한국산 인삼의 Polyphenol 분획물의 항산화, Phospholipase $A_2$ 및 암세포증식 억제효과

최희진,한호석,박정혜,손준호,배종호,성태수,최청,Choi, Hee-Jin,Han, Ho-Suk,Park, Jung-Hye,Son, Jun-Ho,Bae, Jong-Ho,Seung, Tae-Su,Choi, Cheong 한국응용생명화학회 2003 한국농화학회지 Vol.46 No.3

한국산 인삼을 60% acetone으로 추출하여 Sepadex LH-20 gel column chromatography, MCI-CHP 20 gel column chromatography, ${\mu}-Bondapack\;C_{18}$ gel column chromatography을 이용하여 polyphenol 분획물을 3종류를 분리하여 항산화 효과, phospholipase $A_2$ 저해효과 및 암세포 증식억제 효과를 검토하였다. 항산화 효과에서 분획물 I은 150 ppm에서 $Cu^{2+},\;KO_2$ 그리고 $H_2O_2$에 대하여 각각 48.16%, 79.71%, 43.55%를 나타내었고 DPPH 수소공여능은 분획물 II가 200 ppm에서 35.17%의 라디칼소거능을 보였다. 분획물 III는 $Fe^{2+}$, OH가 존재 시 150 ppm에서 48.49%, 25%의 항산화효과를 나타내었다. Phospholipase $A_2$ 저해활성은 분획물 III이 $60\;{\mu}/ml$에서 48.9%의 활성을 나타냈다. HT 29 cell에 대한 인삼의 세포 독성은 분획물 II에서 0.25 mg/ml에서 73.29%의 가장 높은 억제능을 나타내었다. The polyphenol fractions of Korean ginseng were purified using Sephadex LH-20, MCI gel, Bondapak $C_{18}$ TLC, and HPLC from the 60% acetone soluble fraction. Fraction I showed 48.16%, 79.71% and 43.55% inhibition at 150 ppm against lipid oxidation in the presence of copper ion, superoxide and hydrogen peroxidation. Electron donating abilities of fraction II showed 35.17% inhibition at 200 ppm. Fraction III showed 48.49% and 25% inhibition at 150 ppm against lipid oxidation in the presence of ferrous ion and hydroxy radical ion. The phospholipase $A_2$ inhibitory effect of fraction III was 48.9% at the concentration of $60\;{\mu}g/ml$. The cytotoxic effects of fraction II was the highest (73.29% at 0.25 mg/ml) among the tested polyphenol fractions.

유화 작품 색맞춤용 재료 특성 연구 - 복원용 물감과 아크릴과슈를 중심으로 -

최희진,강대일,Choi, Hee Jin,Kang, Dai Ill 한국문화재보존과학회 2021 보존과학회지 Vol.37 No.5

유화 색맞춤에 사용되는 복원용 물감과 아크릴과슈에 대하여 물감별 특성을 파악하고 자외선 및 흡습건조 열화실험을 통하여 복원재료로서의 내구성을 확인하였다. 4개 제조사에서 제작된 총 20종의 물감을 사용하였으며 분석 결과 동일한 색명의 물감일지라도 제조사별 성분 및 발색 특성 차이가 존재했다. 이는 제조 시 체질, 착색 안료로 사용된 안료의 차이에서 기인한 것으로 판단된다. 열화 후 대부분의 시료에서 𝚫E^* 12.0 이상의 변색이 일어났으며, C사의 Viridian에서는 광택 변화도 관찰되었다. Lemon Yellow에서는 변색과 균열이 모두 관찰되었다. 균열은 복원용 물감인 B사의 것에서 가장 많이 발생했다. 이는 제조 시 사용된 수지의 영향인 것으로 추측되나 향후 정확한 원인 규명을 위해 변수를 통제하여 추가적인 연구가 진행되어야 할 것이다. 연구를 통해 색맞춤용 재료의 색 및 제조사에 따른 물리적 특성 차이가 확인되었으므로, 유화 보존처리자는 색맞춤 시 재료별 변색, 균열, 광택 변화와 같은 물리적 특성을 고려하여 복원재료의 선정 및 사용에 신중해야 할 것이다. In this study, we compare the properties and estimate the durability of five oil colors that are the most popularly used colors in the conservation of oil paintings. A set of these colors was obtained form four manufacturers each, and their properties were analyzed by conducting deterioration experiments. Subsequently, we observed the colors and performed X-ray fluorescence analysis. As a result of colour observation and XRF analysis, it was confirmed that there are the differences according to the pigment types, mixing rations and the manufacturers even for colors having the same product name. The deterioration test indicated differences in the appearance of the colors ; for instance, the color difference was above 12.0 in most of the samples, including restoration color and acrylic gouache. In the case of Lemon Yellow a lot of discoloration and cracking occurred, and difference in gloss was ob served in Viridian of manufacturer C. Most cracks were ob served in the restoration color obtained from manufacturer B and were assumed to be because of the resin used by the manufacturer. Nevertheless, additional research will have to be conducted by controlling variables in order to find out the cause. Through this study, we demonstrated that retouching materials for conservation of oil painting differed in their physical properties according to the color and manufacturer. Therefore a conservator should be mindful during the selection and use of materials for retouching oil paintings.

