Abstract:
PURPOSE: New strain of Candidanorvegica, CRM-9802 (KCTC 8900P) containing high concentration of ribonucleic acid (RNA) is provided which is used to manufacture a nucleotide spice from RNA of Candida cell extract. CONSTITUTION: Soil sample is mixed with sterile saline and vortexed. The supernatant is plated on YM agar and incubated at 30°C for 24-48 hours. The isolated colony is cultured and RNA content of each colony is measured. The colony showing high content of RNA is selected and its morphological, physiological and cultural characteristics are identified. The isolated yeast forms creamy egg shape colony on YM plate and does not make spores. The range of temperature for growth is from 15 to 35°C. Under anaerobic condition it metabolizes D-glucose and D-cellobiose as carbon sources. On the other hand, D-xylose, L-rhamnose, cellobios, salicin, arbutin, glycerol, D-glucitol, citrate and ethanol can be metabolized at aerobic conditions. Nitrate, nitrite, L-lysine and creatine can be used as a nitrogen source at aerobic conditions. The yeast is cultured in YM medium and harvested at 10 OD and RNA content of cell is measured by orcinol method. The RNA content of Candida norvegica is 12-13% of cell mass.
Abstract:
PURPOSE: A novel lactobacillus sp. MT-1077 (KCTC 8903P) and a novel bacteriocin produced therefrom are provided. The bacteriocin has stability against broad range of pH, heat stability and antifungal activity and used as food preservation agent, biological fermentation regulator, and antifungal agent. CONSTITUTION: A lactobacillus MT-1077 is isolated from Kimchi. The method for purifying bacteriocin from lactobacillus MT-1077 comprises the steps of: incubating lactobacillus MT-1077 in MRS broth; precipitating the lactobacillus MT-1077 fermented culture broth by addition of ammonium hydrogen sulfate; passing the protein precipitates through the column packed with carboxymethyl sepharose CL-6B and eluting the adsorbed protein with 0.1M sodium chloride; passing the elutes through the column packed with phenyl sepharose CL-4B and eluting the adsorbed protein with 10% ammonium hydrogen sulfate solution; and purifying the elutes by HPLC
Abstract:
PURPOSE: Provided are novel strain, fungus MT51005 (KCTC 8787P) and a composition for inhibiting the activity of phospholipase C which is an important enzyme for signal transfer in cell. The novel strain produces inhibitor of abnormal cell growth by inhibiting phospholipase C. CONSTITUTION: The composition for inhibiting the activity of phospholipase C comprises 2,4-dihydroxy-3-ethyl-6-(1'-methylpentene-1'-nyl)-benzaldehyde represented by the formula(1) and/or 2,4-dihydroxy-3-ethyl-6-(1'-methylpentene)-benzaldehyde represented by the formula(2) separated and purified from fungus MT51005 (KCTC 8787P).
Abstract:
PURPOSE: An angiotensin II receiving body binding inhibitor, which shows good inhibitive activity of the angiotensin II receiving body binding and good antagonistic action against vascular contraction induced by the angiotensin II, and a preparing method thereof are provided. CONSTITUTION: The angiotensin II receiving body binding inhibitor consists of a compound of following formula 1, where R represents aliphatic group having 5-20 carbon atoms, derivative thereof or salt thereof. The method comprises steps of: (i) extracting Evodiae Fructus with low class alcohol and then with acetate; and (ii) carrying out silica gel column chromatography, reverse phase low pressure column chromatography and high pressure liquid phase column chromatography on the extracted Evodiae Fructus. The pharmaceutical composition contains the compound of the formula 1 as an effective ingredient.
Abstract:
본 발명은 박테리오신을 생산하는 신규 락토코커스 속 미생물 및 이로부터 생산되는 신규 박테리오신에 관한 것으로, 본 발명에 따라 김치에서 분리된 락토코커스 속 MT-H559 균주는 항균성 펩티드인 박테리오신을 생산하며, 이로부터 생산된 신규 박테리오신은 넓은 범위의 pH 및 온도에서 안정하여 생물학적 식품 보존제로서 이용될 수 있다.
Abstract:
본 발명은 신균주 곰팡이 MT51005(KCTC 8787P)와 포스포리파제 C 활성저해용 조성물에 관한 것으로서, 더욱 상세하게는 세포내 신호전달과정의 중요효소인 포스포리파제 C(Phospholipase C)의 활성을 저해하여 세포의 이상증식을 억제할 수 있는 물질을 생산하는 신규 곰팡이 균주 MT51005와, 곰팡이 MT51005의 배양액으로부터 분리 정제된 2,4-디하이드록시-3-에틸-6-(1'-메틸펜텐-1'-닐)-벤즈알데하이드, 2,4-디하이드록시-3-에틸-6-(1'-메틸펜텐)-벤즈알데하이드, 또는 이들 각각을 유효성분으로 함유한 포스포리파제 C 활성저해용 조성물에 관한 것이다.