Abstract:
본 발명은 5-(하이드록시메틸)푸르푸랄(5-HMF)의 제조 방법 및 5-HMF 제조용 조성물에 관한 것으로서, 보다 구체적으로는 원료인 셀룰로오스로부터 직접 5-HMF를 제조하는 방법 및 5-HMF 제조용 조성물에 관한 것이다. 본 발명의 5-HMF의 제조 방법 및 5-HMF 제조용 조성물에 의하면, 다당류인 셀룰로오스로부터 5-HMF를 제조함에 있어, 셀룰로오스를 단당류로 분해하는 가수분해 공정이 별도로 필요하지 않고, 단 1회의 반응만으로도 셀룰로오스에서 5-HMF를 제조할 수 있다. 또한, 담체에 고정된 산성 이온성 액체 촉매를 이용함으로써 촉매의 재활용이 가능하므로, 5-HMF의 제조 공정을 단순화할 수 있는 효과가 있는 바, 5-HMF의 대량 생산에 유용하게 이용될 수 있다.
Abstract:
The present invention relates to novel uses of capsosiphon fulvescens extract or compounds isolated therefrom for preventing or treating diabetic complications and, more specifically, to a pharmaceutical composition and a health supplement for preventing or treating diabetic complications which include capsosiphon fulvescens extract, soluble extract of non-polar solvent, or compounds isolated therefrom (capsofulvesin A, capsofulvesin B, chalinasterol) as active ingredients. The capsosiphon fulvescens extracts or compounds isolated therefrom (capsofulvesin A, capsofulvesin B, chalinasterol) have excellent suppression activities on aldose reductase and excellent suppression activities on final glycation products. Therefore, the capsosiphon fulvescens extracts or compounds isolated therefrom can be utilized as medicines such as pharmaceutical compositions and health supplements for preventing or treating diabetic complications so that the value of the capsosiphon fulvescens extracts or compounds isolated therefrom can be extremely high when applying in food and medical industries. Specially, the capsosiphon fulvescens extracts or compounds isolated therefrom in the present invention are substances derived from natural substances and have stability without cytotoxicity so that the compositions of the present invention which includes the same as active ingredients can be safely used for long time.
Abstract:
PURPOSE: An oligoalginate lyase is provided to produce unsaturated monosaccharide by completely saccharifying aginate, decompose unsaturated or saturated oligoalginate, and ensure synergistic effect by combination. CONSTITUTION: An oligoalginate lyase is derived from Saccharophagus degradans with an amino acid sequence of number 1. The enzyme decomposes aginic acid, unsaturated oligoalginate, or saturated oligoalginate. A gene encodes the enzyme. A recombinant vector expresses the enzyme. A transformant is prepared by transforming with the recombinant vector. A method for preparing the enzyme comprises a step of isolating and purifying the enzyme from a transformant culture. A method for producing unsaturated monosaccharides comprises a step of reacting the enzyme with alginic acid, unsaturated oligoalginate, or saturated oligoalginate.
Abstract:
PURPOSE: A method for preparing 5-hydroxymethyl furfural is provided to simplify a manufacturing process using an acidic ionic liquid catalyst to be fixed in a supporting material and be recycled. CONSTITUTION: A method for preparing 5-hydroxymethyl furfural comprises the following steps. An acidic ionic liquid catalyst to be fixed in a supporting material and a metal chloride catalyst is mixed with cellulose in an ionic liquid. The ionic liquid is selected from an ionic liquid represented by chemical formula 1 and chemical formula 5. The ionic liquid is 1-butyl-3-methylimidazoly cellar chloride. The acidic ionic liquid is represented by chemical formula 6.
Abstract:
PURPOSE: A pretreatment method of algae for the production of bio energy is provided to increase a saccharification yield by effectively separating alginic acid using a simple process and pre-treating a biomass. CONSTITUTION: A pretreatment method of algae for the production of bio energy comprises a step of reacting algae at 110-170 deg. C for 20-70 minutes under the presence of a sodium salt catalyst. The algae comprise kelp. The sodium salt catalyst comprises sodium carbonate. The concentration of the sodium salt is 5-10 wt%. Alginic acid in the algae is decomposed by the reaction. The pretreatment method additionally comprises a step of pulverizing the algae into particles before the reaction. The size of the particle is 8 meshes or greater.
Abstract:
PURPOSE: A nickel catalyst for a vapor reforming reaction, a manufacturing method of the same, and a hydrogen gas manufacturing method using the same are provided to improve the activity of the catalyst in the vapor reforming reaction. CONSTITUTION: A nickel catalyst for a vapor reforming reaction includes a complex, represented by chemical formula, M1_2-xM2_x/2Ti_yO_z, and a nickel carrying porous carrier. In the chemical formula, M1 and M2 are represented by alkali metals and alkali earth metals; 2-x, x/2, y, and z are respectively the molar ratio of M1, M2, Ti, and O; x is in a range between 0.0 and 2.0; y is in a range between 1.0 and 10; z is in a range between 2.0 and 20; M1 is one of potassium, sodium, and lithium; M2 is calcium or magnesium. Porous carrier is zirconia, yttria, stabilized zirconia, or alumina. [Reference numerals] (AA) Methane conversion rate; (BB) Example 1; (CC) Comparative example 2; (DD) Reaction time
Abstract:
본 발명은 다시마의 물 또는 유기용매 바람직하기는 에탄올, 주정 및 아세톤 추출물과 에탄올 추출물로부터 분획한 n-헥산 그리고 그의 디클로로메탄 분획물이 염증매개인자인 iNOS와 COX-2 발현을 억제하고 이 효소에 의해 생성되는 NO와 proinflammatory cytokine의 생성억제에 효과적인 것을 확인하여 염증 관련 질병의 예방 및 치료에 유용한 유효성분을 함유한 것을 특징으로 하는 항염증 약학조성물을 개시한다.