집적영상 방식 3D 디스플레이의 최적 입체감에 관한 분석

최희진,Choi, Hee-Jin 한국광학회 2012 한국광학회지 Vol.23 No.1

In this paper, an analysis of the optimized 3D depth of integral imaging is proposed. We achieve this by calculating the amount of image distortion and considering the threshold of recognition in the human visual system. Experimental results are also provided to test the theory. 본 논문에서는 집적영상방식 3D 디스플레이에서 문제점으로 지적되고 있는 입체감 증가에 따른 영상의 왜곡을 분석하고 인간 시각계의 인지한계에 근거하여 최적입체감을 구현할 수 있는 영역을 제안한다. 또한 실험결과를 통하여 이를 검증하였다.

국내 미용조직의 현황 및 개선안 연구

최희진 ( Hee Jin Choi ),김성남 ( Sung Nam Kim ) 한국미용학회 2007 한국미용학회지 Vol.13 No.2

The beauty industry is nomore focused on only hairdressing, it`s been changed in many ways. Untill today, there is some associations are established which is exactly same value of ``korea central beauticians`s association``. The result of this happen is ineffective managing from ``korea central beauticians`s association``. They could not accept the alteration of their own industry, as every single specialize is grew. Soon, the new specializes are coming up continuously. If the central association is disjonit, and each specializes are indepandently establishing a new association. Then, Beauty industry and beauticians will confused about their identity. Also at the end of ``korea central beauticians`s association`` will falling down to hairdressing association. Recently, beauty industry required effective reorganization for new specializes. Through this thesis, suggesting that the beauty and beautician``s find out their identities and reorganize an association that lead the industry and restore beauticians adventages. From this, there is a century mission of ``hanryu`` for bulit a success beauty brand like United Kingdom`s ``Vidal sassoon`` and ``Pivot point`` from United State.

Permanent Wave Lotion 류(類)의 혼합 비율에 따른 모발의 컬 형성 및 역학적 특성

최희진 ( Hee Jin Choi ),나명석 ( Myung Suk Na ) 한국미용학회 2008 한국미용학회지 Vol.14 No.1

For the study that these problems are basic this study mixed the thioglycolic acid and cysteine which are usually used as processing solution along with the appropriate ration to compare and analyze the dynamic property in virgin hair(V-HR), coloring hair(C-HR) and bleaching hair(B-HR) following the wave formation of the hair with the following conclusion. Curl formation of hair all appeared greatly virgin hair, coloring hair, bleaching hair according to increase of content ratio of thioglycolic acid. Bleaching hair has the lease of gloss compared to other waves, and the quality of entire hair is loosened with narrow wave width. However, it has the largest wave formation than virgin hair or coloring hair. The virgin hair which an exposure does not become to a medication regardless of mixing ratio rates of a permanent processing solution curl wave formation dropped than coloring hair, bleaching hair. Therefore, in order to give the wave of healthy hair, it is advantageous to use the thioglycolic acid agent; and in case of the damaged hair, it would be more prudent to use the cysteine agent. In general, it is known that the damage of hair is greater when applying the thioglycolic acid perm than that of applying with the cysteine perm. However, the change rate of dynamic property results tensile strength of hair and the coefficient of expansion a large difference was not after coating with a permanent processing solution at regular mixed ratio on sample ore hair. However, did not operate, and permanent showed with a large difference in comparison with control. Therefore, generate a lot of problems, and a chemical process of a way of permanent surgical operation and virgin hair is thought to healthy hair management. In experiment of this study, the sample hair is limited to one person and the type of perm and the number of application have the limitation in one application; however, it is hoped that, with this study as the foundation, more specialized and expert data would continuously established under the various working conditions.

