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국내에 유통되는 종국 곰팡이의 분류학적 특성 및 안전성
홍승범 ( Seungbeom Hong ),홍성용 ( Sungyong Hong ),조규홍 ( Kyuhong Jo ),김영식 ( Youngsik Kim ),도종호 ( Jongho Do ),도지영 ( Jiyoung Do ),노석범 ( Seokbeom Noh ),윤한홍 ( Hanhong Yoon ),정수현 ( Soohyun Chung ) 한국균학회 2015 韓國菌學會誌 Vol.43 No.3
We examined taxonomic characteristics and safety of eight Nuruk molds that are widely used for making soybean paste, soy sauce and alcoholic beverages in Korea. HK1 from Hakyeong Fermentation Co., SW101 from Suwon Fermentation Co., CF1001, CF1002, CF1003 from Chungmoo Fermaentation Co. and KACC 93210 are yellow-Nuruk molds, and SW201 from Suwon Fermentation Co. and CF1005 from Chungmoo Fermentation Co. are white-Nuruk molds. Six strains of yellow-Nuruk molds were identified as Aspergillus oryzae. HK1, SW101, CF1001 and CF1003 of yellow-Nuruk molds have middle length of stipes (711~1,121 μm), and CF1003 (for sake) produced less conidia and more hyphae than HK1, SW101 and CF1001 (for soybean paste). CF 1002 used for soy sauce has shorter stipes (543 μm) and is clustered into IBLB- group based on omtA gene analysis although the other yellow-Nuruk molds are clustered into ICAo group. KACC 93210 isolated from traditional Korean Meju has very short stipes (average 270 μm), and showed velvety colonies although the others showed floccose colonies. The strain has different DNA sequences of omtA gene from other strains in NCBI GenBank as well as strains used in Korea, suggesting that it is unique from other strains published. SW201 and CF1005 of white-Nuruk molds were identified as Aspergillus luchuensis or A. luchuensis mut. Kawachii that is known as safe, non-toxigenic fungus. The six strains of yellow-Nuruk molds did not produce mycotoxins including aflatoxin, cyclopiazonic acid, and sterigmatocystin. Therefore, eight strains of Nuruk molds used for making soy sauce, soybean paste and alcoholic beverages in Korea were proved to be safe in this study.
고준위방사성폐기물 심층처분 부지조사를 위한 암반공학적 요소: 국내외 현황 및 사례 조사
최승범(Seungbeom Choi),김유홍(You Hong Kihm),김은경(Eungyeong Kim),천대성(Dae-Sung Cheon) 한국암반공학회 2020 터널과지하공간 Vol.30 No.2
우리나라는 1978년부터 원자력발전소를 운영해왔으며 그에 따른 고준위방사성폐기물 발생이 누적되고 있다. 이를 안전하게 처분하기 위한 영구 처분시설이 시급한 실정이나 처분 부지를 선정하는 과정에서 광범위하고 정밀한 부지조사가 요구되기 때문에 장기간에 걸친 조사가 선행되어야한다. 이러한 부지조사는 단계별로 진행되는 것이 일반적이며 이 과정에서 다학제적 평가가 이루어진다. 본 논문에서는 부지조사 과정에서 요구되는 암반공학적 요소를 중점으로 사례조사를 수행하였다. 단계별로 고려되는 암반공학적 평가요소와 그 적용 사례를 정리하였으며 이 과정에서 수행된 해외 연구 사례를 조사하였다. 동시에 국내 연구현황을 정리하였고 부지조사와 관련된 향후 연구 계획을 간략히 보고하였다. 향후 연구를 통해 부지조사 시 참고할 수 있는 기반자료를 생산하고자 하며 본 논문에서 수집된 사례 역시 활용할 예정이다. Nuclear power plants have been operated in Korea since 1978, thus the high-level radioactive waste (HLW) produced from the plants has been accumulated accordingly. Hence, it is urgent to secure a final repository for HLW disposal, however, siting process should be preceded, which usually takes long time, as it requires broad and precise investigation. The investigation is generally carried out in stages, which consists of multidisciplinary approaches. In this study, the case studies mainly pertaining to rock mechanics were conducted. Rock mechanical aspects required in each stage and their applications were investigated and corresponding R&D researches were presented as well. At the same time, current research status in Korea was presented, followed by a brief future research plan with regard to the site investigation. The future research aims to produce fundamental information for siting process, and the compiled cases in this study will be utilized as references in the research.
Predictors of Psychiatric Outpatient Adherence after an Emergency Room Visit for a Suicide Attempt
Jin Shin,Seungbeom Yang,Doo-Heum Park,Seung-Ho Ryu,Jee Hyun Ha,Jong Won Kim,Hong Jun Jeon 대한신경정신의학회 2020 PSYCHIATRY INVESTIGATION Vol.17 No.9
Objective This study aimed to investigate the potential correlation between baseline characteristics of individuals visiting an emergency room for a suicide attempt and subsequent psychiatric outpatient treatment adherence. Methods Medical records of 525 subjects, who visited an emergency room at a university-affiliated hospital for a suicide attempt between January 2017 and December 2018 were retrospectively reviewed. Potential associations between baseline characteristics and psychiatric outpatient visitation were statistically analyzed. Results 107 out of 525 individuals (20.4%) who attempted suicide visited an outpatient clinic after the initial emergency room visit. Several factors (e.g., sober during suicide attempt, college degree, practicing religion, psychiatric treatment history) were significantly related to better psychiatric outpatient follow-up. Conclusion Several demographic and clinical factors predicted outpatient adherence following a suicide attempt. Therefore, additional attention should be given to suicide attempters who are at the risk of non-adherence by practitioners in the emergency room.
Zang, Yunxiang,Lim, Myungho,Park, Beomseok,Hong, Seungbeom,Kim, Doohwan Korean Society for Molecular Biology 2008 Molecules and cells Vol.25 No.2
Indole glucosinolates (IG) play important roles in plant defense, plant-insect interactions, and stress responses in plants. In an attempt to metabolically engineer the IG pathway flux in Chinese cabbage, three important Arabidopsis cDNAs, CYP79B2, CYP79B3, and CYP83B1, were introduced into Chinese cabbage by Agrobacterium-mediated transformation. Overexpression of CYP79B3 or CYP83B1 did not affect IG accumulation levels, and overexpression of CYP79B2 or CYP79B3 prevented the transformed callus from being regenerated, displaying the phenotype of indole-3-acetic acid (IAA) overproduction. However, when CYP83B1 was overexpressed together with CYP79B2 and/or CYP79B3, the transformed calli were regenerated into whole plants that accumulated higher levels of glucobrassicin, 4-hydroxy glucobrassicin, and 4-methoxy glu-cobrassicin than wild-type controls. This result suggests that the flux in Chinese cabbage is predominantly channeled into IAA biosynthesis so that coordinate expression of the two consecutive enzymes is needed to divert the flux into IG biosynthesis. With regard to IG accumulation, overexpression of all three cDNAs was no better than overexpression of the two cDNAs. The content of neoglucobrassicin remained unchanged in all transgenic plants. Although glucobrassicin was most directly affected by overexpression of the transgenes, elevated levels of the parent IG, glucobrassicin, were not always accompanied by increases in 4-hydroxy and 4-methoxy glucobrassicin. However, one transgenic line producing about 8-fold increased glucobrassicin also accumulated at least 2.5 fold more 4-hydroxy and 4-methoxy glucobrassicin. This implies that a large glucobrassicin pool exceeding some threshold level drives the flux into the side chain modification pathway. Aliphatic glucosinolate content was not affected in any of the transgenic plants.