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시판 프로바이오틱 제품에서 분리한 젖산균의 생리활성에 대한 연구
박상국,김동민,오계헌 순천향대학교 기초과학연구소 2016 순천향자연과학연구 Vol.22 No.1
The aim of this work was to investigate the physiological activities in cultures isolated from mixtures of commercial powdered lactic acid bacteria. Three lactic acid bacteria designated LAB-1, LAB-2, LAB-3 were isolated and characterized. Growth rate and pH change, and physiological activities of the single LAB cultures were monitored and compared. In LAB cultures after 72 h of incubation, maximal peaks of growth were achieved, and pH changed from 7.00 to 2.0-4.0 depending on the LAB strains. LAB-1, LAB-2, LAB-3 cultures were able to eliminate 48.5%, 67.9%, and 79% of nitrite, respectively. Activities of antioxidant of LAB-1, LAB-2, and LAB-3 were 28.3%, 45.6%, and 50%, and β-galactosidase were 9.9 units/mg, 94.5 units/mg, 4.3 units/mg, respectively. In conclusion, these studies demonstrate that three strains isolated from commercial powdered LAB provides different physiological activities depending on the strains.
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시판 프로바이오틱 제제에서 유래하는 생리활성이 우수한 젖산균의 동정
박상국,김동민,오계헌 순천향대학교 기초과학연구소 2016 순천향자연과학연구 Vol.22 No.2
The purpose of this study is to identify and plot of lactic acid bacteria (LAB), LAB-2 and LAB-3 isolated from commercial probiotics product. In our previous work, three LAB were isolated from probiotics product and investigated their physiological activities. Among the isolates, two isolates, which have excellent physiological activities, were examined the carbon source utilization using Biolog analysis system. Phylogenetic analysis using 16S rRNA sequencing was conducted to identify the strains. As the results, the strains could be assigned to Lactobacillus rhamnosus and Lactobacillus casei, and designated as Lactobacillus rhamnosus LAB-2 and Lactobacillus casei LAB-3, respectively.
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박상국 대동한문학회 2003 大東漢文學 Vol.18 No.-
'스콜라' 이용 시 소속기관이 구독 중이 아닌 경우, 오후 4시부터 익일 오전 7시까지 원문보기가 가능합니다.
이 글은 유럽에 소재하고 있는 한국 고문헌의 현황을 정리해보고, 아울러 조사한 간이 목록을 첨부하였다. 유럽소재 한국 전적조사는 프랑스와 병인양요 때 약탈당한 외규장각도서 반환문제와 결부되어 예정보다 늦게 시작할 수밖에 없었다. 2001년도에 프랑스 기메박물관과 동양어학교 도서관을 조사할 수 있었다. 그리고 2002년도에는 영국 런던에 있는 구립도서관 소장 전적을 조사하였다.
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박상국,Park, Sang-Kuk 한국기술사회 2009 技術士 Vol.42 No.2
The Kyung-In Canal is to protect Gulpo Stream Area from recursive flooding and to relief inland transportation congestion, in the Seoul Metropolitan Area. Enlarging and extending the Gulpo stream Drainage Canal operated only during rainy season. Kyung-in Canal will serve not only for preventiong flood, but for reducing logistics cost also in the Seoul Metropolitan Area
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박상국,Park, Sang-Kook (사)한국토질및기초기술사회 2006 기술발표회 Vol.2006 No.-
The ground anchoring has been utilized over 40 years. It is growing the application of the removal ground anchor with tension force for holding earth retaining constructions in the city. It transmits tension stress of prestressed steel wire through grouting to fixed the ground that is of great advantage adjacent ground stability. Nowadays, we can find the compression dispersion anchor on many site. But, it has some problems in behavior of anchors because of impossible to tense p.c strand uniformly under the existing equipment due to different length of p c strand. Hence, motive of this research was to study the application of the newly developed tension system, that analyze and compare with the current anchoring method build on the data of in-site test and laboratory test. As a result, in case of auto back tension system, it became clear that tension pressure was equally distributed among the steal wires but the existing tension system showed sign of instability by indicating stress deflection of about 30% compare with design load. This can cause an ultimate failure of the concentrated p.c strand and a shear failure of ground.
