的研究表明，海藻酸鈉為3 (質量濃度) 、氯化鈣為0 . 6mol / l的情況下最有利于模型反應的進行。
The lipase b from candida antarctica ( cal - b ) displays high enantioselectivity on a broad range of substrates , making it an accepted biocatalyst for asymmetric organic chemistry 摘要從南極假絲酵母中提取的脂肪酶b ，具有較高的對應異構體選擇性，廣泛應用在培養基中，作為不對稱有機化學的生物催化劑。
Immobilized enzyme has been applied to numerous fields , including bioreactors , biocatalysts and biosensors because of its advantage such as good stability and reusability 固定化酶具有穩定性好，使用次數多等獨特優點，已被用于生物反應器，生物催化，和生物傳感器等眾多領域。
The result of using eight kinds of different yeast strain as biocatalyst reveals that baker ' s yeast is the best biocatalyst in this transformation 比較了八種酵母的生物轉化能力，發現在有機合成生物轉化中應用最廣泛的生物催化劑baker ' s酵母最適合催化該模型反應； 3
What enzyme / organism was used as the biocatalyst and how was it selected ? for a purified enzyme process , include the source organism for the enzyme 什么樣的酵素/生物被用來做為生物觸媒，且如何選擇?對于純化酵素的程序，則包括酵素的來源種屬。
The unconventional solvent properties of ionic liquids have been exploited in biocatalyst recycling and product recovery schemes 目前離子液體的溶解特性已在生物催化再循環和產品的回收方面得到了很好的應用。
Bacterial lipase is a kind of biocatalyst which is widely used in many industrial fields 摘要細菌脂肪酶是一類廣泛應用于工業領域的生物催化劑，具有重要的應用價值。