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- 저자 : 조항의 ( Hang Eui Cho ) (검색결과 4 건)
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미세먼지 자극에 의한 저온숙성 선인장 열매 추출물의 생리활성 연구
조항의(Hang-Eui Cho),강정욱(Jung-Wook Kang),최순호(Soon-Ho Choi),차영권(Young-Kwon Cha),유단희(Dan-Hee Yoo),김소은(So-Eun Kim),김효민(Hyo-Min Kim),최호민(Ho-Min Choi),조미래(Mi-Rae Jo),김지영(Jee-Yong Kim),이인철(In-Chul Lee) 한국인체미용예술학회 2020 한국인체미용예술학회지 Vol.21 No.1
Air pollutants can trigger various disorders in humans and induce skin aging effects, related cell death, and inflammation. This study demonstrated the effects of low temperature-fermented Opuntia Ficus-Indica Fruit extracts (LTOE) treated total suspended particles (TSP). LTOE induced the expression of pro-inflammatory cytokines such as tumor necrosis factor (TNF)-α, interleukin (IL)-8 without cytotoxicity. To investigate the anti-aging effect, LTOE inhibited the production of matrix metalloproteinase (MMP)-1 (collagenase) more than Opuntia Ficus-Indica Fruit extracts (OE) in TSP-treated Normal human fibroblast cells. This study reports the significant improvement of anti-inflammation and decrease of MMP-1 related to the LTOE, which will be helpful in processing cosmetic ingredients.
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Glyoxal/Aluminium Ammonium Sulfate를 이용한 면직물의 DP가공에서 첨가제의 영향
조항성,이범수,정성훈,이의소,Cho, Hang-Sung,Lee, Beom-Soo,Jeong, Seong-Hoon,Lee, Eui-So 한국섬유공학회 2006 한국섬유공학회지 Vol.43 No.4
When glyoxal was used as a crosslinking agent and aluminium ammonium sulfate as a catalyst for durable-press finishing, coreactants and additives to minimize the decrease of physical properties of durable-press finished cotton fabrics were studied. Also, optimum conditions such as coreactant/glyoxal mole ratio, the concentration of additives and the effects of one-bath and two-bath were investigated. Under the optimum concentration of DEG, the whiteness and strength retention of the fabrics treated with glyoxal/DEG/additive mixtures were increased while wrinkle recovery angles were decreased significantly. Under the optimum concentration of each additive, cotton fabrics were treated with various impregnation time in order to find the effect of two-bath method. The whiteness of cotton fabrics was increased by two-bath method, and wrinkle recovery angles were decreased either slightly or unchanged while the strength retention was not affected.
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실내 인테리어용 오크 무늬목의 산성염료 염색성 및 후가공 효과
조항성(Hang-sung Cho),심의진(Eui-jin Shim) 충북대학교 생활과학연구소 2022 생활과학연구논총 Vol.26 No.3
Background/Objectives: In this study, we compared and analyzed the dye ability of oak-patterned materials with acid dyes, and evaluated their performance as interior materials. Use of processed timber can help reduce environmental damage and the economic burden of resources (important problems with use of raw timber) and can meet the needs of various fields where the sensibility of raw timber is required. Veneer wood is positioned as a high-value-added product due to its luxury and beauty, and it is used in various fields as a building-related material, such as interior decoration, furniture, flooring, building interior materials, and lumber. Dyeing is necessary to enhance the aesthetic appearance of this pattern and to expand its use. Methods: As the wood used in the experiment, American red oak, which has marketability in the market, was selected. The spectral reflectance of each wavelength band was measured using spectrophotometer to evaluate the apparent concentration and dyeability of the dyed and fixed samples. Durability was evaluated by measuring rubbing and light fastness. Results: The oak pattern was dyed with 3 types of acid dyes and a comparative analysis was performed. The most suitable conditions are 95℃, 3 hours, and 3% o.w.f. In addition, evaluating resilience to daylight fastness, resilience to rubbing, fire resistance, and flame retardance, yielded results suitable for use as an interior material. Conclusion/Implications: It was confirmed that veneer can be dyed with acid dyes and used. It is hoped that this study will be used as basic data for dyeing veneer with acid dyes and synthetic dyes in the future. The results of this research are expected to contribute as basic data for the dyeing process of synthetic dyes.
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고전압 펄스 전기장 기술을 이용한 차가버섯 추출물의 피부 효능 증대 방법
성미경 ( Mi Kyung Sung ),강정욱 ( Jung Wook Kang ),정윤주 ( Yoon Ju Jeong ),김봉준 ( Bong Jun Kim ),조항의 ( Hang Eui Cho ),조현대 ( Hyun Dae Cho ) 대한화장품학회 2020 대한화장품학회지 Vol.46 No.3
본 연구에서는 고전압 펄스 전기장 기술을 사용하여 식물 내 유효성분과 피부 효능을 증대시키고자 하였다. 고전압 펄스 전기장을 전처리한 차가 버섯(Inonotus obliquus) 추출물을 제조한 후, 성분 측정과 피부 효능 평가를 수행하였다. 총 당과 폴리페놀 함량은 0.5 kV/cm에서 50 Hz, 25 Hz 전처리 추출물 순으로, 총 단백질 함량은 0.5 kV/cm, 25 Hz 전처리 추출물에서 상온 물 추출물과 에탄올 추출물보다 높게 측정되었다. DPPH 소거능 효과는 폴리페놀 함량 결과와 유사하게 0.5 kV/cm에서 25 Hz, 50 Hz의 전처리 추출물에서 가장 우수하였다. 피부 효능에서는 단백질 함량이 가장 높은 0.5 kV/cm, 25 Hz 전처리 추출물에서 sodium dodecyl sulfate (SDS)와 UVB에 대한 세포 보호효과가 가장 우수하였으며, 0.5k V/cm에서 50 Hz, 100 Hz 전처리 추출물에서 히알루론산 생성 촉진이 가장 우수하였다. 따라서 고전압 펄스 전기장 전처리 차가 추출물의 유효성분, 피부 효능이 증대하는 것을 확인하여 세포 보호 및 보습 효과가 있는 기능성 소재로의 개발이 가능하며, 이러한 green technology가 화장품 분야와 소재개발에 다양하게 활용될 수 있을 것으로 기대된다. In this study in order to develop new approaches we investigated using high voltage pulsed electric fields (PEF) technology to reduce the risks, protect the phyto-constituents and improve skin biological activities. After preparing a Chaga mushroom (Inonotus obliquus) extracts pretreated with PEF, components measurement and skin efficacy evaluation were performed. As a result of the content measurement, the content of polysaccharide and polyphenol were higher in the order of extracts treated with 50 Hz and 25 Hz at 0.5 kV/cm, and the content of protein was the highest in extracts treated with 25 Hz at 0.5k V/cm. Similar to the results of the polyphenol measurements, extracts treated with 25 Hz and 50 Hz at 0.5 kV/cm showed leading DPPH scavenging ability. The cell protection effect against sodium dodecyl sulfate (SDS) and UVB was finest in extracts treated with 25 Hz at 0.5 kV/cm, which had the highest protein content. And the hyaluronic acid synthesis was leading in extracts treated with 50 Hz and 100 Hz at 0.5 kV/cm. Therefore, the active ingredient of the high-voltage PEF pre-treatment Chaga mushroom extract can be developed as a functional material with cell protection and moisturizing effect, and such green technology is expected to be used in various fields of cosmetics and material development.
KCI
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