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황종택,강한철,김태수,박원종 한국식품영양학회 1999 韓國食品營養學會誌 Vol.12 No.2
포도씨의 조지방질 함량을 분석한 결과 조지방질 함량은 평균 28.6%이었고, Steuben 품종이 32.0%로 가장 높았다. 지방산 조성은 리놀레인산 70.75%, 올레산 18.48%, 스테아르산 2.01%, 팔미트산 8.45%로 구성되어 있었으며 Jingyu 품종에서 스테아르산이 적었고, Fugiminori 품종은 올레산이 많았다. 중성지방질의 평균함량은 87.25%, 당지방질은 4.68%, 인지방질은 8.06%로 구성되었다. 조단백질 평균함량은 11.2%로 품종간의 차이를 나타냈으며, Neo muscat이 15.7%로 가장 높은 함량을 나타냈다. 총당은 2.35∼5.63㎍/㎎이었고 환원당 평균함량은 3.20㎍/㎎을 나타냈다. 포도씨 조지방질의 평균 검화가는 186.3㎎·KOH/g·oil이었고 Kyoho 품종이 230으로 가장 높았다. 포도씨 기름의 항산화력이 참깨보다 우수하여 DPPH 환원 능력은 평균 27%가 높았다. 그러나 180℃로 가열한 후의 포도씨와 참깨씨 조지방질들은 비슷한 산패도를 나타냈다. The possibility of grape seeds as industrial resources was tested by analyzing various chemical properties of their oils from seven different species. The range of crude oil content of the grape seeds was 26.0-32.0%, showing the highest content in Steuden. Mean individual fatty acid contents in the grape seeds were lioleic (70.75%), oleic (18.48%), stearic (2.01%), and palmitic (8.45%) acids. Stearic acid was low in Jingyu, and high oleic acid was found in Fugiminori, compared with other grape strains. Total lipids were consisted of nutral lipid (87.25%), glycolipid (4.68%), and phospholipid (8.06%). Content of crude proteins was approximatery 11.2% with some variation between strains. Total sugar content was 2.35∼5.63㎍/㎎ with reducing sugar 3.20㎍/㎎. Mean saponification value of crude oils was 186.3㎎·KOH·oil. Antioxidant activity of grape seed oils was better than that of sesame oil, resulting in the higher activity of reducing DPPH by 27%. Peroxide values, however, were similar between grape seed oils and sesame oil after heat treatment at 180℃.
박막형 MoO<sub>3</sub>가스센서의 가스 감지 특성 및 첨가물의 영향
황종택,장건익,윤대호 한국전기전자재료학회 2003 전기전자재료학회논문지 Vol.16 No.8
MoO$_3$thin films were deposited on electrode of alumina substrates in $O_2$atmosphere by RF reactive sputtering using molybdenum metal target. The deposition was performed at 30$0^{\circ}C$ with 350 W of a forward power in an Ar-O$_2$atmosphere. The working pressure was maintained at 3$\times$10$^{-2}$ torr and all deposited films were annealed at 50$0^{\circ}C$ for 5 hours. The surface morphology of films was observed by using a SEM and crystalline phases were analyzed by using a XRD. To investigate gas sensing characteristics of the doped MoO$_3$thin film, Co, Ni and Pt were used as dopants. The sensing properties were investigated in term of gas concentration under exposure of reducing gases such as H$_2$, NH$_3$and CO at optimum working temperature. Co-doped MoO3 thin film shows the maximum 46.8 % of sensitivity in NH$_3$ and Ni-doped MoO$_3$thin film exhibits 49.7 % of sensitivity in H$_2$.
박원종,박희용,황종택,강한철,도중진 공주대학교 자원과학연구소 2000 資源科學硏究論文集 Vol.8 No.-
Among the various for the extraction of grape seed oils, pressing extraction method resulted in 34.0%, being the least recovery. But roasting plus sludge roasting showed 68.3% followed 66.5% by roasting plus steaming of sludge and 64.3% by roasting plus steaming. Ether extraction resulted more recovery, showing 77.4% and 80.9% after 24/hr. and 48/hr. of suspension. The Optimal extraction methods were as followed. Grape seed → washing → drying → roasting(90~100℃ at 20 min.) → cooling(room tem.) → grinding(0.5㎜>) → steaming(0.8~0.9㎏?f/㎠ at 10 min.) → pressing(step by step, 1st 400㎏/㎠ at 2~3 min., 2nd 550~600㎏/㎠ at 5~10 min., 3rd 700㎏/㎠) →grape seed oil(extracted 85~90%). Sensory evaluation revealed that grinding plus roasting oil showed the most favorable result followed roasting plus sludge steaming, roasting plus steaming.
포도원에 발생하는 이슬애매미충과 이마점애매미충의 생태적 특징
안기수,김황용,이기열,황종택,김길하,Ahn, Ki-Su,Kim, Hwang-Yong,Lee, Ki-Yeol,Hwang, Jong-Tack,Kim, Gil-Hah 한국응용곤충학회 2005 한국응용곤충학회지 Vol.44 No.3
충북지역을 중심으로 이슬애매미충과 이마점애매미충의 발생생태 및 기주식물을 조사한 결과, 이들은 5월 초순부터 포도원에 들어와서 포도 잎을 가해하기 시작하며, 대체로 6월 하순과 8월 중순 경에 높은 밀도를 보였다. 이후 이슬애매미충은 10월 초순부터 월동하기 적당한 수피를 찾아서 인근 숲으로 이동하였고, 이마점애매미충은 9월 하순부터 포도원 주변의 잡초로 이동하였다. 충청북도 5개군의 발생조사에서, 두 종 모두 옥천지역에서 많이 발생하였다. 발육기간은 이마점애매미충이 이슬애매미충보다 짧았다. The occurrence and the host plants of Arboridia kakogawana and A. maculifrons in the province of Chungcheonbuk-Do were observed. They started to infest grapevine in a vineyard in early May and reached peak population two times once in late June and once in mid August in general. In preparation for overwinter, A. kakogawana moved to the nearby forest in search of a tree with bark from early October. A. maculifrons also moved to the weeds on the ridge of vineyard circumferences from the end of September. Population density of the two species were found to be the highest in Okcheon county among the five counties of Chungbuk province. Developmental period of A. kakogawana was shorter than that of A. maculifrons.