국내 수집 야생버섯류 추출물의 생리활성 비교

안기홍,한재구,김옥태,조재한,An, Gi-Hong,Han, Jae-Gu,Kim, Ok-Tae,Cho, Jae-Han 한국버섯학회 2021 한국버섯학회지 Vol.19 No.1

국내 자생하는 야생버섯 추출물의 생리활성 성분을 평가하기 위하여 각지에서 수집된 야생버섯 70% 에탄올추출물에 대한 DPPH 라디컬 소거능, 총 폴리페놀 및 총 플라보노이드 함량, 철 환원 항산화능, 환원력의 항산화 활성, 아질산염 소거능 및 야생버섯의 건조시료를 이용하여 베타글루칸 함량을 분석하였다. 본 연구에서 수집된 10종의 야생버섯류 중에서 영지(OK1362) 에탄올추출물의 DPPH 라디컬 소거능(73.2%), 총 폴리페놀 함량(28.9 mg GAE/g) 및 총 플라보노이드 함량(10.0 mg QE/g)철 환원 항산화능(0.134), 환원력(0.155), 아질산염 소거능(56.3%)이 다른 버섯류에 비하여 유의적으로 가장 높았다. 그 이외에도 아까시흰구멍버섯(OK1360), 광대버섯속의 A. lanigera (OK1398), 졸각무당버섯(OK1406)이 높은 항산화능 및 아질산염 소거능을 가지고 있음을 확인하였다. 또한 베타글루칸 함량은 영지(OK1362)가 25.2%를 나타내며 가장 높았으며, 그 외에 구름버섯속의 T. lactinea (OK1457)가 24.5%로 높은 것으로 나타났다. 본 연구의 결과는 국내 자생하는 야생버섯류 중 새로운 천연물 유래 생리활성 물질을 탐색하기 위한 기초자료로서 활용 가능성을 기대한다. The aim of the study was to obtain the extracts of various native wild mushrooms and select the useful resources though biological activity evaluation. The anti-oxidant potential, nitrite scavenging activity, and ��-glucan content of wild mushrooms collected from Eumseong and Bonghwa in Korea were investigated. Based on the results of this study, Ganoderma lingzhi (OK1362) showed the highest DPPH radical scavenging activity (73.2%), ferric reducing anti-oxidant power (0.134), reducing power (0.155), nitrite scavenging activity (53.6%), total polyphenol content (28.9 mg GAE/g), flavonoid content (10.0 mg QE/g), and ��-glucan content (25.2%) when compared to other wild mushrooms sampled in this study. In addition, it was confirmed that Perenniporia fraxinea (OK1360), Amanita sp. (OK1398), and Russula sp. (OK1406) had relatively high anti-oxidant and nitrite scavenging potentials. In conclusion, our results can provide fundamental data for extracting beneficial compounds from wild mushrooms.

지팡이의 높이가 체중 지지분포에 미치는 영향

옥준영,김진우,한우석,한재덕,안덕현 한국전문물리치료학회 2000 한국전문물리치료학회지 Vol.7 No.1

This study investigates the influence of cane length on the weight distribution of the elderly in a standing position. Thirsty participants were evaluated using two different cane lengths based on measurements of distal wrist crease to ground (WC cane), and distance of greater trochanter to ground (GT cane). A limloader was used to determine the weight distribution on the subject. It was found that 6.5% of body weight was supported on a GT cane and 7.7% of body weight supported on a WC cane in a standing position. Results suggests that more weight is distributed on a WC cane than a GT cane in the elderly.

봉지종류 및 괘대시기가 ‘원황’ 및 ‘화산’ 배 과실의 수확기 품질에 미치는 영향

정억근,이욱용,안영직,이혁재,황용수,천종필 충남대학교 농업과학연구소 2013 농업과학연구 Vol.40 No.2

We tested fruits quality and skin coloration of two pear cultivar ‘Wonhwang’ and ‘Whasan’ produced by bagging with different kinds of paper bags in the Cheonan area, Chungnam Province, Korea. The fruits were bagged at 35, 45, 55 or 65 days after full bloom (DAFB) with 3 kinds of double layer paper bag which consisted of grey color, yellow color and newspaper for outer layer. The great extent of light interruption was observed in grey colored outer paperbag among three kinds of paperbag which showed only 0.46% of lowest light transmittance when compared with 43.7% and 40.0% of yellow paper and newspaper, respectively. The development of skin redness (a*) increased with the delay of bagging time in two pear cultivars. But the fruits treated at 65 DAFB showed uneven coloration and excessive development of redness which represented low fruit external appearance value. Uniform flesh firmness was attained at the fruits bagged with grey outer color paperbag regardless of bagging time, although the fruit quality indices including soluble solids and titratable acidity did not change significantly by using different kind of fruit bags and bagging time in two pear cultivar. Based on our results, it was explained that the grey-colored fruit bag had positive effect on the development of skin coloration without any detrimental effect on fruit quality factors in ‘Wonhwang’ and ‘Whasan’ pears.

