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    • 1. 发明授权
    • 유청을 이용한 숙신산의 생산방법
    • 从乳清制备琥珀酸的方法
    • KR100301960B1
    • 2001-09-22
    • KR1019990012852
    • 1999-04-12
    • 한국과학기술원
    • 장호남이상엽이평천이우기권선훈
    • C12P7/40
    • 본발명은낙농산업에서나오는폐기물인유청을배양원료로포함하는배양배지에숙신산발효미생물을접종하고, 회분식또는연속식배양과정을통해배양시킴으로써, 숙신산을고수율및 고생산성으로생산할수 있는유청을이용한숙신상의생산방법에관한것이다. 본발명의유청을이용한숙신산의생산방법은, 유청또는유당을배양원료로포함하는배양배지에숙신산발효미생물을접종하여배양하고, 전기배양물로부터숙신산을수득하는공정을포함하는숙신산의생산방법이다. 본발명에의하면, 연속식배양의경우, 93%의수율과 1.35g/L/h의생산성인고효율로숙신산을유청으로부터생산할수 있다. 또한, 유청을배양원료로이용하기위해서는한외여과또는가수분해등의전처리과정이필요하였으나, 본발명에서는이를거치지않고바로배양원료로이용할수 있어, 생산공정상원가절감에도기여할수가있으며, 유청은현재일부분이사료등으로재사용되고나머지는버리게되어환경문제를야기하는바, 본발명은이러한유청을이용하여현재대부분화학공정에의해생산되는숙신산을생산할수 있기때문에더욱그 가치가높다고할 수있다.
    • 2. 发明公开
    • 유기산의 고효율 생산방법
    • 有效生产有机酸的方法
    • KR1020000066159A
    • 2000-11-15
    • KR1019990013041
    • 1999-04-13
    • 한국과학기술원
    • 장호남장용근권선훈이우기이평천유익근임성진
    • C12M1/00
    • C12P7/46C12M23/58C12M29/18C12M41/26C12P7/40C12P7/42C12P7/48
    • PURPOSE: A process for efficiently producing organic acid by continuously fermenting organic acid fermentation microorganisms in a cell recirculation multistage continuous fermenter and recovering organic acid from the culture solution is provided which reduces equipment and production costs and promotes productivity. CONSTITUTION: An organic acid-fermentable microorganism is fermented in a cell recirculation multistage continuous fermenter connected in series a fermenter comprising a fermentation tank, a temperature controller, an agitator and a pH controller, a circulation pump for circulating fermentation mediums from the fermenter to the outside and a cell separator for separating the fermentation mediums and recirculating. The process can be applied to a fermentation process for producing lactic acid, acetic acid, formic acid, citric acid, malic acid, maleic acid, fumaric acid or succinic acid that shows productivity reduction by final products.
    • 目的:提供一种通过在细胞再循环多级连续发酵罐中连续发酵有机酸发酵微生物并从培养液中回收有机酸有效生产有机酸的方法,其降低了设备和生产成本并提高了生产率。 构成:将有机酸可发酵微生物在连续发酵的细胞再循环多级连续发酵罐中发酵,发酵罐包括发酵罐,温度控制器,搅拌器和pH控制器,循环泵,用于将发酵培养基从发酵罐循环到 外部和用于分离发酵培养基并再循环的细胞分离器。 该方法可用于产生乳酸,乙酸,甲酸,柠檬酸,苹果酸,马来酸,富马酸或琥珀酸的发酵方法,其显示最终产物的生产率降低。
    • 6. 发明公开
    • 콩 유래 성분을 이용한 젖산의 생산방법
    • 使用从贝类衍生的成分的乳酸的生产方法
    • KR1020000073826A
    • 2000-12-05
    • KR1019990017375
    • 1999-05-14
    • 한국과학기술원
    • 장호남장용근권선훈최동원이평천임성진이우기
    • C12N1/00C12N1/20
    • PURPOSE: Provided is a production method of lactic acid using a culture medium containing components, which are derived from beans. Thereby, high concentration of lactic acid is produced with low production cost. CONSTITUTION: A production method of lactic acid(2-hydroxypropionic acid) is characterized by comprising the following steps: (i)inoculating and culturing lactic acid fermentation microorganism in culture medium, which comprises components such as bean powder, bean protein and hydrolysat of the bean protein, derived from beans, and also vitamin; (ii) collecting lactic acid from the culture. 1 liter of culture medium contains 5-300g of components based on 1kg of carbon source content and also comprises 0.1 microg-10mg of vitamin which selected from the group consisting of vitamin B1, vitamin B2, vitamin B6, biotin, nicotinic acid, and aminobenzoic acid. The microorganism in particular, Bacillus, Lactobacillus, Lactococcus or Streptococcus sp., is cultured at 35-45°C of temperature, pH5.0-6.5 by anaerobic fed batch culture or continuos culture.
