• Journal of Dairy Science and Biotechnology
• /
• v.34 no.4
• /
• pp.239-244
• /
• 2016

The roots of Cichorium intybus L. (chicory) have many nutritional qualities and also have been used for health promotion as traditional medicine. The antimicrobial activity of Cichorium intybus L.'s (chicory) ethanol extract on Bacillus cereus ATCC 10876 were investigated using spot on lawn method in this study. Ethanol extract exhibited antimicrobial activities against Bacillus cereus ATCC 10876 with significance. Also, the results produced the larger zones of inhibition against Bacillus cereus ATCC 10876 tested, with increasing concentration of Cichorium intybus L.'s (chicory) ethanol extracts,. Hence, Cichorium intybus L. (chicory) could be served for keeping the safety of various dairy products as natural antimicrobial agents.

• Journal of Families and Better Life
• /
• v.33 no.4
• /
• pp.147-160
• /
• 2015

This study analyzed the differences in adjustment and family environments of adolescents from three different family structures, using the KCYPS panel 4th wave data from first graders in middle schools. The participants of the study consisted of 1,715 adolescents in two-parent families, 79 adolescents in single-father families, and 113 adolescents in single-mother families. The data were analyzed by means of descriptive statistics and ANCOVAs. The findings of this study indicated that adolescents in two-parent families showed a lower level of physical symptoms than those in single-mother families and a lower level of participation in classwork than those in single-father families whereas adolescents in single-father families were more likely to be involved in delinquency than those from the other two family structures. In addition, significant differences were found in family environments including parents' physical health and life satisfaction, family economic status, parenting behaviors, and parents' absence at home after school. Parents in single-mother and single-father families were less healthy physically, showed lower levels of life satisfaction, reported less income, and spent less money for their children, compared to those in two-parent families. With regard to parenting behaviors, single fathers tended to be less warm toward and neglected their children more than single mothers and parents in two-parent families. Adolescents in single-father families were most likely to be left alone at home after school, followed by those in single-mother and two-parent families. The results suggested that specific attention needs to be paid to adolescents from single-father families in order to support their adjustment.

• Journal of Dairy Science and Biotechnology
• /
• v.36 no.1
• /
• pp.32-38
• /
• 2018

The objective of this research was to determine the grain oil most suitable for the production of omega-3 fatty acids (FAs) in China, in order to supply dietary omega-3 FAs. This study focused on the nutritional significance of omega-3 FAs and the wide search of sources of dietary omega-3 FA from oil grains produced in China. Five oil grains produced in the Yanbian region, namely sesame, flax, peanut, soybean, and corn, were selected and analyzed for their fat content and FA composition. Results showed that the lipid content in sesame, flax, and peanut, which was more than 30%, was higher than that in soybean and corn. The polyunsaturated FA content was found to be directly proportional to omega-3 FA content. Flax showed a considerably higher omega-3 FA content (53.43%) than other samples, suggesting its potential as a source of dietary omega-3 FA. The optimal daily intake of flax for males and females was determined to be 2.99 g (over one table spoon) and 2.06 g (nearly one table spoon), respectively. Flax showed the lowest ratio of omega-6 and omega-3 FA (0.32%), which can help reduce this ratio in the human body; the intake of equal amounts of flax and corn could achieve an optimum ratio of 1:1. These results can prove to be valuable in the preparation of various functional dairy foods in the future.

• Journal of Dairy Science and Biotechnology
• /
• v.36 no.1
• /
• pp.1-13
• /
• 2018

Kefir exhibits antimicrobial activity in vitro against gram-positive and gram negative bacteria, as well as some fungi. The ability of LAB to inhibit the growth of closely related bacteria is well known. This inhibition of pathogenic and spoilage microbes may be due to the production of organic acids, hydrogen peroxide, acetaldehyde, diacetyl, carbon dioxide, or bacteriocins. Lactobacilli are the major contributors to acid production and, hence, a determining factor in the flavor development in kefir. Lactic acid, proteolytic activity, and acetaldehyde are the essential flavor compounds in kefir. Both acid and bacteriocins contribute to the antimicrobial activity of kefir and kefir grains. Kefir is rich in proteins, calcium, vitamin $B_{12}$, niacin, and folic acid. Many studies have investigated the benefits of consuming kefir and have shown that it is a natural probiotic, which when consumed regularly, can help relieve intestinal disorders, promote bowel movement, reduce flatulence, and improve the overall health of the digestive system. Tibetan kefir, which is different from traditional kefir, is produced in China. It has been reported to exhibit antimicrobial activity that is nearly identical to that of traditional kefir. Kefir production is considered a rapidly growing food industry in China.

• Journal of Digital Convergence
• /
• v.12 no.11
• /
• pp.339-348
• /
• 2014

As future society will be strengthened by interdisciplinary study and education, we have to prepare general education curriculum which provide critical thinking, problem-solving, creativity, communication abilities. Those curriculum will help to nurture students who lead our future society. Now we prepare new curriculum to train students to understand the computer science and software needed to create their own, and we could cultivate students having ability to create interdisciplinary study by using programming skill. So we ran a computer programming class during a semester for the freshmen's capacity building on computing-thinking ability using the Python language. We analyzed the effectiveness and showed that student's curiosity and motivation to want to learn computer programming occurred, their various skills for interdisciplinary ability were improved.