부산광역시 승용자동차 주행중 전신진동 및 소음도 평가

옥치상,모현주,정재열 高神大學校保健科學硏究所 1997 보건과학연구소보 Vol.7 No.-

There are many vibrations and noixes during vehicle use in urban although pavement road. Those are from engin vibarations, tire and wheel related vibrations. And the vibrations of vehicle use cause frequently las variation of road state. This study investivated the whole-body vibration and noise caused as variation of road state and speeds during automobile duiving in Pusan City, Korea Based on the results, exposure to whole body vibration and noise during vehicle use was higher at 70km/h than 50km/h in speed. On the floor of vehicle at speed 50km/h and 70km/h, the the mean values of energy equivalent acceleration and permissible exposure time by vebrational performance were 99.2cm/s²(1512.4 min), 200.3cm/s²(1939.5 min)in x axis ; 132.3cm/s²(1035.9 min),182.3cm/s²(1278.2 min) in y axis;87.1cm/s²(2774.6 min),234.8cm/s²(4196.4 min) in z axis, respectively. And on the seat of vehicle at speed 50km/h and 70km/hr,82.0cm/s²(597.1 min),63.2cm/s²(757.4 min), 157.2cm/s²(1286.8 min) in z axis, respectively. Permissible noise exposure time(PNET) caused during vehicle use were 80hr, 184hr in speed 50km/h and 57hr, 116hr in speed 70kn/h when doors were closed and open,respectively.

흰쥐에서 경피적 전기 신경자극이 신경병리성통증에 미치는 영향

유재욱,이은우,김봉옥,이배환,손진훈 大韓再活醫學會 1999 Annals of Rehabilitation Medicine Vol.23 No.3

중소도시 하수관거의 침입수량 및 수질오염 원단위 산정

김옥형,박승기,정재훈,임경호 公州大學校 工學硏究院 生産技術硏究所 2004 論文集 Vol.12 No.-

The volume of wastewater in combined sewers in study areas usually exceeds capacities of the sewer system or the treatment plant during storms. For this reason, combined sewer systems are designed to overflow occasionally and discharge excess waste water. The 6 monitoring sites were selected from two small cities near the Hongsung prefecture during over a rainy season. Monitoring was performed by collecting grab samples and by measuring the rainfall and flow rates during dry and wet seasons. Generally the flow rate of wastewater in combined sewers was rapidly decreased after 23:00 PM and gradually increased from 06:30 AM in all sites during the dry season. Due to monitoring and statistical analysis, the groundwater contributes on sewage volume increase (average 3.4-25.4% more) during experimental periods. Therefore, this research is focus on the investigation of the effects of stormwater and groundwater to combined sewer systems.

소양호에서 질화작용활성도의 일 변화

이옥재,안태영 단국대학교 1997 論文集 Vol.31 No.-

Ammonia oxidizing bacteria associated with the nitrification activity were 144 to 1,860 MPN/100㎖ (mean : 755 MPN/100㎖) in April, 300 to 9,200 MPN/100㎖ (mean : 2,062 MPN/100㎖) in June and 220 to 1,060 MPN/100㎖(mean : 520 MPN/100㎖) in August. Nitrite oxidizing bacteria which were also relative to the nitrification activity were 122 to 780 MPN/100㎖ (mean : 361 MPN/100㎖) in April, 200 to 22,000 MPN/100㎖ (mean : 3,792 MPN/100㎖) in August. The value of ammonia and nitrite oxidizing bacteria was significantly high in June. The range of nitrification activity showed that 0.01∼0.85 ㎍-N/ℓ/day (mean : 0.13 ㎍-N/ℓ/day) in April, 0.18∼1.8 ㎍-N/ℓ/day (mean : 0.78 ㎍-N/ℓ/day) in June and 0.05∼1.14 ㎍-N/ℓ/day (mean : 0.56 ㎍-N/ℓ/day) in August, respectively. Diurnal variation of the nitrification activity was correlated with water temperature(r=0.537, p〈0.05), ammonia-N(r=0.379, p〈0.05) and chlorophyll-a(r=0.399, p〈0.05), respectively.

