남녀 대학생들의 방사선 인식 정도에 관한 비교 연구

장재선,황성희,Jang, Jae-Seon,Hwang, Seong-Hee 한국식품영양학회 2015 韓國食品營養學會誌 Vol.28 No.3

This study was conducted to provide fundamental data on the awareness of radiation, specifically the differences between general awareness, psychological state and harmful effects. Data was collected from 334 University students in the Chungbuk region through a self-administered questionnaire. According to the results of the reliability and factor analysis, the awareness of radiation was 2.80, with a Cronbach alpha coefficient of 0.815 and KMO of 0.798. Factor analysis extracted three components of the awareness of radiation, which we named general awareness (factor 1), psychological state (factor 2), and harmful effect (factor 3). There were significant differences in the general awareness of natural radiation and radiation-containing foods (p<0.05), whereas no significant differences were found in the general awareness of radiation food supply (p>0.05). Also, the psychological state showed a significant difference in exposure inspection, future exposure, and radiation-containing food (p<0.05), whereas no significant differences were found in the refusal of radiation inspection (p>0.05). The harmful effects showed a significant difference in the rejection of radiation (p<0.05), but no significant differences in the cancer and genetic effects, diseases and physical harmfulness (p>0.05). A significant positive result (p<0.05) was found for the psychological state according to the harmful effects of radiation. Based on this study, detailed and continuous education must be accomplished by increasing the awareness of radiation and the acceptance level, conveying a proper understanding of radiation and assisting subjects with receiving the information they desire through various educational mediums.

한국 녹차 화분의 화학적 조성과 기능성 연구

장재선,Jang, Jae-Seon 한국식품영양학회 2018 韓國食品營養學會誌 Vol.31 No.1

In this study, we investigated the nutritional composition including proximate, amino acid, vitamin, minerals, and the antioxidant activity of green tea (Camellia sinensis) pollen grains collected by Apis mellifera bees, for use as a health food. The crude protein and fat content was estimated at 26.14% and 3.49%, respectively. Eighteen amino acids were identified in green tea pollen, including 8 essential amino acids and 10 non-essential amino acids. The predominant amino acids were glutamic acid, proline and aspartic acid accounting for about 33.3% of total free amino acids. The concentration of vitamin C was the highest value of 35.7%, followed by $B_3$ and $B_2$ among the detected vitamins. The predominant minerals were potassium (790.32 mg/100g), followed by phosphorus (707.52 mg/100g) and sulfur (302.67 mg/100g), whereas copper, zinc and sodium were detected as minor elements. The antioxidant activity and phenolic content accounted for 33.8% at $500{\mu}g/mL$ extract and $2.55 {\mu}g/mg$, respectively.

인천연안 Vibrio parahaemolyticus의 분포 및 유산과 과산화수소 처리에 의한 항균효과

장재선,조우균,이혜정,이제만,김혜영,김용희,Jang, Jae-Seon,Cho, Woo-Kyoun,Lee, Hye-Jeong,Lee, Jea-Mann,Kim, Hye-Young,Kim, Yong-Hee 대한환경위생공학회 2006 대한환경위생공학회지 Vol.21 No.4

This study was carried out to investigate the distribution of Vibrio parahaemolyticus in the Incheon adjacent sea, and antimicrobial effect on growth of Vibrio parahaemolyticus in lactic acid and hydrogen peroxide and combination of lactic acid and hydrogen peroxide. The detected strains were compared geographical, months and sample types. The distribution of Vibrio parahaemolyticus was high at Ganghwa county with 66.1%(336 samples), on 7-9 months with 72.4%(386 samples) and from tireland with 75.0%(90 samples), respectively. The minimun inhibitory concentration (MIC) of lactic acid in Vibrio parahaemolyticus were 1250 ppm at pH 6.5 and 7.0, 625 ppm at pH 6.0. respectively. The minimun inhibitory concentration (MIC) of hydrogen peroxide in Vibrio parahaemolyticus were 25 ppm at pH 6.5 and 7.0, 12.5 ppm at pH 6.0, respectively. MICs of combined treatment of lactic acid and hydrogen peroxide in Vibrio parahaemolyticus were 625 ppm of lactic acid with 12.5 ppm of hydrogen peroxide. The correlations between MICs of lactic acid and hydrogen peroxide in Vibrio parahaemolyticus were obtained through the coefficient of determination($R^2$). $R^2$ value were 1.0000. The antimicrobial effect of lactic acid and hydrogen peroxide in Vibrio parahaemolyticus could be confirmed from the result of this experiment.

여러 가지 탄소원이 인지질 생합성에 미치는 영향

장재선 京畿專門大學 1998 京畿專門大學 論文集 Vol.- No.26

The changes in contents of phospholipids were analyzed in Chlorella treated with carbon sources (glucose, sucrose, raffinose) during the cultures. The content changes of PC were decreased average 99% in glucose treatment, but increased average 200% in sucrose treatment, 182% in raffinose treatment compared with the control. The PG content were markedly increased average 302%, 138% and 102% in glucose, sucrose and raffinose treatment. The content changes of PG were increased average 222%, 244% and 129% in glucose, sucrose and raffinose treatment. The average increase was 2-5 times. The PI content were increased average 246% in glucose treatment, 289% in sucrose treatment, 304% in raffinose treatment compared with the control. The average increase was 5-6 times.

