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Yoo, Miyoung,Kim, Sunyoung,Lee, Sanghee,Shin, Dongbin 3M Company 2014 Journal of Chromatographic Science Vol.52 No.10
<P>To enhance the utilization of garlic macerated oil as functional foods, oil-soluble organosulfur compounds were investigated using normal-phase high-performance liquid chromatography method. For analysis of compounds, it was simply extracted with 98% n-hexane in 2-propanol followed by sensitive and selective determination of all compounds. These method exhibited excellent linearity for oil-soluble organosulfur compounds with good coefficient (r > 0.999). Average recoveries were in the range of 80.23-106.18%. The limits of quantitation of oil-soluble organosulfur compounds ranged from 0.32 to 9.56 μg mL(-1) and the limits of detection were from 0.11 to 3.16 μg mL(-1). Overall, the precision of the results, expressed as relative standard deviation, ranged from 0.55 to 11.67%. The proposed method was applied to determining the contents of oil-soluble organosulfur compounds in commercial garlic macerated oils. Also, the stability of oil-soluble organosulfur compounds in garlic macerated oil were evaluated during 3 months of storage at four difference temperatures (4, 10, 25 and 35C). The results showed the studied oil-soluble compounds in garlic macerated oil were stable at 4C and relatively unstable at 35C with varied extents degradation. Therefore, these validation data and temperature stability may be useful for quality evaluation of garlic macerated oils.</P>
제주도 한우 집단에서 Galactose mutarotase (GALM) 유전자의 삽입/결실 다형성과 도체형질의 연관성 분석
김유경(Yoo-Kyung Kim),이종안(Jongan Lee),신상민(Sang-Min Shin),고응규(Yeoung-Gyu Ko),유지현(Ji-Hyun Yoo),원미영(Miyoung Won) 한국생명과학회 2023 생명과학회지 Vol.33 No.12
이 연구는 제주도 한우집단에서 galactose mutarotase (GALM) 유전자형과 도체형질의 연관성을 시험하였다. GALM 유전자형은 3’-비해독부위(3’-UTR)의 14-bp (5’-GGTCTAATGACCAG-3’) 삽입/결실 다형성을 이용하였다. 한우 비육우 집단에서 GALM 유전자의 세 가지 유전자형(LL, LS, SS)이 모두 관찰되었다. 연관성 분석결과는 근내지방의 함량과 밀접한 상관을 보이는 육질등급과 근내지방도의 수준과, 등지방두께의 수준이 유전자형에 따른 유의적인 차이를 나타내었다(p<0.05). 동형접합인 SS 유전자형을 보유한 도체에서 LL 또는 LS 유전자형인 도체에 비해 근내지방 함량 수준은 더 높고, 등지방두께도 더 얇은 수준을 보였다. 반면, 도체중, 등심단면적, 육색, 지방색 등은 GALM 유전자형에 따른 유의적인 차이는 없었다(p>0.05). 3’-UTR에서 14-bp 절편의 결실은 RNA의 2차 구조의 변형과 RNA-결합 단백질, microRNA와의 결합능력에 대한 방해를 통해 유전자 발현에 영향을 줄 수 있는 것으로 예측되었다. GALM 유전자의 3’-UTR 영역에서 14-bp 삽입/결실 다형성에 대한 이번 연구결과는 소에서 근육과 등지방 조직에서 galactose 대사에 의한 지방 축적을 통해 성장형질, 도체형질에 영향을 주는 것으로 판단된다. This study examined the associations between the genotypes of the galactose mutarotase (GALM) gene and carcass traits in the Hanwoo population of Jeju Island, South Korea. The GALM genotypes were determined by the 14-bp (5’-GGTCTAATGACCAG-3’) insertion/deletion (InDel) polymorphisms of the 3′-untranslated region (UTR). All three genotypes (LL, LS, and SS) were found in the Hanwoo steer population. The association analysis showed significant associations between genotypes and several carcass traits, including traits related to intramuscular fat content, such as meat quality, marbling score, and backfat thickness (p<0.05). Animals harboring the SS genotype showed not only higher levels of intramuscular fat content but also lower levels of backfat thickness than animals harboring the LL and LS genotypes. On the other hand, no significant associations were found between the GALM genotypes and carcass weight, eye muscle area, meat color, or fat color (p>0.05). Deleting the 14-bp segment in the 3′-UTR resulted in the modification of the secondary structure of RNA and appeared to affect gene expression by interfering with the binding ability of GALM mRNA with RNA-binding proteins and microRNAs. These results suggest that the 14-bp InDel polymorphism in the 3′-UTR region of the GALM gene affects cattle growth traits and carcass quality through galactose metabolism–mediated fat accumulation in muscle and backfat tissues.
