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[PG-0009] Antioxidant activities and phytochemical contents of diverse representative tea germplasm
Gi-An Lee(Gi-An Lee),Nayoung Ro(Nayoung Ro),Do Yoon Hyun(Do Yoon Hyun),Gwang-Yeon Gi(Gwang-Yeon Gi),Kyung Jun Lee(Kyung Jun Lee),Weilan Li(Weilan Li),Eun Ae Yoo(Eun Ae Yoo),SooKyeong Lee(SooKyeong Lee 한국육종학회 2022 한국육종학회 공동학술발표집 Vol.2022 No.-
한국, 불가리아, 엘살바도르 강낭콩(Phaseolus vulgaris L.) 유전자원의 농업 및 종자 형질 비교
이수경(Sookyeong Lee),현도윤(Do Yoon Hyun),이경준(Kyung Jun Lee),이승범(Seungbum Lee),유은애(Eunae Yoo),조규택(Gyu-Taek Cho),고희종(Hee-Jong Koh) 한국육종학회 2022 한국육종학회지 Vol.54 No.2
To compare agronomic and seed traits of 135 common bean landraces originating from Korea, Bulgaria, and El Salvador, we evaluated 20 morphological traits and performed principal component analysis (PCA). In the PCA, the first and second principal components accounted for 55.15% and 15.97% of the total variance, respectively. The first component showed a strong positive correlation with seed size and 100-seed weight, whereas the second component produced a strong negative correlation with days to flowering and days to maturity, indicating that these traits may explain the differences between landraces originating from different countries. Landraces from Korea showed higher variation in days to flowering and days to maturity; those from Bulgaria produced larger and heavier seeds; those from El Salvador produced smaller and lighter seeds and flowering and maturity occurred earlier. In addition, the landraces from El Salvador had relatively lower diversity compared to those from other countries, as they were grouped within a small cluster in the PCA. These evaluation results may provide important information for selecting breeding materials, and diversity analyses of landraces from different countries provide information for securing genetic resources.
Antioxidant Activities and Total Phenolic Contents of Three Legumes
이경준(Kyung Jun Lee),김가희(Ga-Hee Kim),이기안(Gi-An Lee),이정로(Jung-Ro Lee),조규택(Gyu-Taek Cho),마경호(Kyung-Ho Ma),이수경(Sookyeong Lee) 한국자원식물학회 2021 한국자원식물학회지 Vol.34 No.6
Legumes have been important components of the human diet. They contain not only protein, starch, and dietary fiber, but also various phenolic compounds such as flavonoids and phenolic acids. The importance of phenolic compounds to human health is well known due to their antioxidant activities. In this study, three legumes (adzuki beans, common beans, and black soybeans) frequently cultivated in Korea were evaluated for their total phenolic content (TPC) and antioxidant activities using DPPH (2,2-diphenyl-1-picrylhydrazyl), ABTS (2,2′-azinobis (3-ethylbenzothiazoline 6-sulfonate)), and FRAP (ferric reducing antioxidant potential) assays. In addition, correlations between agricultural traits and antioxidant activities of these three legumes were analyzed. Antioxidant activities assessed by DPPH, ABTS, and FRAP assays and TPC showed wide variations among legumes types and accessions. Among the three legumes, adzuki beans showed higher TPC and antioxidant activity than the other two legumes. In correlation analysis, seed size showed negative correlations with antioxidant activities and TPC. In principal component analysis and hierarchical clustering analysis, each of the three legumes was clearly separate. Results of this study can be used as basic information for developing functional materials for each legume. They can also help us understand the overall antioxidant activity of the three legumes.
중장년층 재취업자의 주관적 경력성공에 미치는 영향 요인 연구
이숙영 ( Lee Sookyeong ),남승하 ( Nam Sungha ) 단국대학교 융합사회연구소 2022 공공정책과 국정관리 Vol.16 No.3
This study has purpose of analyzing the effects of networking behavior, protean career attitude, job suitability, organizational suitability, and employment instability on subjective career success. The results of analysis using hierarchical regression analysis for the middle-aged re-employment are as follows. First, job networking had a positive impact on career and job satisfaction, and social networking had a affirmative effect on employability and life satisfaction. Second, in protean career attitude, self-direction showed a significant positive (+) impact on job satisfaction and value orientation on employability. Third, person-job fit had a affirmative influence on all sub-dimension of subjective career success, and person-organization fit had a positive impact on career satisfaction, job satisfaction, and life satisfaction. On the other hand, employment instability had a negative influence on job satisfaction, employability, and life satisfaction. Based on the results of this study, we intend to propose theoretical and practical implications for improving the subjective career success of middle-aged people.