    • 目的:提供使用含有来自豆的成分的培养基的乳酸的制造方法。 由此,生产成本低,乳酸浓度高。 构成:乳酸(2-羟基丙酸)的制造方法的特征在于包括以下步骤:(i)在培养基中接种培养乳酸发酵微生物,其包括豆粉,豆蛋白和水解产物的组分 来自豆类的豆蛋白,以及维生素; (ii)从培养物中收集乳酸。 1升培养基含有5-300克基于1千克碳源含量的组分,还含有0.1微克10mg的维生素,其选自维生素B1,维生素B2,维生素B6,生物素,烟酸和氨基苯甲酸 酸。 微生物特别是芽孢杆菌属,乳杆菌属,乳球菌属或链球菌属,通过厌氧分批培养或连续培养在35-45℃的温度,pH5.0-6.5下培养。
    • 7. 发明公开
    • 글리세롤을 이용한 숙신산의 생산방법
    • 使用甘油生产脂肪酸的方法
    • KR1020010002820A
    • 2001-01-15
    • KR1019990022830
    • 1999-06-18
    • 한국과학기술원
    • 이상엽장호남이평천이우기
    • C12P7/40
    • PURPOSE: A method for producing succinic acid using glycerol is provided, thereby acetic acid, which is generally produced as a byproduct in production processes of succinic acid using glucose, can be remarkably inhibited, so that the production costs can be lowered. CONSTITUTION: The succinic acid is produced by batch culturing microorganism selected from Anaerobiospirillum succiniciproducens, Succinivibrio dextrinosolvens, Fibrobacter succinogenes, or Ruminococcus flavefaciens, preferably Anaerobiospirillum succiniciproducens in a medium. The medium comprises 5-30g of glycerol and 1-15g of yeast extract per 1L thereof, and is suitable for culturing anaerobic microorganisms. The culture is carried out at the temperature of 35 to 42 deg.C, preferably 37 to 40 deg.C, and most preferably 39 deg.C, and at pH 6.0 to 7.5, with supplying carbonic acid gas at a flow rate of 0.25 to 0.5 vvm.
    • 目的:提供使用甘油制备琥珀酸的方法,由此可以显着抑制通常在葡萄糖的琥珀酸生产方法中作为副产物生产的乙酸,从而可以降低生产成本。 构成:琥珀酸是通过在培养基中分批培养选自以下的微生物来制备的:微生物:Anaerobiospirillum succiniciproducens,Succinivibrio dextrinosolvens,Fibrobacter succinogenes或Ruminococcus flavefaciens,优选Anaerobiospirillum succiniciproducens。 该培养基每1L含有5-30g甘油和1-15g酵母提取物,适用于培养厌氧微生物。 在35〜42℃,优选37〜40℃,最优选39℃,pH 6.0〜7.5的温度下进行培养,以0.25的流量供给碳酸气体 至0.5vvm。
    • 8. 发明公开
    • 목질계 당화액을 이용한 숙신산의 생산방법
    • 使用木素水解产物制备磺酸的方法
    • KR1020020005200A
    • 2002-01-17
    • KR1020000034836
    • 2000-06-23
    • 한국과학기술원
    • 장호남이상엽장용근이평천이우기
    • C12P7/40
    • PURPOSE: Provided is a method for cheaply producing succinic acid using purified wood hydrolysate as a carbon source. CONSTITUTION: The succinic acid is produced by inoculating a microorganism capable of fermenting the succinic acid into a medium containing wood hydrolysate as a carbon source; and fermenting the medium, in which the wood hydrolysate is obtained by processing wood, minutely cutting the wood, and digesting the wood with cellulase to convert cellulose into glucose; the nitrogen source of the medium is polypeptone, yeast extract or corn steep liquor; the microorganism capable of fermenting the succinic acid is Anaerobiospirillum succiniciproducens(ATCC 29305); and the fermentation is carried out under conditions of 30 to 50 deg.C, pH 6.0 to 7.0 and 0.1 to 0.4vvm of carbon dioxide-providing rate.
