• Journal of Life Science
• /
• v.28 no.2
• /
• pp.201-206
• /
• 2018

The purpose of this study was to investigate the characteristics of the traditional Korean fermented liquor of Acanthopanax chilsanensis in order to promote its consumption and develop local products. The ethanol contents of the traditional Korean fermented liquors, which contained the root, stem and fruit of Acanthopanax chilsanensis with 10% rice for 13 days at $25^{\circ}C$, were $14.7{\pm}0.7%$, $15.3{\pm}0.9%$, and $15.5{\pm}0.7%$ respectively. The pH of the fermented broth was pH 3.9~pH 4.4 and the total acid was 0.72~0.75%. The total sugar content was abruptly decreased after 24 hr of fermentation, on the 13th day, to 7.1 from 7.5%. The total free amino acids were 7,045.01 mg/l in the test group containing stems. This was higher than in the test group containing the root and fruit of Acanthopanax chilsanensis. The acanthoside-D was 35.42 ppm and 18.91 ppm in the traditional Korean fermented liquor made from 10% root and fruit, but 57.06 ppm in the one made from stem. In the traditional Korean fermented liquor made from root and stem, the L value (lightness), $\underline{a}$ value (redness), and $\underline{b}$ value (yellowness) are all similar and the liquor appeared to be the same color; however, in the fermented liquor made from fruit, L was low and $\underline{a}$ was high, which made the liquor appear more red.

• Journal of Nutrition and Health
• /
• v.10 no.1
• /
• pp.34-37
• /
• 1977

Quantitative analysis of the fatty acids contained in Duck meat was carried out by the Gas Chromatography with Flame ionization Detector, The general components and chemical constants have been performed with A.O.A.C. methods. The results art summarized as follows : 1. General composition of Duck meat come out to be 64.87% moisture, 19.06% protein, 17.05% fat, and 1.02% ash. 2. It was investigated that extraction of lipids were performed by Soxhlet extractor for 12 hours. Amounts of lipids were extracted 79.57% in ethylether, 70.15% in chloroform, and 72.35% in n-hexane. 3. Chemical constants of lipids in Duck meat were obtained as follows : Saponification number 201.5, Acid number 5.01, Iodine number 50.1 and Carbonyl number 4.5 4. It was investigated that the fatty acid component were quantitatively determined by the gas chromatography : Linolenic acid 1.6%, Linoleic acid 19.9%, Oleic acid 45.9%, Stearic acid 3.1% Palmitic acid 17.2% and Myristic acid 0.12% in leg portion. Linolenic acid 1.7% Linoleic acid 17.2%, Oleic acid 51.2%, Stearic acid 3.3%, Palmitic acid 17.1% and Myristic acid 0.17% in breast portion. 5. Cholesterol of blood, breast and leg portion fat in Duck were obtained as follows : Total cholesterol 200 mg%, 260 mg% , and 400 mg% respectively; cholesterol ester 120mg%, 151 mg%, and 240mg% respectively.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.14 no.5
• /
• pp.2349-2359
• /
• 2013

The purpose of this study was to predict the factors which are related to the intention and behaviour for breast self-examination (BSE) of middle aged women using the theory of planned behavior (TPB). A survey using a structured questionnaire was conducted wih 217 middle aged women. BSE behaviour was assessed at 1-month follow-up. The overall fit of the structural model to the date was acceptable(${\chi}^2$=1246.6(p<.001), ${\chi}^2$/df=2.72, CFI=.831, TLI=.817, RMSEA=.089). The BSE behavior rate within one month was 56.2%. The TPB explained 43.9% of the variance in BSE intentions and 10.9% of the variance in BSE behavior. The subjective norm(${\beta}$=.364, p<.001) and the perceived behavioral control(${\beta}$=.553, p<.001) both positively influenced the behavioral intention, and the behavioral intention(${\beta}$=.768, p<.01) positively influenced the behavior. This study shows the model's applicability in explaining BSE behavior of middle aged women, and suggests that health intervention programs should focus on strengthening the intention for the promotion of BSE behavior.

