식품 중의 엽산함량 측정을 위한 Trienzyme 처리 방법

연미영,현태선,박수봉,박인영,신영주 충북대학교 교육 ·생활연구소 생활과학연구센터 2002 생활과학연구논총 Vol.5 No.-

Food folate assay after trienzyme treatment (α-amylase, protease, folate conjugase) has been reported to be more effective than the assay after conjugase treatment alone. We evaluated the conditions of pH and incubation time for the treatment with trienzyme, and compared folate contents in selected Korean foods by applying two extraction methods (trienzyme treatment vs. conjugase treatment alone). Folate contents were measured by a microbiological method using L. casei after one of the extraction procedures. Optimal pHs for trienzyme treatment of black bean were found to be 5.0 and then 7.0, while those for korean cabbage was 7.0. Therefore, a pH of 7.0 was selected for the buffer during trienzyme treatment. Since samples treated with low concentrations of α-amylase and protease for 16 hours yielded lower values than those with high concentrations of enzymes for 4 hours, the incubation with high concentrations for short period was chosen. The recovery of folate after trienzyme treatment was 96.4%, and the coefficient of variation between days in the microbiological assay was 9.0%. Folate values after trienzyme treatment were higher in most foods except Korean cabbage, beef and milk than those after conjugase treatment alone. In addition, folate values obtained in this study were generally higher than the database published in 2000. Therefore it is necessary to determine folate in Korean foods using the trienzyme treatment we suggested here as well as conjugase treatment alone in order to estimate folate intake of Koreans more accurately.

동결온도가 해동 쇠고기의 품질에 미치는 영향

남주현,송형익,김미숙,문윤희,정인철 한국식품영양학회 1998 韓國食品營養學會誌 Vol.11 No.5

동결온도가 해동우육의 품질에 미치는 영향을 검토하였다. 해동드립감량은 -3℃ 동결이 30일째에 3.4%, -20℃ 동결이 60일째에 1.8%로 높았으며, -3℃가 -20℃보다 드립량이 많았다. 가열감량은 water bath와 pan 가열 모두 저장초기보다 동결저장중에 현저하게 높았으나, 동결온도에 의한 차이는 없었다. 염용성 단백질의 추출성은 동결기간이 경과함에 따라 감소하였고, -20℃에서 동결한 것이 -3℃에서 동결한 것보다 추출성이 높았다. 수용성 단백질의 추출은 -3℃의 경우 동결기간에 따라 현저한 변화가 없었으나, -20℃에서 동결한 것은 동결기간에 따라 증가하는 경향을 보였다. 명도(L)는 동결초기가 높았고 적색도(a)는 동결기간에 따른 변화가 없었으며, 황색도(b)는 동결초기보다 동결중에 더 높았다. Myoglobin의 변성율은 -3℃의 경우 45일째, -20℃의 경우 15일째 각각 94.4%와 94.0%로 가장 높았다. 전단력가는 동결초기보다 저장기간이 경과함에 따라 높아졌으며, 근원섬유의 소편화도는 동결저장중 현저한 변화가 없었다. pH는 -3℃와 -20℃ 모두 30일째까지 높아지다가 그 이후 낮아지는 경향을 나타내었다. This study was carried out to investigate the effects of freezing temperature on quality of thawed beef loin. In case of thaw drip loss, the freezing of -3℃ and -20℃ were higest by 3.4% to 30 days and by 1.8% to 60 days, respectively. And the thaw drip loss of -3℃ freezing was more than -20℃ freezing. The cooking loss of water bath and pan boiling were increased significantly during freezing than the beginning of freezing, but were not different -3℃ and -20℃. The salt soluble protein extractability was decreased during freezing, the -20℃ freezing was higher than -3℃ freezing. The water soluble protein extractability of -3℃ freezing was not significant different during freezing storage, that freezed at -20℃ was increased during freezing. The "L" value of the beginning of freezing was higher than during freezing, the "a" value was not different during freezing, and the "b" value during freezing was higher than the beginning of feezing. The myoglobin denatured percentaged of the -3℃ and -20℃ freezing were highest by 94.4% to 45 days and by 94.0% to 15 days, respectively. The shear force value during freezing was higher than the beginning of freezing, the myofibrillar fragmentation index was not significant different during freezing. The pH was increased to freezing 30 days, after that was decreased.