    • 目的:提供使用纯化木素水解产物作为碳源廉价生产琥珀酸的方法。 构成:琥珀酸通过将能够将琥珀酸发酵的微生物接种到含有木质水解产物作为碳源的培养基中而制备; 并通过木材加工得到木材水解产物,微细切割木材,并用纤维素酶消化木材以将纤维素转化为葡萄糖; 培养基的氮源为多胨,酵母提取物或玉米浆; 能够发酵琥珀酸的微生物是厌氧菌(Anaerobiospirillum succiniciproducens)(ATCC 29305); 发酵在30〜50℃,pH6.0〜7.0和0.1〜0.4vvm的二氧化碳提供率的条件下进行。
    • 9. 发明授权
    • 글리세롤을 이용한 숙신산의 생산방법
    • 使用甘油生产脂肪酸的方法
    • KR100313134B1
    • 2001-11-05
    • KR1019990022830
    • 1999-06-18
    • 한국과학기술원
    • 이상엽장호남이평천이우기
    • C12P7/40
    • 본 발명은 유류산업(oil industry)에서 나오는 폐기물인 글리세롤 (glycerol)을 배양원료로 포함하는 배양배지에 숙신산 발효미생물을 접종하고, 회분식 배양과정을 통해 배양시킴으로써, 숙신산을 고수율 및 고생산성으로 생산할 수 있는 글리세롤을 이용한 숙신산의 생산방법에 관한 것이다. 본 발명의 글리세롤을 이용한 숙신산의 생산방법에 의하면, 높은 수율로 숙신산을 글리세롤로부터 생산할 수 있으며, 통상 포도당을 이용하여 숙신산을 생산시에 생성되는 부산물인 초산의 생성을 획기적으로 억제할 수 있음은 물론, 숙신산 정제시에 원가절감 등의 기여를 할 수 있다. 또한, 글리세롤은 현재 유류산업 등에서 과잉으로 생산되는 부산물로서 이에 대한 재사용의 필요성이 대두되고 있는 바, 본 발명은 이러한 글리세롤을 이용하여 현재 화학공정으로 생산되고 있는 숙신산을 생산할 수 있기 때문에, 더욱 그 가치가 높다고 할 수 있다.
    • 10. 发明授权
    • 대장균과 로도코커스에서 상호복제가 가능한 셔틀벡터
    • SHUTTLE VECTOR
    • KR100260098B1
    • 2000-07-01
    • KR1019970066841
    • 1997-12-09
    • 한국과학기술원
    • 이상엽이평천장호남최승필
    • C12N15/70
    • PURPOSE: A shuttle vector being capable of replicating in both E. coli and Rhodococcus is provided which has small size and can be effectively used in cloning the various genes derived from Rhodococcus. CONSTITUTION: The shuttle vector pEKSH being capable of replicating in both E. coli and Rhodococcus contains DNA replication origin of E. coli; DNA replication origin of Rhodococcus rhodochrous; ampicillin resistance gene being capable of expressing in E. coli; and kanamycin resistance gene being capable of expressing in Rhodococcus rhodochrous. A transformant Rhodococcus rhodochrous ATCC12674/pEKSH (KCTC 8827P) is produced by transforming Rhodococcus rhodochrous (ATCC12674) with the shuttle vector pEKSH.
    • 目的:提供能够在大肠杆菌和红球菌中复制的穿梭载体,其具有小尺寸并且可以有效地用于克隆源自红球菌的各种基因。 构成:能够在大肠杆菌和红球菌中复制的穿梭载体pEKSH含有大肠杆菌的DNA复制起点; 玫瑰色红球菌的DNA复制起点; 氨苄青霉素抗性基因能够在大肠杆菌中表达; 和卡那霉素抗性基因能够在玫瑰色红球菌中表达。 通过用穿梭载体pEKSH转化玫瑰色红球菌(ATCC12674),产生转化体玫瑰色红球菌ATCC12674 / pEKSH(KCTC8827P)。