A5100349170- Holomorphic and Operator Theory
- Food Quality and Safety Studies
- Phytochemicals and Antioxidant Activities
- Advanced Topics in Algebra
- Phytoestrogen effects and research
- GABA and Rice Research
- Advanced Banach Space Theory
- Algebraic and Geometric Analysis
- Nutrition, Health and Food Behavior
- Natural product bioactivities and synthesis
- Spectral Theory in Mathematical Physics
- Food composition and properties
- Advanced Operator Algebra Research
- Soybean genetics and cultivation
- Microbial Metabolites in Food Biotechnology
- Tea Polyphenols and Effects
- Fermentation and Sensory Analysis
- Geology and Paleoclimatology Research
- Folate and B Vitamins Research
- Mathematical functions and polynomials
- Pharmacological Effects of Natural Compounds
- Advanced Glycation End Products research
- Methane Hydrates and Related Phenomena
- Antioxidant Activity and Oxidative Stress
- Geological formations and processes
Rural Development Administration
2016-2024
Instituto de Ciencias Agrarias
2020-2022
Jeonbuk National University
2022
Food & Nutrition
2017-2022
Dongguk University
2022
National Academy of Agricultural Sciences
2021-2022
Chungnam National University
2008-2021
National Institute of Agricultural Science and Technology
2020-2021
National Academy of Agricultural Science
2016-2019
Korea Food Research Institute
2017-2018
We evaluated antioxidant activities of heated pear juice (HPJ) exposed to 120, 130, and 140℃ for 2 hr. HPJ was partitioned using n-hexane, chloroform, ethyl acetate, n-butanol, water. The acetate fraction treated at 130℃ hr showed strong activity; thus, this extract isolated purified silica gel column chromatography preparative high performance liquid chromatography. structure the compound determined ultraviolet mass spectrometry, ¹H-nucelar magnetic resonance (NMR), ¹³C-NMR. Antioxidant...
This study was performed to isolate and identify a compound with antiproliferative activity against human stomach cancer cell lines, from fructose-tryptophan Maillard reaction products (MRPs). The MRPs, prepared solution heated at 130 °C for 2 h, were fractionated into five solvent fractions: n-hexane, chloroform, ethyl acetate, butanol, water. highest found in the chloroform fraction (85.93% 200 μg/mL), active this purified by silica gel column chromatography, TLC, preparative HPLC. (IC50)...
The aim of this study was to quantitatively characterize 19 green and roasted coffee beans by ultra-performance liquid chromatography coupled with diode array detector quadrupole time-of-flight mass spectrometry. A total 57 phenolic acids including nine methyl ester mono-, di-caffeoylquinic acid, feruloylquinic acid were identified. hydroxycinnamoyl quinates are reported for the first time from Coffea arabica robusta. content ranged 5628 ± 227 8581 109 mg/100 g dry weight (DW) in green, 791...
This study was performed to evaluate and compare the antioxidant substance content activities of white (Superior) colored (Hongyoung, Jayoung, Jasim, Seohong, Jaseo) potatoes. The potatoes were extracted with 80% ethanol evaluated for total polyphenol, flavonoid, anthocyanin contents 1,1-diphenyl- 2-picrylhydrazyl (DPPH)/2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt (ABTS) radical scavenging activity, reducing power, ferrous metal ion chelating effect. Hongyoung...
The aim of this study was to investigate the phenolic acid and carotenoid composition bitter melon evaluate its antioxidant activity. harvest starts from 5–35 days after fertilization. With increasing maturation, gallic acid, chlorogenic catechin contents increased, while caffeic p-coumaric ferulic decreased. all carotenoids increased. Although lycopene content not detected for 20 fertilization, increased 842.0 μg/g at 35 Total polyphenol flavonoid were 639.4 203.3 mg/100 g days. Free...
To overcome disadvantages of germinated brown rice, we rough rice and tested effects its useful ingredients on prevention diabetes.This study investigated the in vitro antioxidant vivo antidiabetic (Oryza sativa L.) with hulls, before after germination. Rough was for 4 days extracted water at 120°C.This measured antioxidants antioxidative inhibitory activities against α-amylase α-glucosidase germination through animal experiments.All these factors increased Also, inhibition glucose uptake by...
Most previous studies have been focused on isoflavone profile with biological activities from soybean seed and its related products. However, in the present study, eighty-three flavonoid derivatives (55 flavonols, 9 flavones 19 isoflavones) were comprehensively identified quantified young leaves of 21 core-collected cultivars based ultra-performance liquid chromatography-diode array detector quadrupole time flight/mass spectrometry (UPLC-DAD-QToF/MS). Among total flavonoids (SLs), abundant...
This study was conducted to develop a lipid/clay-based solid dispersion (LSD) formulation enhance the dissolution and oral bioavailability of poorly soluble curcumin. Krill oil aminoclay were used as lipid stabilizer, respectively, LSD formulations curcumin prepared by an antisolvent precipitation method combined with freeze-drying process. Based on profiles, optimal composition determined at weight ratio curcumin: krill oil: 1:5:5 in presence 0.5% D-α-tocopherol polyethylene glycol...
고구마 잎과 잎자루에 대한 식품소재로서의 활용 가능성을 알아보기 위하여 14 품종의 고구마에 일반성분, 무기질 및 항산화활성에 대해 조사하였다. 함량은 K과 Ca 함량이 가장 높았으며, 단백질 잎에서 15.57~20.34% 범위로 연황미 높게 나타났고 잎자루에서는 3.71~5.97% 신천미에서 나타났다. 잎의 총 폴리페놀 함량과 플라보노이드 각각 46.26~85.10mg/g 40.25~68.37 mg/g 건풍미에서 잎자루는 14.60~37.93 10.18~22.48 mg/g으로 높았다. DPPH 라디칼 소거활성은 경우 건풍미와 증미에서 IC<sub>50</sub>값이 0.109 mg/mL로 신천미가 0.448 항산화력은 건풍미가 58.75 mg AA eq/g으로 높았고 대유미가 14.95 이상의 결과로부터 잎이 잎자루보다 항산화활성 뿐만 아니라 단백질함량과 무기질함량이 풍부해 식품소재로써 활용가능성이 높을 것으로 판단된다.