Microstructures of GaN Thin Films Grown on Graphene Layers
Yoo, Hyobin,Chung, Kunook,Choi, Yong Seok,Kang, Chan Soon,Oh, Kyu Hwan,Kim, Miyoung,Yi, Gyu‐,Chul WILEY‐VCH Verlag 2012 ADVANCED MATERIALS Vol.24 No.4
<P><B>Plan‐view and cross‐sectional transmission electron microscopy</B> images show the microstructural properties of GaN thin films grown on graphene layers, including dislocation types and density, crystalline orientation and grain boundaries. The roles of ZnO nanowalls and GaN intermediate layers in the heteroepitaxial growth of GaN on graphene, revealed by cross‐sectional transmission electron microscopy, are also discussed.</P>
Atomic and electronic reconstruction at the van der Waals interface in twisted bilayer graphene
Yoo, Hyobin,Engelke, Rebecca,Carr, Stephen,Fang, Shiang,Zhang, Kuan,Cazeaux, Paul,Sung, Suk Hyun,Hovden, Robert,Tsen, Adam W.,Taniguchi, Takashi,Watanabe, Kenji,Yi, Gyu-Chul,Kim, Miyoung,Luskin, Mitch Nature Publishing Group 2019 NATURE MATERIALS Vol.18 No.5
유안진,서주현,성미영 대한가정학회 2004 Human Ecology Research(HER) Vol.42 No.5
Characteristics of 154 traditional faiy tales (62 Asian, 34 European, 40 American, and 18 African fairy tales) were investigated according to their corresponding cultural areas. The results showed that male adults appeared more frequently in the traditional fairy tales than other characters. The expression of time, such as long ago, once upon a time , and one day was provided, and there was an extreme contrast, fixation, and reiteration of literary styles in the traditional fairy tales, regardless of the cultural areas. Also, the characteristics of time and space that appeared in African fairy tales had a significant difference from other cultures. Also in accordance to the cultural areas, these fail tales illustrated a significant difference in the pattern of problem solving.
( Yoo Jin Lee ),( Seong-eun Kim ),( Yong Eun Park ),( Ji Young Chang ),( Hyun Joo Song ),( Duk Hwan Kim ),( Young Joo Yang ),( Byung Chang Kim ),( Jae Gon Lee ),( Hee Chan Yang ),( Miyoung Choi ),( Se 대한장연구학회 2022 Intestinal Research Vol.20 No.2
Coronavirus disease 2019 (COVID-19), caused by the novel coronavirus, is threatening global health worldwide with unprecedented contagiousness and severity. The best strategy to overcome COVID-19 is a vaccine. Various vaccines are currently being developed, and mass vaccination is in progress. Despite the very encouraging clinical trial results of these vaccines, there is insufficient information on the safety and efficacy of vaccines for inflammatory bowel disease (IBD) patients facing various issues. After reviewing current evidence and international guidelines, the Korean Association for the Study of Intestinal Diseases developed an expert consensus statement on COVID-19 vaccination issues for Korean IBD patients. This expert consensus statement emphasizes that severe acute respiratory syndrome coronavirus 2 vaccination be strongly recommended for IBD patients, and it is safe for IBD patients receiving immunomodulatory therapy. (Intest Res 2022;20:171-183)