Oil Contents and Fatty Acid Composition of Korean Perilla (Perilla ocimoides L.) Collections

Hong,Seong-Taek,Son,Suk-Yeong,Jong,Seung-keun,Rho,Chang-Woo,Yun,Jong-Sun 한국자원식물학회 2003 Plant Resources Vol.6 No.3

This study was carried out to obtain informations on the variations of oil content and fatty acid composition among 90 Korean perilla collections. Average oil content of 90 perilla collections was 44.2% with a range from 29.7% to 61.9%. Perilla collections with late-maturing, super-large seed and gray seed coat showed higher oil content than other types in general. Average saturated fatty acid content in perilla oil was 9.0% with a range from 8.2% to 10.7%, while average unsaturated fatty acid content varied from 89.3% to 91.8% with a mean of 91.0%. Contents of saturated and unsaturated fatty acids were not related to maturity. There were no differences in the contents of saturated and unsaturated fatty acids according to maturity. Linoleic acid and linolenic acid contents were the highest in the super large-sized group(15.5%) and in the large-sized seed group(61.4%), respectively, while contents of fatty acids among the perilla collections were variable with different seed coat colors. Most of the traits studied were not significantly correlated with oil content, but linoleic acid($\omega$ 수식 이미지-6) content was negatively correlated (r=-0.217*) with linolenic acid(ω-3) content.

국내도매여행업 브랜드의 이미지 포지셔닝에 관한 연구

홍규선,안택균 문화관광연구학회 2001 문화관광연구 Vol.3 No.1

The purpose of this study was to evaluate positioning of the brand image in travel industry. To achieve the purpose of this study, theoretical and empirical study was used. In review of theoretical background, basic concepts and strategy of brand image positioning were studied. Based on the theoretical studies and previous studies, brand image attributes were chosen. An empirical study was conducted with cases of Hana Tour, Freedom Travel Service, Mode Tour, High-Sense Travel Service, Lotte Tour, Hanjin Travel Service. And a list of questions in five categories-brand similarity, perception for attributes, brand image preference, importance for attributes, and personal characteristics of respondents-were constructed and tested. In this research 8 brand images attributes was discussed, they are easiness of remember, easiness of pronunciation, familiarity of brand, good thoughts of brand, freshness(newness) of brand, speciality(originality) of brand, an attribute in connection with product price, an attribute in connection with product quality. The ultimate objectives of this study is to suggest the effective direction to set up a brand positioning strategy by using brand images. But this study had limits on sampling was extracted six travel agencies because of time limitation. Therefore, the more systematic and continuos study should be executed to overcome those kind of limits.

경피적 승모판 성형술 후 교감신경계 활성도의 변화

홍택종,안병재 대한순환기학회 2003 Korean Circulation Journal Vol.33 No.12

솔잎발효추출물의 효소적 저해활성 및 아질산염 소거작용

홍택근,이용림,임무현,정낙현 한국식품저장유통학회 ( 구 한국농산물저장유통학회 ) 2004 한국식품저장유통학회지 Vol.11 No.1

솔잎의 기능성에 관한 연구를 위하여 솔잎발효추출물(PFE)과 에탄올추출물(PE 80, PE 50)로 효소적 저해활성과 아질산염 소거작용에 대하여 연구하였다. Tyrosinase의 저해효과는 솔잎발효 추출물인 PFE가 솔잎 에탄올 추출물 PE 80과 PE 50에 비해 약 5∼38%정도 저해활성 효과가 높게 나타났다. XOase 저해효과는 PFE가 62.77%, PE 80이 64.90%, PE 50이 55.91%의 저해율을 나타내였으며 ACE저해효과는 PFE가 78.02%, PE 80이 69.82%, PE 50이 21.75%의 순으로 솔잎발효 추출물인 PFE가 가장 높은 저해효과를 나타내었다. 아질산염 소거작용은 솔잎추출물 모두 pH 3.0이하에서 높은 분해능력을 나타내였다. 유기산 함량 분석 결과, PFE, PE 80, PE 50의 세 시료 모두 항산화작용에 관여하는 ascorbi acid가 가장 많이 함유되어 있었으며, 시료별 ascorbic acid의 함량은 솔잎 발효추출물인 PFE가 가장 많이 함유되어 있는 것으로 나타났다. Effects on the physiological functionality, such as tyrosinase, xanthine oxidase, angiotensin converting enzyme and Nitrite scavenging ability were also observed by pine needle fermentation extract(PFE) and the difference in the consistency of pine needle ethanol extracts(PE 80, PE 50) was found. In the inhibition effect on tyrosinase, PFEP showed 5-38% higher than that of PE 80 and PE 50. In the inhibition on XOase, PFE, PE 80 and PE 50 showed 62.77%, 64.390%, 55.91% respectively. In the inhibition effect on ACE, PFE, PE 80 and PE 50 showed 78.02%, 69.82% and 21.75% respectively. Among these, PFE showed the highest ACE inhibition effect. In the inhibition effect on nitrite scavenging anility, the pine needle extracts showed a high effect in pH 3.0. As the result of the research using HPLC for the organic and, all the samples(PFE, PE 80, PE 50) showed higher contents of the ascorbic acid concerned with the effect of the antioxidative. PFE showed the highest contents of the ascorbic acid.