Curling Rod의 종류에 따른 Permanent Wave 형성정도(形成程度)의 준거값 제시에 관한 연구

최희진 ( Hee Jin Choi ),조지훈 ( Ji Hoon Cho ),나명석 ( Myung Suk Na ) 한국미용학회 2008 한국미용학회지 Vol.14 No.3

There are a number of preceded researches about the permanent wave however, there is no study regarding the standard value of the wave formation extent according to the rod number after researching about how the wave formation extent is influenced by the hours of operation using the same number of rods. In spite of the importance of the standard value, there is no study about it until now, so we performed this study in order to offer the basic materials and the right decision about it which has never been done before. For the empirical study, we performed frequency analysis and figure out percentage to get the result value after survey of professional group and non-professional group centering around the subject of this study. Question results, in case of setting a wave with the rod number of 1~5, we can define as ‘the wave formation rate is high’ up to 30~40% of the formation extent and also we can define as `the wave formation rate is low` up to 20% of the formation extent. Also we can define as `the wave wasn`t formated at all` up to 10% of the formation extent. In addition, in case of setting a wave with the rod number 6~10, we can define as ‘the wave formation rate is high’ when the wave is formated up to 40~50%. We can define as ‘the wave formation rate is low` when the wave is formated up to 30%. And up to 20% of the wave formation, we can define as `the wave isn`t formated at all`.

현대 미용조직의 현황 및 개편안 연구

최희진 ( Hee-jin Choi ),김성남 ( Sung-nam Kim ) 한국미용예술경영학회 2007 미용예술경영연구 Vol.1 No.2

The beauty industry is nomore focused on only hairdressing, it's been changed in many ways. Untill today, there is some associations are established which is exactly same value of 'korea central beauticains's association'. The result of this happen is ineffective managing from 'korea central beauticains's association'. They could not accept the alteration of their own industry, as every single specialize is grew. Soon, the new specializes are corning up continuosly. If the central association is disjonit, and each specializes are indepandently establishing a new association. Then, Beauty industry and beauticians will confused about their identity. Also at the end of 'korea central beauticains's association' will falling down to hairdressing association. Recently, beauty industry required effective reorganization for new specializes. Through this thesis, suggesting that the beauty and beautician's find out their identities and reorganize an association that lead the industry and restore beauticians adventages. From this, there is a century mission of 'hanryu' for bulit a success beauty brand like United Kingdom's 'Vidal sassoon' and 'Pivot point' from United State.

품종별 감잎 (Diospyros kaki folium)의 성장에 따른 성분변화

최희진(Hee-Jin Choi),손준호(Jun-Ho Son),우희섭(Hi-Seob Woo),안봉전(Bong-Jeon An),배만종(Man-Jong Bae),최청(Cheong Choi) 한국식품과학회 1998 한국식품과학회지 Vol.30 No.3