행동억제 기질과 사회불안 및 긍정적 정서의 관계에 대한 연구 고찰

이혜미,송현주 서울여자대학교 2010 심리치료: 다학제적 접근 Vol.10 No.2

본 연구는 청소년기에 일반적으로 가장 흔하게 발생하는 불안장애의 하나인 사회불안의 특성에 대하여 알아보고, 사회불안의 발생요인 및 사회불안을 유지하게 하는 심리적 기제로 알려진 행동억제 기질과 사회불안의 관계에 대한 선행 연구들을 살펴보고자 하였다. 최근 들어 행동억제 기질과 사회불안과의 관계에 영향을 미치는 여러 변인들의 매개효과, 중재효과에 대한 연구가 많이 진행되고 있는데, 이에 대한 연구들에 대해서도 전반적으로 고찰해보고자 한다. 또한 대부분의 심리학이 정신 병리와 관련된 부정적 정서에만 초점이 되었던 과거의 시각에서 벗어나 긍정적 정서에까지 넓혀진 시각에 맞춰 사회불안과 긍정적 정서와의 관련성에 대해서도 살펴볼 것이다. 그렇게 함으로써 청소년기에 발생해 장기적 손상을 지속적으로 초래하는 사회불안 발생 및 치료적 중재, 조기 예방적 접근을 위한 기초 자료로 활용할 수 있는 방안들에 대해 탐색해 보고자 한다. This study wants to find out characteristics of a social anxiety which is a type of anxiety disorders that adolescents generally often have. In addition, it was intended to examine previous studies on causes of the social anxiety and its correlation with an behavioral inhibition, known as a psychological mechanism for maintaining the social anxiety. Recently, there have been many researches on mediated effects of variables which have influence on correlations between behavioral inhibition and the social anxiety, so it was considered to study the researches. While psychology focused on the negative emotions of psychological disorders in the past, but to get out of the narrow point of view, the correlations between the social anxiety and positive emotions would be considered here. The purpose of this study is to find out ways to build basic data for causes of the social anxiety which continuously imposes a long-term trauma on adolescents, and psychological intervention and early prevention of it.

하천 수변공간 개발에 관한 연구

김가현,김종주,김미룡 慶南專門大學 1998 論文集 Vol.26 No.1

콜리플라워를 이용한 피클제조 최적화

정현아,윤지영,황재선,주나미 한국식생활문화학회 2004 韓國食生活文化學會誌 Vol.19 No.2

The purpose of this study was to determine the organoleptic characterisitcs of cauliflower pickles made in various compounding ratio according to central conposite design for optimum organoleptic characteristics of the cauliflower pickles. The optimum mixing condition of cauliflower pickles were optimized, using central composite design with 3 variables and 3 levels, by response surface methodology. The various kinds of cauliflower pickle were made in various compounding ratio of vinegar, salt and sucrose - critical ingredients of pickle recipe - and were presented to reliable panels, who graded the subjects in 7 degrees for 4 items : color, lavor, hardness and overall quality. The optimum mixing conditions of cauliflower pickle were 603.50g of vinegar, 80.13g of salt and 251.079 of sucrose in the maximum point of overall quality.

홍국 풀을 이용한 김치 제조 및 품질 특성

김현정,박정현,황보미향,이효주,이인선 한국조리과학회 2003 한국식품조리과학회지 Vol.19 No.6

Kimchi was prepared with the addition of 2.5% and 5.0% Monascus purpureus koji(MPK) paste (20%) and were fermented at 20C for 18 days. The quality and sensory characteristics of the kimchi were evaluated by analyzing the pH, acidity, number of viable cells, the concentration of reducing sugar, and sensory properties during fermentation. The pH and titratable acidity of the kimchi prepared with MPK(MPK kimchi) were higher and lower, respectively, than those of the control kimchi. The MPK kimchi showed high 'L' and 'b' values during storage, but the 'a' values were low. The contents of the reducing sugar of the MPK kimchi tended to increase during fermentation, particularly after six days. The number of total microbial cells, lactic acid bacteria and yeast in the MPK kimchi were lower than those of the control kimchi until 3 days of fermentation. However, the number of these bacteria in the MPK kimchi and the control kimchi after six days of fermentation was similar. The sensory score of the kimchi with 2.5% and 5.0% added MPK paste were significantly higher than the control groups in terms of the sweetness and overall acceptability.

고등학생의 인터넷 사용정도와 학교적응, 친구관계에 대한 연구

이현주,김미연,이희재,권소영,김민정,김민주,방은혜,이경희,김수지,이자형 이화여자대학교 간호과학대학 2004 이화간호학회지 Vol.- No.38

Today, almost all families are quipped with computers. At the same time, we can find lots of side-effects because of computers. If young students, who tend to be unable to control their impulses once they are immersed in internet, the problem will be more serious. It could be happened that the young students can't distinguish the real from the image. Therefore, it is important to grasp the actual condition of juvenile Internet addicts and their practical life, and to come up with basic materials necessary for working out countermeasures. This study surveyed 339 high school students from three high schools in the area of Seoul. Data collection were collected from 22nd of December, 2003 to 27th of December 2003. The collected data were analyzed by SPSS program using T-test, ANAVA and Pearson correlation coefficient. The results were as follows: First, of the 333 respondents 9.61% of them were high-risk internet using group, 15.02% of them were potential-risk internet using group. 25% of then were identified as addicted group. Second, the more addicted the subjects are, the lower their level of school adjustment becomes. For the addicted group, it is difficult to adjust their school and to have a good relationship with friend. Third, the more addicted the subjects are, the lower their level of friendship becomes. The subordinate areas of friendship have same results as the level of Internet addiction and the extent of friendship. If students are addicted to Internet, it is difficult to find friends who can give them encouragement in practical life. Firth, there was a negative relationship between Internet addiction and school adjustment, and, there was a negative relationship between Internet addiction and friendship. Through this study we have seized the relationship between Internet addiction and school adjustment and friendship. As a result, the more addicted, the more difficult to adjust to school. And for the students who were addicted, it is difficult to make a friend.