구리 지역에서 조사한 고혈압의 인지도, 치료률 및 관리률

홍철호,김순길,홍택원,이제,신진호,이재웅,김경수,김정현,임헌길,이방헌 대한간질학회 2003 대한간질학회지 Vol.9 No.1

횡하중을 받는 CIDH말뚝의 회전이동에 따른 수동토압의 변화

金洪澤 弘益大學校 1988 弘大論叢 Vol.20 No.2

An analytical solution procedure is described to estimate the developed passive lateral earth pressures against a laterally loaded cast-in-drilled-hole pile rotating near about its middle height into a mass of cohesionless soil. Various stages of pile rotation, from an at-rest state to an initial passive state to a full passive state, are considered in the analysis. Based upon the equilibrium of a tetrahedron-shaped soil failure wedge and the Mohr-Coulomb failure criterion, the necessary equations for solution are obtained. Variation of the soil strength and the point of rotation due to rotational movement of a pile are also taken into account in the analysis. Finally, the results predicted by the developed method of analysis are compared with those obtained from the experimental model tests on sand. The comparisons show in general good agreements at various stages of a pile movement.

산사태 억지벽체공법에 관한 연구

金洪澤 弘益大學校 科學技術硏究所 1994 科學技術硏究論文集 Vol.5 No.-

This paper proposes a stabilizing method against landslide using slide suppressor wall reinforced with soil nails. Included are a procedure to predict earth pressures acing on the concrete panel and a method of analysis of the stabilizing pile. Based on the proposed procedure, the efficient installation type and inclusion angle of nails are analyzed. Also, optimum location of the slide suppressor wall composed of concrete panel and stabilizing pile is analyzed. Finally the comparison with a method proposed by Wright is made, and the effect of interactions between stabilizing piles is examined, throughout the design example.

강성벽체의 수평이동에 따른 발생토압의 변화

金洪澤 弘益大學校 1990 弘大論叢 Vol.22 No.2

An analytical solution method is described to estimate the developed static horizontal earth pressures behind a vertical rigid wall experiencing inward translational movement. Condition of failure defined by a modified Mohr-Coulomb criterion, together with hyperbolic function to define the variation of sand shear strenth, is used in the analysis. The results predicted by the developed method of analysis are compared with those from the experimental model tests on loose or dense sands. The comarisons show good agreements at various stages of wall movement. Finally, a example is provided to illustrate the transition of horizontal earth pressures behind a rough rigid wall.

제주도산 노랑초파리(Drosophila melanogaster) 자연집단에 있어서 P-M system에 의한 Cytotype 분포

김원택,오홍식 濟州大學校 師範大學 科學敎育硏究所 1990 科學敎育 Vol.7 No.-

The frequency of the cytotype distribution of the P-M system was investigated in the natural populations of Drosophila melanogaster form 4 localities (Cheju, Sogwipo, Moseulpo, Sungsan) of Cheju-Island. The results are as follows : 1. The frequencies of M, Q, and M'(pseudo M) types are 17.95%, 33.01% and 49.04%, respectively. 2. The activities of M cytotype appered to be variable among 4 population, indicating M and Q cytotype. 3. The P factor activity for potential GD sterility is negligible in these populations.

생분해성 폴리락티드/글리콜리드 미립구를 이용한 재조합 소 성장호르몬(rBST)의 지속성주사제 설계

전홍렬,이봉상,권도우,윤미경,전현주,신택환,최영욱 한국약제학회 2002 Journal of Pharmaceutical Investigation Vol.32 No.3

In order to develope a sustained release formulation of bovine somatotropin(BST), which has been used to increase the body weight of oxen or the milk production of dairy cows, poly(D,L-lactide-co-glyceride)(PLGA) microspheres were made by W/O/W multiple emulsification method and solvent extraction method. Physical properties including particle size, drug entrapment, drug release, protein denaturation, and in vivo body weight increase in rats were characterized. The size of the microspheres was increased as the molecular weight of PLGA increased. When Span 65 and stearic acid during preparation were added, the size was decreased but the amount of surface protein was increased, resulting in a high loading efficiency, with fast release of BST from the microspheres. Aggregation of fragmentation of BST by SDS-PAGE during microspheres preparation and drug release study was not observed. Body weight of Sprague-Dawley's male rats was significantly increased after subcutaneous administrations of BST-loaded PLGA microspheres. There was a good correlation between in vivo weight gain and vitro release rate of microspheres. PLGA microspheres with a high surface protein ratio could be a good candidate for the sustained delivery of BST.