상황버섯(Phellinus baumii) 에탄올 추출물의 항산화능과 β-glucan 함량

배현경,황인욱,홍희도,정신교 한국식품저장유통학회 2015 한국식품저장유통학회지 Vol.22 No.5

Phellinus baumii has been used in traditional oriental medicine for the treatment of various cancer types, such as lung cancer, ovarian cancer and malignant melanoma. It has strong anti-cancer, anti-inflammatory and antioxidant activities due to its polysaccharides including glucan, schizophyllan, heteroglycan and lentinan, as well as its polyphenolics such as protocatechuic acid, caffeic acid, coumaric acid. β-Glucan and polyphenolics may be the most important activ ecompounds in P. baumii. Therefore, researchers have focused on these two compounds to improve their contents in extracts. In this study, P. baumii was extracted with hot-water and ethanol at different pH conditions, and their β-glucan contents, antioxidant activity and antioxidant contents were determined. Extraction yield was highest for the 60% ethanol extract at pH 4. The β-glucan contents of the hot-water extract at pH 7 was higher than those of the ethanol extracts. The antioxidant contents and antioxidant activities of the ethanol extracts were higher than those of the hot-water extracts. Extraction with 60% ethanol at pH 7 was appropriate with respect to the antioxidant capacities.

시비량과 재식밀도 변화에 따른 ‘눈큰흑찰’의 품질 및 수량변화

배현경,오성환,서종호,황정동,김상열,오명규 한국작물학회 2017 한국작물학회지 Vol.62 No.2

‘Nunkeunheugchal’ is a waxy black rice variety that has a large embryo. The quality of black rice depends on the anthocyanin content of the rice seed coat, which is mainly determined by cultivation environment. Factors that affect the anthocyanin content include nitrogen level, planting density, transplanting date and harvesting date. This study was carried out to investigate the optimum black rice cultivation conditions by examining the effects of different nitrogen levels and planting densities. An initial study was conducted to determine the optimum nitrogen level in which four levels of nitrogen were applied to the field (0, 4, 8 and 12 kg/10a). As the nitrogen contents were increased up to 8 kg/10a, there was a concomitant increase in rice yields. However, nitrogen levels greater than 8 kg/10a, the yield was maintained at the same level. Correlation analysis indicated that the optimum nitrogen level for maximum yield was 9.6 kg/10a. In addition, anthocyanin levels showed a trend similar to that of yield, with correlation analysis indicating that the optimum nitrogen level for maximum anthocyanin content is 10.6 kg/10a.On the basis of these results, a second study was conducted to determine the optimum combination of planting density and nitrogen level. The planting densities investigated were 30 × 12, 30 × 14, 30 × 16cm and nitrogen levels were 7, 9 and 12 kg/10a. A high planting density (30 × 12cm) was shown to produce higher numbers of tillers and yield. As calculated in the first study, a nitrogen level of 9 kg/10a shown to produce the highest anthocyanin content and yield. Collectively, the results of this study indicate that a planting density of 30 × 12 cm and a nitrogen level of 9 kg/10a is the optimal combination in terms of maximizing both rice yield and anthocyanin content.

Cardiovascular Screening in Asymptomatic Adolescents with Metabolic Syndrome

배현경,최한설,손세정,신해정,남재환,홍영미 한국심초음파학회 2015 Journal of Cardiovascular Imaging (J Cardiovasc Im Vol.23 No.1