한국형 가족기능도 척도 개발 연구

최희진(Choi Hee-Jin),유영주(Yoo Young-Ju) 가정과삶의질학회 2003 가정과삶의질연구 Vol.21 No.3

세대 간 지원교환의 장기적·단기적 호혜성

최희진(Choi Hee jin),한경혜(Han Gyoung hae) 한국노년학회 2017 한국노년학 Vol.37 No.1

본 연구는 생애과정관점에 기초하여 세대 간 지원교환에서 단기적 호혜성과 장기적 호혜성의 원리가 관찰되는지 확인하고, 자녀의 젠더에 따른 차이를 비교하는 것을 목적으로 한다. 장기적 호혜성을 살펴보기 위하여 자녀가 성인기 전이과정 동안 부모에게 경제적 지원을 받은 정도가 중년이 된 자녀가 노부모에게 지원을 제공하는데 영향을 미치는지 확인하였고, 단기적 호혜성이 발견되는지 알아보기 위하여 현재 중년자녀가 노부모에게 지원을 받고 있는 것과 자녀가 노부모에게 지원을 제공하는 행동 사이의 관련성을 살펴보았다. 본 연구는 ‘한국 베이비부머 패널 조사’ 2차년도(2012년 수집) 자료 중 자신의 부모 중 적어도 한 명 이상 생존하고 있는 베이비부머 남성 731명과 여성 893명을 연구대상으로 하였으며, 기술분석과 이항로지스틱 회귀분석을 실시하였다. 연구결과 첫째, 아들은 딸에 비해 성인기 전이과정 동안 부모에게 더욱 높은 수준의 경제적 지원을 받은 것으로 나타났지만, 성인기 전이과정 동안 더 많은 경제적 지원을 받은 경험과 중년이 된 아들이 노부모에게 경제적지원이나 도구적 지원을 제공하는 행동 사이에는 관련성이 없는 것으로 나타나 장기적 호혜성이 발견되지 않았다. 둘째, 아들과 노부모 사이의 관계에서 단기적 호혜성이 발견되었다. 셋째, 딸이 노부모에게 도구적 지원을 제공함에 있어 단기적 호혜성과 장기적 호혜성의 원리가 모두 발견되었다. 성인기 전이과정 동안 더 많은 경제적 지원을 받은 경험과 현재 노부모에게 지원을 제공받고 있는 것은 중년의 딸이 노부모에게 도구적 지원을 제공할 가능성을 높이는 것으로 확인되었다. 넷째, 딸이 노부모에게 경제적 지원을 제공하는 행동에 있어서는 단기적 호혜성과 장기적 호혜성의 원리가 모두 발견되지 않았다. 딸이 노부모에게 경제적 지원을 제공하는 행동은 아들의 경우와 마찬가지로 자녀가 보유한 경제적 자원과 노부모의 경제적 필요와 밀접하게 관계되는 것으로 나타났다. 본 연구를 통해 중년자녀가 노부모에게 지원을 제공함에 있어 장기적·단기적 호혜성의 원리가 나타나는 것을 확인했으며 이러한 원리가 자녀의 젠더와 지원영역에 따라 다르게 나타날 수 있음을 발견하였다. 본 연구는 한국의 맥락에서 자녀의 젠더에 따라 다르게 주어지는 부양책임을 고려하고, 보다 장기적 시각에서 세대 간 지원교환의 호혜성 원리를 살펴보았다는 점에서 의의를 갖는다. 후속연구에서는 보다 다양한 영역을 고려하여 장기적 호혜성을 바라보고, 세대관계가 놓인 친족관계 맥락으로 시각을 확장하는 것이 필요할 것이다. Expending on a life course perspective, this study explores the long-term and short-term reciprocity in parent-child relationships in Korean context. Since the reasons for providing filial support are believed to differ by gender, we focused on how a child’s gender affects both types of reciprocity. Data were collected from middle-aged sons (N=726) and daughters (N=883) with at least one surviving parent. Logistic regression was then conducted in order to examine the relations between the support a child currently provides to parents and the current or previous support received from the parents. Dependent variables are financial and instrumental support that middle-aged child currently provide to the parents. The financial and instrumental support a child received from the parents within a year are included in the model as an independent variable to assess short-term reciprocity. The level of financial support a child has received during the transition to adulthood process is included in the model as a independent variable to explore long-term reciprocity. Result supports the existence of gender differences in the long-term reciprocity. Daughters provided instrumental support in response to the financial support that they had received from parents during the transition to adulthood process. However, for sons, this tendency was not found. When it comes to financial support, long-term reciprocity was observed neither for the sons nor for the daughters. Both sons and daughters are prone to provide financial support to the aged parents regardless of the level of financial support they had received during the transition to adulthood process. Short-term reciprocity was found both in sons and daughters. when they have been receiving a financial or an instrumental support from the aged parents within a year, they tend to provided instrumental support to the parents. This study shows that the aged parents still fulfill the reciprocal relationship to a certain degree. Secondly, we can conclude that the norm of reciprocity interplays with the norm of filial responsibility in contemporary Korea.