A5089021193- Food Quality and Safety Studies
- Ginseng Biological Effects and Applications
- Phytochemicals and Antioxidant Activities
- Natural product bioactivities and synthesis
- Pharmacological Effects of Natural Compounds
- Protein Hydrolysis and Bioactive Peptides
- Agriculture, Soil, Plant Science
- Phytochemistry and Biological Activities
- Dyeing and Modifying Textile Fibers
- Phytoestrogen effects and research
- Enzyme Production and Characterization
- Fermentation and Sensory Analysis
- Phytase and its Applications
- Nanofabrication and Lithography Techniques
- Molecular Junctions and Nanostructures
- Essential Oils and Antimicrobial Activity
- T-cell and B-cell Immunology
- Hops Chemistry and Applications
- Monoclonal and Polyclonal Antibodies Research
- Tea Polyphenols and Effects
- Biological Activity of Diterpenoids and Biflavonoids
- Moringa oleifera research and applications
- Coffee research and impacts
- Meat and Animal Product Quality
- Biological Stains and Phytochemicals
Chungwoon University
2016-2025
Hoseo University
2013
Sungkyunkwan University
2008-2010
University of Cambridge
2010
Sunchon National University
2003
Korea University
2002
The tunable photoluminescent and photocatalytic properties of carbon dots (CDs) via chemical surface modification have drawn increased attention to this emerging class nanomaterials. Herein, we summarize the advances in CD synthesis modification, with a focus on functionalization, element doping, passivation, nanocomposite formation metal oxides, transition chalcogenides, or graphitic nitrides. effects size functionalization are discussed, along applications CDs energy conversion, water...
Lipid-soluble ginseng extract was prepared by n-hexane extraction of red ginseng. BALB/c-nu mice were inoculated with human lung cancer (NCI-H460) cells to establish a tumor xenograft model in nude mice, and the lipid-soluble orally administered. The inhibitory rates at doses 0.1, 0.3, 1.0 g/kg/day 18.9% (P < .05), 60.0% .001), 67.5% respectively. oral administration showed potent anticancer effect bearing dose-dependent manner without any apparent toxicity. This is potential nontoxic...
We previously reported that a cytostatic protein is found in ASC-17D Sertoli cell-conditioned media was Mycoplasma arginine deiminase (ADI), which hydrolyzes L-arginine into L-citrulline and ammonia. Here, we report the over-expression of recombinant ADI (rADI) E. coli down-regulation lipopolysaccharide (LPS) induced-nitric oxide (NO) production by rADI treatment. cloned gene from arginini genomic DNA polymerase chain reaction, changed five TGA tryptophan codons (stop codon coli) to TGG...
Abstract The anticancer activity of ginseng originated mainly from lipid‐soluble components. hexane extract marc (HEGM) showed a potent inhibitory on human hepatoma (HepG2, GI 50 = 41.7 μg/ml) and breast (MCF‐7, 54.4 cancer cell proliferation in vitro concentration‐dependent manner as did the (HEG), with values 21.1 μg/ml HepG2 41.2 MCF‐7. water (WEG) possessed low against both lines, but hexane‐soluble fraction WEG (HSF/WEG) (GI 38.7 MCF‐7 cells 51.1 μg/ml). extraction was very promising...
This paper reports that a bioarchitecture with two different active enzymes can be fabricated conveniently on prepatterned surface by highly selective surface-templated layer-by-layer (LBL) assembly coupling bilayer of avidin/biotin-lactate oxidase (biotin-LOD) avidin/biotin-horseradish peroxidase (biotin-HRP). The utilized as excellent building blocks for the fabrication well-defined 3D nanostructures precise control position and height surface. In addition, LBL assembled bienzyme...
배(Pyrus pyrifolia)의 과피와 과심에 복합효소처리 의해 물리화학적 특성 및 기능성에 미치는 영향을 조사하였다. 배의 4종의 복합효소를 처리할 경우 과피의 가용성 고형분 함량이 증가하였고 과심은 유의적으로 증가하지 않았다. 함량은 Pectinex로 처리하였을 때 가장 높은 증대효과를 나타냈다. 또한 환원당 추출 수율을 얻을 수 있었다. 총당 대부분의 효소처리군에서 증가하여 효소에 탄수화물이 분해되어 당 증가하는 것을 확인할 과피에 Viscozyme으로 총 폴리페놀 함량, 플라보노이드 DPPH radical 소거능, ABTS 소거능 SOD 유사활성이 보였다. Celluclast로 증가하였고, Ultraflo 처리군을 제외한 나머지 효소처리군에서는 비슷한 양상으로 증가하였다. 시 소거능과 소거능은 않았고 유사활성은 모두 결과적으로 탄수화물 분해 처리함으로써 고형분, 항산화 물질의 추출률을 증가시키고 활성을 향상시킬 있음을 확인하였다.
