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Evaluation of the muscle fiber type and the muscle fat ratio of pork belly and pork shoulder butt
Hyunok Doo,Jinok Kwak,Sumin Ryu,Sheena Kim,Eun Sol Kim,Gi Beom Keum,Yejin Choi,Sriniwas Pandey,Na Rae Lee,Juyoun Kang,Jeongin Choi,Yujung Lee,Dongjun Kim,Kuk-Hwan Seol,Sun Moon Kang,In-Seon Bae,Soo-Hy 한국산업식품공학회 2023 학술대회 및 심포지엄 Vol.2023 No.11
Hyunok Doo,Jin Ho Cho,송민호,Eun Sol Kim,김신아,Gi Beom Keum,Jinok Kwak,Sriniwas Pandey,류수민,Yejin Choi,강주연,김현범,Ju-Hoon Lee 한국축산학회 2024 한국축산학회지 Vol.66 No.2
The Enterococcus faecium (E. faecium) strain AK_C_05 was isolated from cheonggukjang, the Korean traditional food, collected from a local market in South Korea. In this report, we presented the complete genome sequence of E. faecium strain AK_C_05. The genome of E. faecium strain AK_C_05 genome consisted of one circular chromosome (2,691,319 bp) with a guanine + cytosine (GC) content of 38.3% and one circular plasmid (177,732 bp) with a GC content of 35.48%. The Annotation results revealed 2,827 protein-coding sequences (CDSs), 18 rRNAs, and 68 tRNA genes. It possesses genes, which encodes enzymes such as alpha-galactosidase (EC 3.2.1.22), beta-glucosidase (EC 3.2.1.21) and alpha-L-arabinofuranosidase (EC 3.2.1.55) enabling efficient utilization of carbohydrates. Based on Clusters of Orthologous Groups analysis, E. faecium strain AK_C_05 showed specialization in carbohydrate transport and metabolism indicating the ability to generate energy using a variety of carbohydrates.
A latent class analysis of older workers' skill proficiency and skill utilization in South Korea
Lim Doo Hun,Ryu Hyunok,Jin Bora 서울대학교 교육연구소 2020 Asia Pacific Education Review Vol.21 No.3
Accelerated aging trend has become a serious issue in meeting workforce demand in many developing and developed countries. Various workplace interventions have been sought to address this issue. The purpose of this study is to examine the extent that there is a typology of older workers whose skill proficiency and skill utilization are influenced by their perceived degree of readiness to learn and informal learning, and participation in non-formal learning in South Korea. Using the PIAAC data, this study conducted Latent Class Analysis to identify the types of older workers who achieved significantly different levels of basic skill proficiencies and skill utilization in organizational settings. From the data analysis, three types of older workers are identified: The Dormant Workers with Low Skills, The Educated Workers in the Public Sector, and The Educated Workers in Flexible Working Conditions. From the findings, practical and research implications are discussed.
Sheena Kim,Jeongin Choi,Eun Sol Kim,Gi Beom Keum,Hyunok Doo,Jinok Kwak,Sumin Ryu,Yejin Choi,Sriniwas Pandey,Na Rae Lee,Juyoun Kang,Yujung Lee,Dongjun Kim,Kuk-Hwan Seol,Sun Moon Kang,In-Seon Bae,Soo-Hy 충남대학교 농업과학연구소 2023 Korean Journal of Agricultural Science Vol.50 No.4
This study was conducted to find out the correlation between meat quality and muscle fat ratio in pork part meat (pork belly and shoulder butt) using CT (computed tomography) imaging technique. After 24 hours from slaughter, pork loin and belly were individually prepared from the left semiconductors of 26 pigs for CT measurement. The image obtained from CT scans was checked through the picture archiving and communications system (PACS). The volume of muscle and fat in the pork belly and shoulder butt of cross-sectional images taken by CT was estimated using Vitrea workstation version 7. This assemblage was further processed through Vitrea post-processing software to automatically calculate the volumes (Fig. 1). The volumes were measured in milliliters (mL). In addition to volume calculation, a three-dimensional reconstruction of the organ under consideration was generated. Pearson's correlation coefficient was analyzed to evaluate the relationship by region (pork belly, pork shoulder butt), and statistical processing was performed using GraphPad Prism 8. The musclefat ratios of pork belly taken by CT was 1 : 0.86, while that of pork shoulder butt was 1 : 0.37. As a result of CT analysis of the correlation coefficient between pork belly and shoulder butt compared to the muscle-fat ratio, the correlation coefficient was 0.5679 (R2 = 0.3295, p < 0.01). CT imaging provided very good estimates of muscle contents in cuts and in the whole carcass.
Kim Hyeri,Kim Eun Sol,Cho Jin Ho,Song Minho,Cho Jae Hyoung,Kim Sheena,Keum Gi Beom,Kwak Jinok,Doo Hyunok,Pandey Sriniwas,Park Seung-Hwan,Lee Ju Huck,Hyunjung Jung,Hur Tai Young,Kim Jae-Kyung,Oh Kwang 한국미생물·생명공학회 2023 Journal of microbiology and biotechnology Vol.33 No.1
The foodborne illness is the important public health concerns, and the livestock feces are known to be one of the major reservoirs of foodborne pathogens. Also, it was reported that 45.5% of foodborne illness outbreaks have been associated with the animal products contaminated with the livestock feces. In addition, it has been known that the persistence of a pathogens depends on many potential virulent factors including the various virulent genes. Therefore, the first step to understanding the public health risk of livestock feces is to identify and describe microbial communities and potential virulent genes that contribute to bacterial pathogenicity. We used the whole metagenome shotgun sequencing to evaluate the prevalence of foodborne pathogens and to characterize the virulence associated genes in pig and chicken feces. Our data showed that the relative abundance of potential foodborne pathogens, such as Bacillus cereus was higher in chickens than pigs at the species level while the relative abundance of foodborne pathogens including Campylobacter coli was only detected in pigs. Also, the microbial functional characteristics of livestock feces revealed that the gene families related to “Biofilm formation and quorum sensing” were highly enriched in pigs than chicken. Moreover, the variety of gene families associated with “Resistance to antibiotics and toxic compounds” were detected in both animals. These results will help us to prepare the scientific action plans to improve awareness and understanding of the public health risks of livestock feces.