Abstract:
The present invention relates to actinobacillus succinogenes and a succinic acid manufacturing method using the same and, more specifically, to actinobacillus succinogenes (KCTC 12233BP) which is a novel strain and has excellent productivity, yield and process stability of succinic acid, is applicable in the process of being mass produced, and a succinic acid manufacturing method using the same. [Reference numerals] (AA) Yield rate (%); (BB) Example 1; (CC) Comparative example 1
Abstract:
본 발명은 바이오매스 유래 퓨란계 광경화성 화합물 및 이를 포함하는 무용매형 광경화성 조성물 및 그 제조방법에 관한 것으로서, 1 또는 2개의 2-히드록시프로필 메타크릴레이트(2-Hydroxypropyl methacrylate) 관능기가 결합된 퓨란계 화합물을 포함하여 이루어지는 것을 특징으로 한다. 본 발명에 의하면, 종래 유해물질을 발생시키는 석유자원 유래 광경화성 물질을 대체할 수 있으며, 바이오매스에서 유래함으로써, 친환경적이며, 공정조건을 최적화함으로써, 바이오매스에서 광경화성 물질을 우수한 수율로 제조할 수 있을 뿐만 아니라, 합성경로 또한 매우 경제적인 장점이 있다.
Abstract:
PURPOSE: A method for producing hydrogen using waste glycerol is provided to effectively produce hydrogen under an optimized reaction condition. CONSTITUTION: A method for producing hydrogen using waste glycerol comprises: a step of culturing facultative anaerobes under an aerobic condition; a step of immobilizing the facultative anaerobes on an immobilized carrier; and a step of culturing the facultative anaerobes in a medium containing waste glycerol under an anaerobic condition. [Reference numerals] (AA) Single colony; (BB) Entrapment; (CC) Adsorption; (DD) Immobilized bead; (EE) N_2; (FF) Crude glycerol from biodiesel process; (GG) 37°C, aerobic condition; (HH) 37°C, 200rpm, aerobic condition; (II) Or; (JJ) Dropping way; (KK) Cutting way; (LL) 160mL serum bottle, working volume 50mL, pH 6.5, anaerobic condition; (MM) 37°C, 150rpm, anaerobic condition; (NN) Microorganism cultivation; (OO) Microorganism immobilization; (PP) Hydrogen production
Abstract:
PURPOSE: A biomass originated furan based photo-curable compound, a solventless photo-curable composition including the same and a manufacturing method thereof are provided to replace oil resources originated photo-curable materials which occurs the conventional harmful materials. CONSTITUTION: A biomass originated furan based photo-curable compound includes furan based compound in which one or two 2-hydroxypropyl methacrylate functional groups are combined. The furan based compound in which one or two 2-hydroxypropyl methacrylate functional groups are combined is expressed by chemical formula 1 or 2. A solventless photo-curable composition including the biomass originated furan based photo-curable compound includes The solventless type photocurable composition including the biomass originated furan system photo-curing compound comprises the free radical photo-initiators or curing accelerators in the biomass originated furan based photo-curable compound. 1-20 parts by weight of the free radical photo-initiators and 0.01-10 parts by weight of the curing accelerators are included based on the biomass originated furan based photo-curing compound.
Abstract:
본 발명은 목질계 바이오매스 유래 셀룰로오스를 이용한 5-히드록시메틸푸르푸랄의 제조방법에 관한 것으로서, 본 발명의 일 실시형태에 의한 목질계 바이오매스 유래 셀룰로오스를 이용한 5-히드록시메틸-2-푸르푸랄의 제조방법은, 목질계 바이오매스로부터 셀룰로오스를 추출하는 전처리단계(S10); 및 상기 셀룰로오스와 금속촉매를 용매 내에서 촉매전환반응시켜 5-히드록시메틸푸르푸랄(HMF)을 제조하는 반응단계(S20)를 포함한다. 본 발명에 따르면, 목질계 바이오매스로부터 유래된 셀룰로오스를 활용함으로써, 작물계 바이오매스를 활용함에 따라 발생하는 곡물가 상승 등의 문제가 없고, 셀룰로오스를 글루코오스로 단당화하는 과정 없이 단일 공정에 의하여 직접 생성물로 전환하는 촉매전환반응을 이용함으로써, 공정비용을 절감할 수 있는 효과가 있다.
Abstract:
PURPOSE: An acid catalytic composition containing an organic solvent and diluted hydrochloric acid and a method for manufacturing 5-chloro methyl-2-furfyral from seaweed derived galactan using the composition are provided to reduce operational risks and to improve environmentally-friendly characteristic. CONSTITUTION: An acid catalytic composition for manufacturing 5-chloro methyl-2-furfyral from seaweed derived galactan includes an organic solvent and diluted hydrochloric acid. The concentration of the diluted hydrochloric acid is in a range between 4 and 8 N. The content of the diluted hydrochloric acid is in a range between 30 and 200 parts by weight based on 100 parts by weight of the organic solvent. The organic solvent is a halogenated hydrocarbon-based solvent. The galactan includes agarose.