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    • 4. 发明公开
    • 탄소원 기질과 염기의 유가식 공급에 의한 유기산 제조 방법
    • 一种通过碳源基材和基料的填充进料生产有机酸的方法
    • KR1020130131022A
    • 2013-12-03
    • KR1020120054740
    • 2012-05-23
    • 에스케이이노베이션 주식회사에스케이에너지 주식회사
    • 박재연강신영박우찬구민수조인호박중민이승엽김동현
    • C12P7/40C12N1/20C12P7/52
    • C12P7/52C12P7/40C12P7/46C12P7/54C12P7/56C12N1/20
    • The present invention provides a fed-batch culture method comprising a step for feeding a carbon source and base by fed-batch culture to maintain the optimum pH for the growth of microorganism and a method for producing organic acid using the fed-batch culture method. According to the present invention, the optimum pH for survival of the organism to ferment the carbon source is maintained and the injection speed of the carbon source substrate, a base material, is adjusted accordingly at the same time by fed-batch feeding of a neutralizing agent such as ammonium bicarbonate or weak base containing alkali metal and a carbon source substrate when producing the organic acid by microorganism fermentation,thereby increasing the productivity, yield, and production intensity of the organic acid and improving the reliability and simplicity of fermentation process operation since the base and the carbon source are automatically injected depending on pH change. [Reference numerals] (AA) Top;(BB) Bottom;(CC) Empty space;(DD) Porous frit(top);(EE) Polymer;(FF) Porous frit(bottom);(LL) dipping;(MM) Steaming;(NN) Drying;(OO) Packaging
    • 本发明提供补料分批培养方法,其包括通过补料分批培养来进料碳源和碱的步骤,以保持微生物生长的最适pH和使用补料分批培养方法生产有机酸的方法。 根据本发明,保持生物发酵碳源的最佳生存pH值,同时通过补料分批供给中和物质来调整碳源基材(基材)的注射速度 通过微生物发酵生产有机酸时,如碳酸氢铵或含碱金属的弱碱和碳源底物,从而提高有机酸的生产率,产率和生产强度,提高发酵过程操作的可靠性和简便性,因为 根据pH变化自动注入碱和碳源。 (AA)顶部;(BB)底部;(CC)空间;(DD)多孔玻璃料(顶部);(EE)聚合物;(FF)多孔玻璃料(底部);(LL)浸渍; )蒸汽;(NN)干燥;(OO)包装
    • 6. 发明公开
    • 자일로스로부터 에탄올을 생산할 수 있는 재조합 효모 및 이를 이용한 에탄올 생산방법
    • 从XYLOSE生产乙醇的重组酵母和使用重组酵母生产乙醇的方法
    • KR1020150006709A
    • 2015-01-19
    • KR1020130080506
    • 2013-07-09
    • 에스케이이노베이션 주식회사에스케이에너지 주식회사
    • 이기성강경현박우찬김태완김성홍이태영
    • C12N1/19C12N15/53C12P7/06
    • Y02E50/17C12N15/81C12N9/0006C12N9/1205C12P7/06C12Y101/01009C12Y101/01307C12Y207/01017
    • The present invention relates to recombinant yeast capable of producing ethanol from xylose at a high yield. More specifically, the present invention relates to: the recombinant yeast into which a gene for coding xylitol dehydrogenase (XDH) derived from Spathaspora passalidarum, a gene for coding xylose reductase (XR), and a gene for coding xylulokinase (XK) derived from Pichia stipites are introduced; and a method for producing ethanol by using the same recombinant yeast. According to the present invention, the recombinant yeast does not accumulate xylitol, which is a byproduct, much and can produce ethanol at a high yield when the recombinant yeast produces ethanol from the cellulose-based biomass containing xylose much. Therefore, the recombinant yeast can be very advantageously used for producing cellulosic ethanol (CE). The method for producing ethanol includes the steps of: (a) producing ethanol by culturing the recombinant yeast on a badge containing xylose; and (b) obtaining ethanol produced by step (a).
    • 本发明涉及能够以高产率从木糖生产乙醇的重组酵母。 更具体地说,本发明涉及:用于编码来源于马齿苋(Spathaspora passalidarum)的木糖醇脱氢酶(XDH)的基因,用于编码木糖还原酶(XR)的基因)和用于编码来自毕赤酵母的木酮糖激酶(XK)的基因的重组酵母 介绍; 以及通过使用相同的重组酵母生产乙醇的方法。 根据本发明,当重组酵母从含有木糖的纤维素类生物质中产生乙醇时,重组酵母不会积累作为副产物的木糖醇,而且可以以高产率生产乙醇。 因此,重组酵母可非常有利地用于生产纤维素乙醇(CE)。 生产乙醇的方法包括以下步骤:(a)通过在包含木糖的徽章上培养重组酵母产生乙醇; 和(b)获得由步骤(a)生产的乙醇。