• Food Science of Animal Resources
• /
• v.36 no.2
• /
• pp.194-197
• /
• 2016

The alkaline phosphatase (ALP) assay is a rapid and convenient method for verifying milk pasteurization. Since colorimetric ALP assays rely on subjective visual assessments, their results are especially unreliable near the detection limits. In this study, we attempted to establish quantitative criteria for residual ALP in milk by using a more objective method based on spectrophotometric measurements. Raw milk was heat-treated for 0, 10, 20, 30, and 40 min and then subjected to ALP assays. The quantitative criteria for residual ALP in the milk was determined as 2 μg phenol/mL of milk, which is just above the ALP value of milk samples heat-treated for 30 min. These newly proposed methodology and criteria could facilitate the microbiological quality control of milk.

• Food Science of Animal Resources
• /
• v.36 no.6
• /
• pp.787-790
• /
• 2016

Kefir is a unique fermented dairy product produced by a mixture of lactic acid bacteria, acetic acid bacteria, and yeast. Here, we compared the antimicrobial spectra of four types of kefirs (A, L, M, and S) fermented for 24, 36, 48, or 72 h against eight food-borne pathogens. Bacillus cereus, Staphylococcus aureus, Listeria monocytogenes, Enterococcus faecalis, Escherichia coli, Salmonella Enteritidis, Pseudomonas aeruginosa, and Cronobacter sakazakii were used as test strains, and antibacterial activity was investigated by the spot on lawn method. The spectra, potencies, and onsets of activity varied according to the type of kefir and the fermentation time. The broadest and strongest antimicrobial spectrum was obtained after at least 36-48 h of fermentation for all kefirs, although the traditional fermentation method of kefir is for 18-24 h at $25^{\circ}C$. For kefir A, B. cereus, E. coli, S. Enteritidis, P. aeruginosa, and C. sakazakii were inhibited, while B. cereus, S. aureus, E. coli, S. Enteritidis, P. aeruginosa, and C. sakazakii were inhibited to different extents by kefirs L, M, and S. Remarkably, S. aureus, S. Enteritidis, and C. sakazakii were only inhibited by kefirs L, M, and S, and L. monocytogenes by kefir M after fermentation for specific times, suggesting that the antimicrobial activity is attributable not only to a low pH but also to antimicrobial substances secreted during the fermentation.

• Journal of Digital Convergence
• /
• v.18 no.9
• /
• pp.199-210
• /
• 2020

The objective of this study was to identify generational difference of work value and job engagement. Total 256 nurses participated in Korea. Analysis of variance(ANOVA) was conducted to investigate the generational differences of work value and job engagement and factors of work values influencing to job engagement was identified by multiple regression analysis. Nurses considered financial benefits, job security, and work environment as the most important thing and autonomy, possibilities of promotion, and contribution to society were considered less important in their work life. Y and Z-generation nurses respected more to interests at work and time availability for private life than X-generation in work life.

• Journal of the Korean Dietetic Association
• /
• v.24 no.2
• /
• pp.117-140
• /
• 2018

The number of patients is increasing and their mean age is also increasing. Proper dietary adjustments are necessary to prevent protein-calorie malnutrition or complications but it is difficult for dialysis patients to adapt to diet therapy due to stress or anorexia. Education does not consider the individual characteristics, knowledge, dietary inhabit education demands, and initial education. The purpose of this study was to identify dialysis patient's nutrition knowledge and, dietary practice and compare those with nutrition education or counseling demands for providing basic data of desirable nutrition management. The data were collected by a survey consisting of the general characteristics, disease related characteristics, nutrition education and counsel characteristics, level of nutrition knowledge, diet therapy, and nutrition education and counsel demands from the 28th March to 22th July 2017. The total number of subjects were 33 patients among dialysis patients at two tertiary medical institutions and an artificial kidney room at a private hospital in Incheon Gyeonggi. The data collected were analyzed statistically using the SPSS program 23.0, followed by further analyses using frequency analysis, one-way ANOVA, cross analysis, and correlation analysis. The results of the dialysis patients showed that younger (P<0.05), female (P<0.05), abnormal high school diploma (P<0.001) groups had high nutrition scores. In addition, dietary practice and nutrition education and counsel demands showed a positive correlation (P<0.05, P<0.01). In particular, females were higher than males in nutrition knowledge, dietary practice, nutrition education, and counseling demand scores.

• Journal of the Korea Society of Computer and Information
• /
• v.19 no.2
• /
• pp.243-251
• /
• 2014

Computer-related OA lectures at the university mainly deal with the creation of word processing documents and presentations and spreadsheet documents. To use most of the course evaluation at the university will be evaluated by the subjective judgment about the satisfaction and the skills assessment of students. In this paper, we take a lecture given at the university of OA before and after the university students to self-diagnosis is to propose an survey. In addition, we would like to analyze more objectively the degree of use computer-related OA and the degree of improvement of computer skills by the proposed objective survey evaluate to students compare with students have acquired scores during the semester.