養護敎師의 初等學生에 대한 肥滿管理

朴宰用,朴賢玉 韓國學校保健學會 1999 韓國學校保健學會誌 Vol.12 No.2

The purpose of this study is to find out problems in obesity management through survey and analysis of the actual conditions from the view of a elementary schools school-nurses and to establish fundamental data for efficient obesity management. The subjects for this study were 313 numbers of elementary school-nurses in Kyung-Sang-Pook-Do. The data were collected through mail questionaries from November 1 to November 30,1997. The major findings in this survey were as follows:49.8% of the school-nurses who responded in the survey were in their 30s. The average career was 7.3years. The average service duration in their present school was 2.3years 55.6% of them were serving at schools which have less than ten classes total. 77.2% of them were serving rural areas, 79.6% of them were serving at schools with fewer than 100 obese students. The total obesity prevalence rate was 11.4%, 13.3% were girls, 9.3% were boys. The measurement of height and weight is performed once a year for all surveyed students(91.7%), but obese students were measured as much five times(51.1%). The rate of obesity management planning was 74.1%,however the rates of evaluation and role assignment were 41.2%, and 24.3% 79.6% of the surveyed schools have health education classes for obesity, the rate compared(8.0 periods per year) to the whole of health education(79.1 periods per year) is 10.1%. 99.9% of the schools had counseling rooms for obesity (combined with nursing rooms) but they were used. The roote of individual counseling was 84.3%. The frequency counseling was six times a year for about 15 minutes. Obesity counseling records were kept 93.6% of the time and individual information cards were kept 98.7% of the time. The frequency of parents counseling was 42.8% and the survey shows that the main problem here was insufficient counseling facilities. The frequency of dietary guidance and exercise therapy was 84.3% and the dietary instructor was usually the school nurse at 51.7%. The frequency of obesity student exercise was 1~2 times a week and more-than-10minutes at a time. They skip rope during the morning self-study class. The number on problem of exercise guidance at 56.2% was students' non-cooperativeness. School-nurses,87.9%, answered that obesity management at school is necessary and 86.9% mentioned the shortage of obesity related information in present physical exercise books. From the plural responses of executing the obesity management, there are many similar problems; lack of knowledge and non-cooperation in parents at 41.9%, is predominant followed by of knowledge and non-cooperation in the children. The third problem is the lack of funds and facilities.

陜川 苧浦里 E地區 發堀調査槪報

全玉年,禹順姬,安在晧,金斗喆 嶺南考古學會 1987 嶺南考古學 Vol.- No.3

국민학교 「자연」 교과서 개발체제 분석 및 평가 연구

우종옥,정완호,권재술,최병순,정진우,허명 한국교원대학교 과학교육연구소 1992 청람과학교육연구논총 Vol.2 No.1

Elementary science textbooks are the major instructional materials which contain sceientific objectives to be acquired by students. The purpose of this study is to analyze the development system, to evaluate the inquiry activity in current elementary science testbooks, and to make suggestions for the improvement of them. The questionnaires were administered to 116 subjects that participated in development of the 5th elementary science textbooks, and 86 of the subjects responded. Based on the data gathered and analyzed in this study, the major findings are as follows. First, regarding the analysis and evaluation of elementary science textbooks. 1. The instructional objectives in elementary science textbooks are analyzed. The proportions of comprehension objectives is 38%, scientific inquiry process objectives 21%, experimental skills objectives 7%, scientific attitudes and interests objectives 4%. 2. The science concepts in elementary science textbooks of the 3rd grade required the preconcrete operational level(82%) and of the 6rd grade required the postconcrete operational level (73%) by J. Piaget. 3. The inquiry activities in elementary science textbooks are emphasizing gathering and organizing results and evaluation, and hypothesizing and designing an experiment. Inquiry index of the elementary science textbooks is 76. This is significantly higher than 35∼50 of America and U.K. 4. The number of questions per class hour is mostly three, and most of them require the students to explain phenomena in nature or in experiment Second, regarding the development system of elementary science textbooks. 1. The budget for and the period of the development of elementary science textbook should be expanded. 2. For the improvement of elementary science textbooks, more abundant resources and time should be used for the basic study and the field trial of textbooks. 3. The elementary science textbook must include the affective objectives as well as the scientific knowledges and scientific inquiry skills. 4. It is not desirable to assign equal number of pages to the content of physics, chemistry, biology, and earth science. 5. Closer cooperation system is needed among the ministry of education, development research center and the field trial schools.