Chitosan을 이용한 염료 탈색에 관한 연구

장재선 京畿專門大學 1999 京畿專門大學 論文集 Vol.- No.27

Dyes are released into the environment from industrial wastewater. They are considered to be a pollution problem because of the wide spread into environment with a variety of colors. The decolorization of dyes from synthetic water using chitosan were studied varying temperature, time, chitosan amount and viscosity. The results on decolorization of several dyes were as followed : The decolorization rate of dyes according to varying time were 40% and 23%, 49% and 24%, 57% and 25%, 60% and 28% on the 5, 10, 30, 60 minutes in eosin Y and basic fuchsin, respectively. The decolorization rate of dyes according to varying temperature were 40% and 28%, 57% and 28%, 36% and 10% on the 30℃, 60℃, 90℃ in eosin Y and basic fuchsin, respectively. The decolorization rate of eosin Y according to varying chitosan amount remarkably increased. Otherwise, in basic fuchsin dyes that the results were found to be quite similarly. The decolorization rate of dyes according to varying viscosity were 69% and 30%, 57% and 28%, 59% and 28% on the 9.0cps, 9.5cps, 10.0cps in eosin Y and basic fuchsin, respectively.

연안 해역에서 분리한 Vibrio parahaemolyticus에 대한 유기산의 증식억제 효과

장재선,김용희,윤병준,Jang, Jae-Seon,Kim, Yong-Hee,Yoon, Byoung-Jun 한국환경보건학회 2009 한국환경보건학회지 Vol.35 No.3

This study was carried out to investigate the distribution of V. parahaemolyticus in Incheon adjacent sea, and anti-microbial effect on growth of V. parahaemolyticus in organic acid. The detected strains were compared for geography, months and sample types. V. parahaemolyticus was detected form 28.5 percent of 287 samples collected from Incheon area, and 34.7 percent of 91 samples collected in the months of July through September, and 24.7 percent of 279 shellfish samples respectively. The minimun inhibitory concentration(MIC) of organic acid in V. parahaemolyticus were 1,250ppm at propionic acid, citric acid and acetic acid, 2,500ppm at vanillic acid, respectively. MICs of combined treatment of acetic acid and vanillic acid, citric acid and vanillic acid, propionic acid and vanillic acid were 1,250 ppm. MICs of combined treatment of citric acid and acetic acid, propionic acid and acetic acid, propionic acid and citric acid was 12.5ppm. The antimicrobial effect of organic acid in V. parahaemolyticus was confirmed from the result of this experiment.

추출조건이 chitosan의 제조에 미치는 영향

장재선 京畿專門大學 2001 京畿專門大學 論文集 Vol.- No.29

Chitosan have been usually prepared by deacetylation of chitin derived from Crustacea species such as lobster and crab with cone. NaOH. However, such treatment not only deacetylation N-acetyl glucosamine residues but also causes degradation of glycosidic bonds of chitins, decreasing their molecular weight. Some fungi contains as components of their cell walls. If chitosans prepared from these fungi have unique properties compared with those derived from Crustacea species, they would be valuable for industrial use. Chitosan was isolated from Aspergillus oryzae. This can be the potential resource for the production of chitosan. The composition of A. oryzae has been investigated. The chemical analysis of A. oryzae was consists chiefly of carbohydrate(42.8%) and protein(42.5%), with smaller amounts of moisture(6.4%), ash(4.9%) and crude fat(3.4%). In the case of isolating of chitosan from A. oryzae, hot alkali extraction(40% NaOH, 120℃, Ihr.) was carried out to remove alkali soluble glucan, protein and lipid. This was followed by acetic acid extraction(0.5 N acetic acid, 95℃, 12hr.) to extract the chitosan. To isolated chitosan from A. oryzae and the affect of the yield of chitosan-glucan complex and glucosamine, the alkaline concentration, the temperature, and the extraction time were examined by ANOVA test. At the 5% significant level, the yield of chitosan-glucan complex was only affected by the extraction time while the glucosamine content was affected by the temperature. The yield of chitosan and chitosan-glucan complex were 5.89%(dry basis) and 20.73%(dry basis) of homogenized A. oryzae, respectively.

배양조건에 따른 담자조류의 지방산 조성 변화

장재선 京畿專門大學 1997 京畿專門大學 論文集 Vol.- No.25

여과 케이크의 압축성에 관한 연구

장재선 京畿專門大學 1996 京畿專門大學 論文集 Vol.- No.24

순환 유동상 생물막 반응기를 이용한 아질산 축적과 FISH 에 의한 질산화 미생물 구조 분석

장재선,김동진 대한환경공학회 2002 대한환경공학회 학술발표논문집 Vol.2002 No.06