Background: In recent days, the prevalence of childhood metabolic syndrome (MS) has increased substantially due to theincreasing rate of childhood obesity on a global scale. The aims of this study were to detect the important parameters and providethe screening system to prevent cardiovascular disease in adolescents with MS. Methods: Ninety one male adolescents were divided into two groups based on the presence or absence of MS. Anthropometricmeasurement and laboratory study were studied. Intimal medial thickness and pulse wave velocity were estimated. Leftventricular mass index (LVMI), ejection fraction, myocardial velocity, strain and strain rate were measured by tissue Dopplerimaging and strain rate imaging. Results: The prevalence of MS was 7.7%. Weight, body mass index (BMI), waist circumference (WC), glucose, insulin,homeostasis model assessment of insulin resistance, triglyceride and LVMI were significantly increased in the MS group. Highdensity lipoprotein-cholesterol (HDL-C), peak early diastolic myocardial velocity (e’), systolic myocardial velocity (s’) and globallongitudinal strain were significantly lower in the MS group. In univariant analysis, LVMI was significantly correlated with BMI,WC, fat %, fat mass, systolic blood pressure, alanine aminotransferase, total cholesterol (TC) and low density lipoprotein-cholesterol. e’ was significantly correlated with BMI, fat %, fat mass, and HDL-C. Global circumferential strain had significant correlation withglucose and TC. Basal anterolateral strain rate was significantly correlated with weight, BMI, WC, fat %, and fat mass. Conclusion: LVMI, strain and strain rate are practical and accurate parameters for assessment of left ventricular function inadolescents with MS.

상황버섯(Phellinus baumii) 에탄올 추출물의 β-glucan 함량과 항산화 활성

배현경,김주영,홍희도,황인욱,정신교 한국식품영양과학회 2015 한국식품영양과학회 학술대회발표집 Vol.2015 No.8

시비량과 재식밀도 변화에 따른 ‘눈큰흑찰’의 품질 및 수량변화

배현경,오성환,서종호,황정동,김상열,오명규 한국작물학회 2017 한국작물학회지 Vol.62 No.2

‘Nunkeunheugchal’ is a waxy black rice variety that has a large embryo. The quality of black rice depends on the anthocyanin content of the rice seed coat, which is mainly determined by cultivation environment. Factors that affect the anthocyanin content include nitrogen level, planting density, transplanting date and harvesting date. This study was carried out to investigate the optimum black rice cultivation conditions by examining the effects of different nitrogen levels and planting densities. An initial study was conducted to determine the optimum nitrogen level in which four levels of nitrogen were applied to the field (0, 4, 8 and 12 kg/10a). As the nitrogen contents were increased up to 8 kg/10a, there was a concomitant increase in rice yields. However, nitrogen levels greater than 8 kg/10a, the yield was maintained at the same level. Correlation analysis indicated that the optimum nitrogen level for maximum yield was 9.6 kg/10a. In addition, anthocyanin levels showed a trend similar to that of yield, with correlation analysis indicating that the optimum nitrogen level for maximum anthocyanin content is 10.6 kg/10a.On the basis of these results, a second study was conducted to determine the optimum combination of planting density and nitrogen level. The planting densities investigated were 30 × 12, 30 × 14, 30 × 16cm and nitrogen levels were 7, 9 and 12 kg/10a. A high planting density (30 × 12cm) was shown to produce higher numbers of tillers and yield. As calculated in the first study, a nitrogen level of 9 kg/10a shown to produce the highest anthocyanin content and yield. Collectively, the results of this study indicate that a planting density of 30 × 12 cm and a nitrogen level of 9 kg/10a is the optimal combination in terms of maximizing both rice yield and anthocyanin content. Keywords : anthocyanin, black rice, giant embryo, nitrogen fertilizer, planting density 본 실험은 거대배 흑미 품종인 눈큰흑찰의 효과적인 재배를위한 적정질소시비량과 적정재식밀도를 구명하고자 2013년~ 2015년에 밀양에서 실시하였다. 1. 질소시비량이 0 kg/10a에서 8 kg/10a까지 증가하면 주당수수와 수당립수가 증가하여 현미수량이 증가하였지만 8 kg/10a에서 12 kg/10a까지 증가하여도 수량의변화는 없었다. 회귀분석을 통해 얻어진 눈큰흑찰의 최대현미수량을 위한 적정 질소시비량은 9.6 kg/10a였다. 2. 질소시비량이 0 kg/10a에서 8 kg/10a까지 증가하면 안토시아닌의 함량은 높아졌으나 12 kg/10a까지 처리하였을 때는 오히려 감소하였다. 회귀분석을 통해 얻어진눈큰흑찰의 최대 안토시아닌 수량을 위한 적정 질소시비량은 10.6 kg/10a였다. 3. 재식밀도가 증가함에 따라 수수는 증가하고 수당립수는 감소하였는데 밀도 증가에 따른 수수의 증가치가수당립수의 감소치보다 높아 30 × 12 cm의 높은 재식밀도에서 가장 높은 수량을 보였다. 4. 질소시비량 7 kg/10a 수준에서는 재식밀도 차이에 따른 안토시아닌 함량의 차이가 없었고 9, 12 kg/10a 수준에서는 밀도가 높아질수록 안토시아닌 함량이 높아져 30 × 12 cm 수준에서 가장 안토시아닌 함량이 높았다. 현미수량과 안토시아닌 함량을 함께 고려한 안토시아닌 생산량은 질소시비량 9 kg/10a, 재식밀도 30 × 12 cm에서 69.1 g/10a로 가장 높았다.

