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김은경 ( Eun-gyeong Kim ),김민경 ( Min-kyung Kim ),권현애 ( Hyun-ae Kwon ),윤도경 ( Do-kyung Youn ),구정헌 ( Jeong-heon Koo ),박소연 ( So-yeon Park ),이희근 ( Hui-geun Lee ),조명희 ( Myeong-hui Jo ),하도윤 ( Do-yun Hah ),김철호 ( 한국동물위생학회 2018 한국동물위생학회지 (KOJVS) Vol.41 No.3
Salmonella Enteritidis (S. Enteritidis) are found in animals, humans, and environment. In addition, S. Enteritidis draws attention to the public health concerns due to carriage of antibiotic resistance traits. For these reasons, the prevalence and antibiotic resistance patterns of S. Enteritidis are significant issues with regard to public health. To address this issues, a total of 24 strains of S. Enteritidis from 164 samples collected from several slaughterhouses in Gyeong-Nam province in order for antibiotic resistance profiles. Subsequently, we characterized the genotyping by random amplification polymorphic DNA (RAPD)-PCR. As a result, very high level of resistance to protein synthesis inhibition antibiotics and most isolates were susceptible to others. Six random primers were used for RAPD-PCR to reveal genotypes of S. Enteritidis isolates. One of the primer, P1245, generated 147 distinct RAPD-PCR fragments ranging from 400∼3000 bp. The number of RAPD-PCR products ranged from 4 to 8 for this primer. The RAPD-PCR fragments could be placed these strains into 3 subgroups and 2 classes by UPGMA cluster analysis. Interestingly, several S. Enteritidis that isolated from different slaughterhouses showed same genotype. These results showed only limited genetic variation among the isolates, those were grouped into a few different patterns of antibiotic resistance.
李乙熙,崔相道,吳錫斗,高鏡畢 진주산업대학교 농업기술연구소 1991 農業技術硏究所報 Vol.4 No.-
아미노산과 5炭糖을 121℃에서 15분간 열처리하여 Maillard반응의 發色强度를 비교한 결과는 다음과 같다. 1. 아미노산은 發色强度가 높은것, 중간것, 낮은것으로 대별되었다. 2. 糖은 L(+)arabinose, D(-)-ribose, D(+)-xylose 순으로 發色强度가 높게 나타났다. 3. pH차이에 따른 영향은 反應液의 pH가 높아질수록 反應性은 增加되었다. 4. D(+)-xylose, D(-)-ribose 및 L(+)-arabinose의 농도가 높아질 수록 반응성은 높게 나타났다. Common amino acids and pentoses have been ranked acording to the intensity of Maillard browning formed when heated in an autoclave at 121℃ for 15 min. The results obtained as follows; 1. The amino compounds have been groupeed into high, intermediate and low browning producing groups. 2. The color intensity of pentoses tested was xylose>ribose>arabinose. 3. As the pH values of reaction solutions increased, the color intensity of melanoidins. 4. As the concentrations of xylose, ribose and arabinose increased, the color intensities of melanoidins.
Production Conditions for Bruceanol B, an Antibiotic that Generates Oxygen Radical
Lee, Do-Seung,Boo, Kyung-Hwan,Woo, Jin-Kyu,Jeon, Gyeong-Lyong,Lee, Jin-Man,Lee, Sang-Han,Kim, Jae-Hoon,Lee, Dong-Sun,Riu, Key Zung The Korean Society for Applied Biological Chemistr 2011 Applied Biological Chemistry (Appl Biol Chem) Vol.54 No.1
Strain DS4, a soil microorganism producing an oxygen radical-generating antibacterial substance, bruceanol B, was isolated, and cultural conditions for the antibiotic production were optimized. Bruceanol B was separated by ethyl acetate extraction, silica gel and Sephadex LH-20 gel column chromatographies, and high-performance liquid chromatography (HPLC). The highest antibacterial activity was obtained from medium containing 1.5% soluble starch and 2.0% yeast extract, cultured at $30^{\circ}C$ for 3.5 days.
( Do Seung Lee ),( Kyung Hwan Boo ),( Jin Kyu Woo ),( Gyeong Lyong Jeon ),( Jin Man Lee ),( Sang Han Lee ),( Jae Hoon Kim ),( Dong Sun Lee ),( Key Zung Riu ) 한국응용생명화학회 2011 Applied Biological Chemistry (Appl Biol Chem) Vol.54 No.1
Strain DS4, a soil microorganism producing an oxygen radical-generating antibacterial substance, bruceanol B, was isolated, and cultural conditions for the antibiotic production were optimized. Bruceanol B was separated by ethyl acetate extraction, silica gel and Sephadex LH-20 gel column chromatographies, and high-performance liquid chromatography (HPLC). The highest antibacterial activity was obtained from medium containing 1.5% soluble starch and 2.0% yeast extract, cultured at 30oC for 3.5 days.
Do Gyeong Lee,Jin Sung Choi,Seung Woo Yeon,En Ji Cui,Hee Jung Park,Jong Su Yoo,In Sik Chung,Nam In Baek 한국응용생명화학회 2010 Journal of Applied Biological Chemistry (J. Appl. Vol.53 No.3
One secoiridoid glycoside was isolated from the EtOAc-soluble fraction of flowers of Osmanthus fragrans var. aurantiacus by repeated silica gel, octadecyl silica gel (ODS) and Sephadex LH-20 column chromatographies. It was identified as (8E)-ligstroside ba
Lee, Do-Gyeong,Choi, Jin-Sung,Yeon, Seung-Woo,Cui, En-Ji,Park, Hee-Jung,Yoo, Jong-Su,Chung, In-Sik,Baek, Nam-In The Korean Society for Applied Biological Chemistr 2010 Applied Biological Chemistry (Appl Biol Chem) Vol.53 No.3
One secoiridoid glycoside was isolated from the EtOAc-soluble fraction of flowers of Osmanthus fragrans var. aurantiacus by repeated silica gel, octadecyl silica gel (ODS) and Sephadex LH-20 column chromatographies. It was identified as (8E)-ligstroside based on spectroscopic methods including NMR and MS. This compound has been first isolated from Osmanthus fragrans var. aurantiacus, and showed BACE1 inhibition activity.