• The Journal of the Korea Contents Association
• /
• v.20 no.8
• /
• pp.65-74
• /
• 2020

The purpose of this study is to analyze relationship between general characteristics of learners and learner-related variables such as learning flow, self-directedness and learner satisfaction, thereby find out effective online teaching methods and provide the necessary basic data for improving learning satisfaction. A total of 473 students of medical school in C region were the subjects of this study and surveyed for research in a self-reporting form. According to the study, proportion of 31 to 40 minutes (38.9%) of learning engaged time was the highest, 65.5% of the learners studied regularly, more than those who studied irregularly(34.5%), and the higher the grade, the higher the percentage of learners who studied regularly. Learning flow averaged 4.03 (±0.86), self-directedness averaged 4.49 (±0.97), and learner satisfaction averaged 4.38 (±1.01). There were significant differences in learning flow, self-directedness and learner satisfaction according to grade, learning engaged time, and learning regularity. the factors affecting learner satisfaction were grade, learning flow, and self-directedness, with 72.5% adjusted R-squared. This study is expected to be used to establish an online learning management system to improve learning satisfaction by identifying variables related to learning satisfaction in the online learning environment of medical students.

• Journal of Chest Surgery
• /
• v.32 no.2
• /
• pp.164-170
• /
• 1999

Background: The diffuse infiltrative lung disease often requires biopsy for its final diagnosis. Unlike the limited exposure that can be achieved through small thoracotomy incisions in open lung biopsy technique, the thoracoscopic approach allows visualization and biopsy of nearly entire surface of the lung without morbidity of large standard thoracotomy. The purpose of this study was to compare the diagnostic efficacy and operative safety of thoracoscopic lung biopsy(TLB) with open lung biopsy(OLB) in the diagnosis of diffuse infiltrative lung disease. Material and Method: From March 1993 to August 1997, 81 patients were referred for diagnostic lung biopsy. 51 of them underwent standard open lung biopsy and the remaining 30 patients underwent thoracoscopic lung biopsy. Result: Mean operative time was 63 minutes for TLB and 79 minutes for OLB (p=0.04). The volume of biopsy specimen was not different between two groups(TLB 7.8 cm3, OLB 6.9 cm3 : p=0.72) and the diagnostic accuracy of each methods was comparable (TLB 100%, OLB 96%). The duration of hospital stay was significantly less in TLB (TLB 13days, OLB 22days : p=0.01). The duration of parenteral narcotics administration was also less for TLB(TLB 2.5days, OLB 5.2days, p=0.05). Meanwhile, the duration of chest tube drainage, the frequency of parenteral narcotic injection were not significantly different between two groups. Complications occurred in 2 among the TLB patients (6.67%) and 4 among the OLB patients (7.84%). There was no operative mortality in both groups. Conclusion: We concluded that TLB is a good alternative procedure to OLB in the diagnosis of diffuse infiltrative lung disease with lower morbidity and comparable diagnostic accuracy.

• Culinary science and hospitality research
• /
• v.21 no.2
• /
• pp.75-84
• /
• 2015

In this study, a Yanggaeng with added loquat fruits puree was developed and studied on quality characteristics. The mixed ratio were 0%, 20%, 40%, 60%, 80%, 100% of loquat fruits puree. Loquat fruits puree have 83.49% of water, 0.36% of crude protein, 0.04% of crude fat, 0.46% of crude ash, $14.3^{\circ}Brix$ of sweetness, 75.10(mg/kg) of polyphenol and 4.01 of pH. The water contents of Yanggaeng were 41.78~53.37%, and showed significant increase (p<0.001). The sugar contents of Yanggaeng were increased from $28.7^{\circ}Brix$ at control group to $36.0^{\circ}Brix$ at 100% mixing group (p<0.001), while pH were decreased from 6.4 at control group to 4.26 to 6.4 at 100% mixing group. In color, the brightness (L-value) gradually decreased from 72.69 at control group to 43.64 at 100% mixing group (p<0.001), the redness (a-value) of control group was the lowest by -1.72 while 100% mixing group was the highest by 8.64 (p<0.001). The yellowness (b-value) of control group was 15.91 while that of 100% mixing group was 21.98 (p<0.001). The DPPH radical scavenging activity of control group was the lowest by 9.24% while that of the group 100% mixing was the highest by 46.17%. Total polyphenol was not detected from control group and 20% mixing groups, and 100% mixing group was The highest by 16.69 mg/100 g (p<0.001). Preference test showed the groups with mixing loquat fruits puree 60% or more were preferred (p<0.001) in color. There were no significant difference from sweet taste but sour taste of 100% mixing group was The highest by 4.85 (p<0.01). For texture and overall preference the most preferred groups were the groups of mixing of 60% and 80% of loquat fruits puree.