농촌지역 노인들의 우울증상에 관련된 요인들의 특성

송미숙,전기홍,송현종,김정은,박승구,신상건,이동훈,정성현,최연주,최완철,최민규,황재철,홍지만 아주대학교 1997 아주의학 Vol.2 No.2

This study was performed to identify risk factors for depression among the elderly in a rural area. A survey was done for the elderly living in Gosam-myenn, Ansung-kun during the period of July 28, 1997 and July 30, 1997. Demographic and sodoeconornic characteristics, and functional and health Status were assessed using a structured questionnaire, and the level of depression was measured by GDS score. The data obtained were analyzed by frequencies, percentage, t-test, ANOVA, and multiple regression, and the results were as follows: 1. The total sample consisted of 133 elderly. Of them, 47 elderly (35.4%) showed significant depressive Symptoms. 2. The GDS score was the highest for the group over 85 years of age (p < 0.05). Those living alone or widowed showed lower GDS score than those living with someone or married (p < 0.05). 3. The GDS score was the highest in the absolutely dependent group, followed by the partially dependent group, and the independent group (p < 0.01). The elderly who perceived their health Status as excellent showed the lowest GDS score. In contrast, those who had more than five chronic diseases showed the highest GDS score. 4. The elderly receiving financial and emotional support from their family or friends showed lower GDS score compared to those without any support. 5. The economically dependent group showed higher GDS score than that of independent group. 6. The elderly who involved in leisure activities showed lower GDS score than those without any involvement. 7. In terms of risk factors for depression, we found that perceived health Status, subjective economic Status, leisure activities, living arrangement and financial support were inversely associated with GDS score, whereas labor support was positively associated with GDS score. Based upon the above findings, this study suggests that these risk factors for depression in the elderly should be taken into consideration for a comprehensive mental health program for the elderly living in the rural area.

연세대학교 치과대학 치과병원 종사자의 두발중 수은함량에 대한 연구

김순주,남미현 大韓小兒齒科學會 1991 大韓小兒齒科學會誌 Vol.18 No.1

This study was carrid out for the purpose evaluating the mercury level in the head hair of dental workers in Dental Hospital of Yonsei University. Collected samples of head hair from 33 subjects -18 dentists,7 dental auxiliaries,8 healthy adults were analyzed by cold vapor technique of atomic absorption spectrophotometry to determine the mean mercury level of the head hair. The results obtained were as follows. 1.The mean mercury level in the head hair of dental workers 1.050 ppm and the mean mercury level in the head hair of healthy adults was 0.915 ppm. There is no statistical significance between the two groups(P>0.05) 2.The mean mercury level of dental workers handing the amalgam was 1.127ppm and the mean mercury level of the other dental workers was 0.933ppm. There is no statistical significance between the two groups(P>0.05) 3.The mean mercury level of female in the total samples was 0.766ppm and the mean mercury level of male was 1.194ppm. The mean mercury level of female in the head hair the male was higher than the mean mercury level of female. (p<0.05)

여대생의 결혼관에 관한 연구

강신미,김욱련,김이화,김현주,백은주 효성여자대학교 가정대학 학도호국단 1985 家政大論集 Vol.4 No.-

In these days, Korea has undergone various changes in every social aspect throughthe process of modernization. Especially in instituional and actual aspects, the family.and marriage have been changed greatly by the rapid urbanization and iudustrializatton,.and these changes have been investigated scientifically. This paper presents marital consciousness and actual behavior of 300 woman collegestudents in Daegu, and was surveyed comparing various parts-the humanities, natural·science and the arts. As for the basic attitude of marriage, they were positive in the need of marriage,,defined marriage as the second starting point of life. Also they put the aim of marriage,on mental value. As for the dating and purity before marriage, 84 percent of respondents assented tothe dating before marriage. And they thought it proper that the duration of datingwas one year to two years. The age of the first dating and the standard of sex moralstore significant. The part of the arts tended to be open, and the part of natural sciencewere conservative. As for the standard of spouse's choice, 84 percent of respondents wanted to have theright of priority they could choose their spouses for themselves. And they thought it·proper that the age of marriage was 25-year-old to 26-year-old, and the gap of maritalage was one year to three years. Ideal spouse's characteristic, home surroundings, and marital harmony were significant. Among various marital conditions, personality tended to to emphasized, and theatmosphere of family and masculine appearance were taken serious. As for a. spouses's job, professor or research occupation was popular. Compared withthe part of the arts, the part of the humanities and natural science were positive inpredicting marital harmony. Among various marital conditions, an only son, the eldest son, and an offspring ofa concubine tended to be evaded. The type of an ideal spouse was companionship.