남부평야지에서 적미 품종의 이앙시기에 따른 폴리페놀 함량 및 수량변이

배현경,오성환,황정동,서종호,김상열,오명규,Bae, Hyun Kyung,Oh, Seong Hwan,Hwang, Jung Dong,Seo, Jong Ho,Kim, Sang Yeol,Oh, Myung Kyu 한국작물학회 2017 한국작물학회지 Vol.62 No.3

For high-quality colored rice production, the cultivation environment is a critical factor. The major environmental factor is temperature, which includes the accumulated and average temperature during vegetative and reproductive stages. Generally, during the cultivation period, the temperature can be controlled by shifting the transplanting date. This study was carried out to determine the optimum transplanting date for high-quality red-colored rice production. Four red-colored rice varieties (Jeokjinju, Jeokjinjuchal, Hongjinju, and Gunganghongmi) were used as test materials. The transplanting dates were May 20 and June 5, 20, and 30 in 2015~2016. The most variable factor controlled by the transplanting date was the grain filling rate. The varieties transplanted on June 30 showed low yields owing to the decrease in the grain filling rate. In contrast, the polyphenol content increased with increasing delay in the transplanting date. Collectively, these two results indicate that the optimum transplanting date was June 20. The average temperature for 30 days after the heading date (30DAH) highly affected the polyphenol content. A lower temperature during the 30DAH induced higher polyphenol contents but also caused low yield. The optimum 30DAH temperature for obtaining a higher yield and polyphenol content was $22{\sim}23^{\circ}C$. Using the average 30DAH and accumulated temperatures, the optimum transplanting date was calculated as June 18 to 24 in Miryang region. The optimum transplanting date of Kyeungsangnamdo region was approximately mid-June to early July, and that of Kyeungsangbukdo region was approximately early to mid-June.

오죽 잎 용매분획물의 항산화 및 항균 활성

배현경,정신교 한국식품저장유통학회 2014 한국식품저장유통학회지 Vol.21 No.4

오죽 잎의 메탄올 조추출물을 극성에 따라 용매분획하고 분획물의 항산화 활성과 항산화 활성, S. aureus 균주에 대한 항균활성을 조사하고 활성성분을 HPLC를 이용하여 정량하였다. 용매분획물 중에서 ethyl acetate 분획물의 DPPH radical 소거 활성, FRAP활성이 모두 가장 강하였으며, 총페놀성 화합물의 함량도 가장 높았다. S. aureus 균주에 대한 항균활성 역시 ethyl acetate 분획물이 모든 시험 농도에서 가장 높은 활성을 보였다. Ethyl acetate 분획물 중에서 caffeic acid, ferulic acid, quercetin, kaempferol 성분을 분리하여 정량하였으며 이 중 kaempferol의 함량이 가장 높았다. 오죽 잎의 ethyl acetate 분획물은 천연 식품보존료로서 활용이 가능할 것으로 보인다.