• Korean Journal of Food Science and Technology
• /
• v.38 no.3
• /
• pp.414-418
• /
• 2006

The physicochemical characteristics and sensory properties of Jinyangju, a Korean traditional rice wine brewed using unique glutinous rice, were investigated over the following range of fermentation temperatures: 10, 15, 20 and $25^{\circ}C$. The pH value, total acidity, total sugar content, alcohol content and color value of the Jinyangju were determined after the 2-week fermentation, followed by sensory evaluation of the final product. After fermentation for 2 weeks at temperatures of 10, 15, 20 and $25^{\circ}C$, the final pH values were 3.70, 3.73, 3.40 and 3.26, the final total acidities were 1.04, 1.01, 1.39 and 1.72%, the final total sugar contents were 6.43, 6.22, 5.91 and 5.53% and the final alcohol contents were 14.20, 14.17, 14.83 and 15.40%, respectively. The color value of the Jinyangju was not different among the samples. In conclusion, the Jinyangju fermented at $15^{\circ}C$ showed the highest values in such sensory properties as color, flavor and odor, and was judged in the sensory evaluation to be the overall favorite.

• Korean Journal of Food Science and Technology
• /
• v.31 no.4
• /
• pp.938-944
• /
• 1999

Response surface methodology (RSM) was used for monitoring the changes of Hunter's color and organoleptic colors of roasted doraji tea with variations in threonine concentration of soaking solution and roasting condition. In soaking and roasting processes based on the central composite design with variations in threonine concentration of soaking solution, roasting temperature and roasting time, coefficients of determinations $(R^{2})$ of the models were above 0.87 (p<0.05) in Hunter's color parameters and organoleptic color. Hunter's color L value of roasted doragi tea was maximized in 0.09% threonine concentration of soaking solution, $142.37^{\circ}C$ and 21.94 min in roasting condition. Hunter's color a value of roasted doragi tea was maximized in 1.24% threonine concentration of soaking solution, $154.01^{\circ}C$ and 28.59 min in roasting condition, minimized in 1.67% threonine concentration of soaking solution, $137.61^{\circ}C$ and 24.62 min in roasting condition, Hunter's color b value of roasted doragi tea was maximized in 1.10% threonine concentration of soaking solution, $154.72^{\circ}C$ and 27.12 min in roasting condition. The maximum quality of organoleptic color of roasted doragi tea was soaked in 1.25% threonine concentration, and roasted at $141.81^{\circ}C$ for 34.14 min.

• Clinical and Experimental Reproductive Medicine
• /
• v.34 no.3
• /
• pp.173-178
• /
• 2007

Objective: To compare the outcome of twin pregnancies after in-vitro fertilization (IVF) with that of spontaneously conceived twins. Methods: We analyzed 146 twins retrospectively, who had been delivered between January 2000 and July 2005. After reviewing their obstetric medical records, 72 twins conceived with IVF (IVF group) and 51 spontaneously conceived twins (spontaneous group), whose gestational age was over 24 weeks, were recruited for this study. Results: There were no significant statistical differences of demographic features such as maternal age, gestational age and fetal weight between the two groups. However, the risk of pregnancy-induced hypertension (PIH) and gestational diabetes (G-DM) had significantly increased in the group of IVF (OR 2.59; 95% CI 1.01$\sim$6.66). The risk of fetal weight discordancy rate (>20%) and fetal-sex homology rate in IVF group were decreased (OR 0.37; 95% CI 0.14$\sim$0.96, OR 0.45; 95% CI 0.21$\sim$0.99). Conclusion: In this comparative study, maternal PIH and G-DM risks of IVF group are higher than that of spontaneous group. But, fetal-weight discordancy risk and fetal-sex homology rate were lower in IVF group.

• Journal of Life Science
• /
• v.24 no.4
• /
• pp.377-385
• /
• 2014

This study was conducted to investigate the physicochemical characteristics and biological activities of water and 30%, 50%, 70%, 100% ethanol extracts from Artemisia Argyi H. and fermented Artemisia Argyi H. The yield was the highest in the 30% ethanol extract with Argyi H. at 29.74%. Total phenol and flavonoid contents were the highest in 70% ethanol extract with Argyi H. at 72.25 mg/g and 33.34 mg/g, respectively. The antioxidant activities of all extracts were significantly increased in a dose dependent manner. The 70% ethanol extract from Argyi H. show the highest level of DPPH, ABTS radical scavenging activity and bleaching inhibition activity in ${\beta}$-carotene linoleic acid system. Tyrosinase inhibition activity was also higher in the 70% ethanol extract, and the lowest in the 100% ethanol extract with Argyi H. at 50.01% and 11.44% at $500{\mu}g/ml$ concentration, respectively. At $250{\mu}g/ml$ concentration, the xanthin oxidase inhibition activity of water extract was more than 60%, and it was higher than the extracts. These results suggest that the 70% ethanol extract of Artemisia Argyi H. has a high rate of biological activities and can be useful to develop functional food ingredients.