A5008767564- Lignin and Wood Chemistry
- Food Quality and Safety Studies
- Phytoestrogen effects and research
- Phytochemicals and Antioxidant Activities
- Bioactive natural compounds
- Thermochemical Biomass Conversion Processes
- Biofuel production and bioconversion
- Plant-derived Lignans Synthesis and Bioactivity
- Phytochemistry and Biological Activities
- Recycling and utilization of industrial and municipal waste in materials production
- Analytical Chemistry and Chromatography
- Korean Urban and Social Studies
- Biological Activity of Diterpenoids and Biflavonoids
- GABA and Rice Research
- Natural product bioactivities and synthesis
- Dyeing and Modifying Textile Fibers
- Microbial Metabolic Engineering and Bioproduction
- Agriculture, Soil, Plant Science
- melanin and skin pigmentation
- Magnolia and Illicium research
- Polymer composites and self-healing
- Neurological Disease Mechanisms and Treatments
- Wood and Agarwood Research
- Fungal and yeast genetics research
- Plant biochemistry and biosynthesis
Institute of Forest Science
2024
Korea Forest Service
2006-2023
Korea Institute of Ceramic Engineering and Technology
2020-2021
Hanyang University
2021
Seoul National University
2013
Konkuk University
2008-2009
Forest Research Institute
2006-2009
Rice University
2009
Wonkwang University
2008
The seeds of 322 Korean soybean varieties were collected from six different cultivated sites in Korea and classified into three groups based on the 100-seed weight as small, medium, large. Seeds analyzed for their concentrations isoflavones phenolic compounds. total average at Iksan (2.840 micromol g(-1)) compounds grown Yeoncheon (9.216 (9.154 significantly (p<0.05). In small medium soybeans Yeoncheon, Yesan, Milyang high levels obtained, whereas Chuncheon showed lowest isoflavone...
Graft copolymerization of styrene onto kraft lignin (KL) was achieved by atom transfer radical polymerization (ATRP) using a fully substituted lignin-based macroinitiator (KLM). The number average molecular mass (Mn) polystyrene copolymer graft side-chains varying the ratio DMF: water solvent system from 5:0 to 1:4. A Mn up ∼206,000 obtained DMF/water 3:2 (v/v). However, as increased, overall ATRP became less controlled. In addition, thermal properties lignin-g-polystyrene copolymers...
Hibiscus syriacus L. exhibited promising potential as a new source of food and colorants containing various anthocyanins. However, the function anthocyanins from H. has not been investigated. In current study, we evaluated whether varieties Pulsae Paektanshim (PS PTS) inhibit melanin biogenesis. B16F10 cells zebrafish larvae were exposed to PS PTS in presence or absence α-melanocyte-stimulating hormone (α-MSH), contents accompanied by its regulating genes proteins analyzed. moderately...
Four new flavonoid glucosides, 3′,4′-di-O-methylquercetin-7-O-[(4′′→13′′′)-2′′′,6′′′,10′′′,14′′′-tetramethylhexadec-13′′′-ol-14′′′-enyl]-β-d-glucopyranoside (1), 4′-O-methylkaempferol-3-O-[(4′′→13′′′)- 2′′′,6′′′,10′′′,14′′′-tetramethylhexadecan-13′′′-olyl]-β-d-glucopyranoside (2), 3′,4′-di-O-methylbutin-7-O-[(6′′→1′′′)-3′′′,11′′′-dimethyl-7′′′-methylenedodeca-3′′′,10′′′-dienyl]-β-d-glucopyranoside (3), and...
본 연구에서는 국내 숲가꾸기산물을 이용하여 목재펠릿을 제조하고 품질을 분석하였다. 원료는 일본잎갈나무(Larix kaempferi C.)와 활엽수 혼합 수종을 사용하였으며, 말구직경 6 cm를 기준으로 침엽수와 활엽수로 구분하였다. 분쇄 후 건조된 원료를 제조하였다. 분쇄와 건조공정을 동일 조건에서 수행하였음에도 불구하고, 원료의 물리 화학적 차이에 따라 생산되는 목재펠릿의 품질에 차이가 발생하였다. 혼합수종으로 제조한 목재펠릿은 회분이 1.6% 이상으로 분석되었으며, 일본잎갈나무의 경우에는 직경 cm 이하의 소경목에서 1.0%를 초과하였다. 제조하기 이전의 원료 상태에서와 비교하여 제조 후에 회분함량이 0.01~0.1% 정도 상승하는 것을 확인하였다. 발열량에서는 일본잎갈나무가 원료에 비해 약 198 kcal/kg 높았으며, 모든 시료에서 4,300 목재펠릿 원료로 적합한 것으로 분석되었다. 또한, 상태보다 발열량이 일부 포함된 주요 무기물은 수종 및 분류에 관계없이 Ca,...
This study has delved into the evolution of Hanji-manufacturing molds and techniques from ancient times to present, aiming uncover current state traditional Hanji-making techniques. In absence records on Hanji-making, various documents, rare books, documents during Japanese occupation period, among other artifacts relics, were analyzed in this study. It was discovered that a sudden significant transformation occurred Hanji field period. Soda ash caustic soda commonly used for pretreatment...
Despite the existence of proof, it has not been revealed whether or Korean way papermaking method using a device equiped with deckle exists for Hanji making. To prove it, relation between and shape filamentous materials in was investigated. For investigation, water silk called 'Taeji'was analyzed. There were two categories Taeji used investigation. One category relics which 10 letter written on 1700s to 1800s. The mainly curved. other made 2019. In this category, there types by one without...
This study is to evaluate the 'Private antidesertification afforestation support project' in Kubuqi Desert through a survey of local residents and interviews with relevant personnel. Based on this survey, gender, age, occupational differences perception project were analyzed. In addition, was evaluated based OECD/DAC criteria using results in-depth The analysis show that participants answered most questions positively, claiming they receiving social, economic, environmental benefits project....
본 연구에서는 식물종자 자원에서 추출한 유지자원의 이용에 대한 잠재력을 확인하고자 지용성 영양성분에 연구와 이를 토대로 한 산화안정성을 확인해 보았다. 영양성분의 경우 다양한 포화지방산과 불포화지방산의 비율을 보였고, 식물성 스테롤인 phytosterols과 비타민인 tocopherols의 함량 분포를 확인하였다. 볼 때 1차 산화생성물인 산가와 과산화물가의 값은 소나무 유지에서 상대적으로 안정적인 값을 확인하였고, 이러한 경향은 2차 산화생성물의 지표인 p-AV 값에서도 비슷한 결과를 얻을 수 있었다. 산화안정성의 산소유도기간 측정에서도 불포화지방산과 항산화제인 함량에 따른 보였다. 연구에서 얻은 유지의 영양성분 조성 및 산화안정성에 유지 자원의 산업적 이용을 위한 기초자료로서의 활용이 가능할 것으로 판단된다.