命理約言 과 滴天髓闡微 의 육친 연구

배현경 한국문화융합학회 2022 문화와 융합 Vol.44 No.3

The purpose of this paper is that Myeongrihak, which has grown with the history of China, should not be an anachronistic study. The research method aims to consider the direction of Myeong-ri research by classifying immutable elements and variable areas based on Myeongrihak. It is common to see the principle of yin and yang five elements, which is the basis of Myeongrihak, as already completed in the Warring States period in ancient China, Myeongrihak was born in the Song Dynasty and laid the foundation for specific studies along with Confucianism. In particular, Jin So-am's myeongliyag-eon and Im Cheol-cho’s Jeokcheon sucheonmi, written at the end of Ming Dynasty and Qing Dynasty, applied Confucian customs excessively, so they missed the basis of Myeongrihak based on the principles of nature. Since Myeongrihak is a study dealing with human history, it is natural to capture the phenomena of society at the time in the way of simplification, but it will be difficult for the classical method to have practical value in modern society. There is a clear argument in the Myeongrihak community that classics should not be followed, but since books that serve as textbooks for Myeongrihak are rare, they seem to have a stronger tendency to preserve classics even though they are obvious.

부타액선에서 발생한 다형성 선종 : 증례보고

배현경,송치원,김진철,김성곤,박영주,홍삼표,조병욱 대한악안면성형재건외과학회 2003 Maxillofacial Plastic Reconstructive Surgery Vol.25 No.5

S-OJT에서 Kolb의 경험학습과정에 대한 경로 탐색

배현경,조대연,윤소겸,이윤수 한국농·산업교육학회 2013 농업교육과 인적자원개발 Vol.45 No.4

본 연구는 직장 내 신입직원들을 대상으로 시행되는 S-OJT 활동이 Kolb가 제시한 4단계의 순서적인 경험학습과정에 기초하고 있는지를 분석해보고자 한다. 또한 S-OJT 상황에서 어떤 다른 형태로 Kolb의 경험학습과정이 변형될 수 있는지를 탐색하고자 한다. 이를 위해 Z그룹 S-OJT 프로그램에 참여한 신입직원 350명을 대상으로 설문조사를 실시하였고, 최종적으로 302부의 설문지가 분석에 사용되었다. 자료 분석은 구조방정식을 활용하였다. 연구 결과, 조직 내 S-OJT 활동은 Kolb가 제시한 경험학습 모형 외 3개의 변형된 형태로 발생됨을 확인하였다. 그 모형들은 구체적 경험→능동적 실험→반성적 관찰→추상적 개념화, 구체적 경험→추상적 개념화→반성적 관찰→능동적 실험, 구체적 경험→능동적 실험→추상적 개념화 →반성적 관찰로 모든 경로 값이 통계적으로 유의한 것으로 나타났다. 특히 구체적 경험과 반성적 관찰, 추상적 개념화와 능동적 실험은 상대적으로 상호 영향력이 높은 것으로 나타났고, 구체적 경험과 추상적 개념화, 구체적 경험과 능동적 실험은 상대적으로 다른 과정에 비해 상호 영향력이 낮은 것으로 분석되었다. 이와 같은 연구결과를 바탕으로 직장 내 S-OJT 상항에서 경험학습은 Kolb가 제시한 하나의 고정된 순차적 과정뿐만 아니라 다양한 형태로 전개될 수 있음을 확인하였으며, 이를 바탕으로 효과적인 S-OJT 활동을 위한 실천적 함의를 제안하였다. The purpose of this study is to explore whether Kolb's experiential learning process is applied to S-OJT programs for new employees. It also investigates how Kolb's experiential learning process can be modified under the S-OJT setting. To do these, a questionnaire was distributed to 350 new employees who participated in S-OJT programs provided by Z group. 302 questionnaires were usable. The results showed that there were 3 transformed experiential learning processes that were valid for use in S-OJT beyond Kolb’s original process. The three transformed experiential processes include the following ways: concrete experience → active experiment → reflective observation → abstract conceptualization; concrete experience → abstract conceptualization → reflective observation → active experiment; and concrete experience → active experiment → abstract conceptualization → reflective observation. This study found that concrete experience was highly related with reflective observation and abstract conceptualization was highly related with active experiment in all models. This study also found that concrete experience was weakly related with abstract conceptualization and concrete experience weakly related with active experiment as well. As such, Kolb's experiential learning process works with other ways beyond Kolb’s original process in S-OJT settings. Finally, the study discussed some practical implications for S-OJT based on experiential learning.