To investigate the antioxidative potential of ramie (Boehmeria nivea L.) leaves, alcoholic extracts with different ethanol concentration were prepared. The extract obtained by using 70% possessed highest total phenolic content. extraction yield and content ethanolic 15.46% 105.0 μg chlorogenic acid equivalent (CAE)/mg, respectively. Therefore, antioxidant activities evaluated as 2,2diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity, reducing power nitrite ability. EC 50 value for...
Antioxidant activities of ethanol extracts from three types sweet potatoes with distinctive flesh color (white, orange, and purple) were investigated. Total phenolic content purple-fleshed potato (PF) was always 2- to 5-fold higher than those white-fleshed (WF) orange-fleshed (OF). 2,2-diphenyl-1-picryl-hydrazyl free radical scavenging activity 70% highest (EC50 = 0.179 mg/mL) for PF lowest 2.127 OF. And then, reducing power also 0.236 1.587 WF. closely related the amount total phenolics....
This study was performed to elucidate the effect of a lipid-soluble ginseng extract (LSGE) on cancer invasion and metastasis. The LSGE, even at noncytotoxic concentrations, potently inhibited migration B16F10 mouse melanoma cells in dose-dependent manner. In presence 3 μg/mL were significantly by 98.1% 71.4%, respectively. Furthermore, LSGE decreased mRNA protein levels matrix metalloproteinase (MMP)-2 cells, leading decrease MMP-2 activity. After intravenously injected tail vein C57BL/6...
Au nanoparticles stabilized by poly(methyl methacrylate) (PMMA) were used as a catalyst to grow vertically aligned ZnO nanowires (NWs). The density of NWs with very uniform diameter was controlled changing the concentration Au-PMMA (NPs). in direct proportion NPs. Furthermore, growth process using NPs systematically investigated through comparison that thin film catalyst. induced polyhedral-shaped bases separated from each other, while formed continuous network NWs. This approach provides...
Hemoglobin was hydrolyzed with Esperase and Flavourzyme as the endopeptidase exopeptidase, respectively. The solubility of heme-iron enriched peptide fraction decreased degree hydrolysis hydrolysate increased. When pH a adjusted to 5.0 after simultaneous two enzymes, nearly zero, 98% recovered precipitate. These results indicated that an effective separation method for production could be established by adjustment hemoglobin high hydrolysis.
Yogurt was prepared with different substitution ratio [10, 30, and 50% (w/w)] of skim milk enzymatically hydrolyzed purple sweet potato powder (EHPSPP) fermented at 40°C for 15 h. Fermentation characteristics antioxidant activities the yogurt were evaluated in terms acid production (pH titratable acidity) lactic bacterial counts DPPH radical scavenging activity, respectively. After h fermentation, acidity EHPSPP 0.80?0.89% lower than that (0.93%) made without EHPSPP. The number viable cell...
클로렐라를 식품재료로 사용하기 위하여 클로렐라 분말을 0-0.1% 첨가한 물김치를 제조하여 $15^{\circ}C$ 에서 6일간 발효시키면서 이화학적, 미생물학적 및 관능적 특성을 조사하였다. pH는 발효 3일만에 급격하게 감소하여 0.1%를 경우 pH 6.31에서 3.89로, 대조구는 5.98에서 3.83으로 하락하였으며, 감소정도는 첨가량에 비례하였다. 적정산도는 발효가 진행됨에 따라 모든 처리구에서 증가하였으며, 변화와 동일한 경향이었다. 대부분의 환원당 함량은 초기 최대값을 보인 후 감소하였으나 0.1%의 큰 변화가 없었다. 젖산균 수는 발효초기에 급속하게 특히 물김치에서 매우 빠르게 증가하였다. 관능검사 결과, 첨가는 물김치의 맛과 종합적인 기호도를 증진시키는 효과를 나타내었다. $4^{\circ}C$ 19일간 저장하는 동안 거의 없었으며 약간 증가하였고, 전체적으로 $10^7CFU/g$ 이상으로 유지되었다. 관능평가의 결과와 저장성을 고려하면 클로렐라의 첨가량은...