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품종에 따른 수수 메탄올 추출물 및 용매분획물의 항산화활성
우관식, 김정인, 고지연, 이재생, 송석보, 정태욱, 김기영, 곽도연, 오인석, 정헌상 忠北大學校 農業科學硏究所 2013 農業科學硏究 Vol.29 No.1
The purpose of this study was to evaluate the antioxidant contents and activities of solvent fractions from methanolic extracts of sorghum according to varieties. The cultivated varieties were Hwanggeumchal-susu (HS), Milo-susu (MS) and Jungmo 4001 (JM4). The yield of methanolic extract of HS was 4.37%, whereas those of its solvent fractions (hexane, chloroform, ethyl acetate, butanol, and water) were 8.82, 2.46, 5.24, 24.49, and 47.23%, respectively. The highest total polyphenol, flavonoid, tannin, and proanthocyanidin contents of methanolic extracts (ME) were 30.33 mg GAE/g ME, 4.69 mg CE/g ME, 25.86 mg TAE/g ME, and 675.09 μg CE/g ME from HS, respectively. The highest total polyphenol and flavonoid contents of solvent fractions (SF) were 52.87 mg GAE/g SF and 18.86 mg CE/ g SF in ethyl acetate fraction of HS, respectively. The highest total tannin and proanthocyanidin contents of solvent fractions were 39.27 mg TAE/g SF and 1210.74 μg CE /g SF in the butanol fraction of HS, respectively. The highest DPPH and ABTS radical scavenging activities of the solvent fractions were 20.54 and 33.85 mg TE/g SF in ethyl acetate fraction of HS, respectively. The highest catalase activity of the solvent fractions was 67.92 nmol/min/mL in ethyl acetate fraction of HS. The superoxide dismutase- like activities of methanolic extracts from HS, MS and WS were 20.22, 20.00 and 3.14 unit/mL, respectively. The results of this study show that notable antioxidant activities in sorghum flowers have significant health benefits.
빈우성(Bin, Woo-Seong),김진태(Kim, Jin-Tae),곽낙현(Kwak, Nak-Hyun) 한국사회체육학회 2014 한국사회체육학회지 Vol.0 No.58
The purpose of this study is to examine the role and outcome of the National martial art competition of correctional staff. The results of the examination are as follows. First, we can find out the fact that ‘The martial match of prison guard’ was held every year through the article of the newspaper‘Chosun ilbo’and ‘Maeil sinbo which wered aily newspapers at that time. That match is origin of the National martial art competition of correctionasl taff during the Japan’s reign. After the independence in 1945, the first competition with the same name of previous one was held in the gym of prison guard academy only with Judo, July 4th in 1949, And the second compeittion was hosted in the same place, May 14th in 1955. Kumdo is included to the match officially, since then. Tae-kwondo is added at 16th competition in 1978. Since then, there have been three kinds of martial a, rtJudo, Kumdo, Taekwondo, which are officially recognized and implemented annually until the 48th competition in 2013. Second, Each martial art performance of Kumdo, Judo, Taekwondo, has been shown before the main event. Judo performance was shown in the gym of the correctionl aofficer academy in 1949 at the first competition, and bon- standard posture of each martial art - was eprformed in Judo, Kumdo. Moreover the performance of slicing a sheaf of straw by real sword was included in Kumdo performance. It was good opportunity to impress the staff members of ministry of justice and civilian about martial art spirit of correctional officer. At present, the organizing and preliminary practice of the peorfrmance is executed by the hand of martial art professors who are dispatched to the institute of justice. Th ispractice maintains for one month, based on the scenario and teaching by them. Third, the annual match became a good chance to improve jobk isll and organizational capability, during the preparation of the competition. Especifically, there are alo t of resource for the impovement. So to speak, the martial art curriculum of institute of justice, hiring maestr level employees, activate martial art club in correction facility, friendly match with Japan correction service ,chance for the promotion are good base for the improvement. There are currently about 4,100 martial art trainees which are divided into 1,300 Judo trainees, 1,300Kumdo trainees, 1,500 Taekwondo trainees that are affiliaetd with national correctional centers. Furthermore, there are about 350senior experts that have a master level, fourth-degree black belt or higher. The martial art clubs of the 50 correction facilities contribute t oimprove martial art skill for the correctional staffs and make positive image about correctional service in their community through providing martial art lecture and exchanging their skill.
Staphylococcus epidermidis에 의한 자연판막 심내막염 1례
송화영,곽이경,김민,조종래,엄태현,장우익 대한감염학회 2009 감염과 화학요법 Vol.41 No.5
Although Staphylococcus epidermidis is a frequent cause of prosthetic valve endocarditis (PVE), it is regarded as a rare pathogen of native valve endocarditis (NVE). We report a case of NVE caused by methicillin-resistant S. epidermidis in a 62-year-old man. The bacterium was isolated from blood and tissue culture. The patient underwent valve replacement due to heart failure and was successfully treated by surgery and vancomycin administration for 7 weeks.
팥 품종별 볶음시간에 따른 팥과 팥차의 이화학적 특성 및 항산화활성의 변화
송석보(Seuk Bo Song),고지연(Jee Yeon Ko),김정인(Jung In Kim),이재생(Jae Saeng Lee),정태욱(Tae Wook Jung),김기영(Ki Young Kim),곽도연(Do Yeon Kwak),오인석(In Seok Oh),우관식(Koan Sik Woo) 한국식품과학회 2013 한국식품과학회지 Vol.45 No.3
This study investigated the changes in physicochemical characteristics of adzuki bean (Vigna angularis var. nipponensis) tea depending on the variety and roasting times, for the development of functional foods. The levels of total polyphenol, flavonoids, and tannin contents were 12.72 ㎎ gallic acid equivalent (GAE)/g, 3.01 ㎎ catechin equivalent (CE)/g, and 3.56 ㎎ tannic acid equivalent (TAE)/g, respectively, for the Jeolgangsung-ipat sample roasted for 16 min. The highest DPPH (1,1-diphenyl-2-picrylhydrazyl) radical scavenging activity was 7.81 ㎎ Trolox equivalent (TE)/g in Bulgeun-ipat sample that was roasted for 14 min. The highest total polyphenol content in the hot water-leached liqueur of adzuki bean tea was 26.55 μg GAE/100 mL in Yungum-pat that was roasted for 12 min. The total flavonoids and tannin contents of Whin-ipat and Jeolgangsung-ipat roasted for 10 min were 15.10 μg CE/100 mL and 14.60 μg TAE/100 mL, respectively. The highest DPPH and ABTS (2,2’-azino-bis-3-ethylbenzo-thiazoline-6-sulfonic acid) radical scavenging activities of hot water-leached liqueur of adzuki bean tea were 488.72 and 728.25 ㎎ TE/100 mL, respectively, in Yungumpat roasted that was for 12 min. The results of this study show that roasted adzuki bean tea has notable antioxidant activity and is considered to have significant health benefits.
Kwak, Tae Joon,Kwon, Wookkun,Yang, Jiang,Lee, Sang Woo,Chang, Woo-Jin The Royal Society of Chemistry 2018 Analytical methods Vol.10 No.38
<P>Paper fluidics has recently offered an approach to precisely guide liquid flow in analytical devices with a low-cost regime. Multiple paper layers expand the capability of analytical devices to handle multiple samples as well as multiple detections simultaneously. Here we present a novel inexpensive cut-and-insert method to achieve a well-controlled even distribution of liquid in multi-channel three-dimensional (3D) paper-based analytical devices. A novel vacuum-driven poly dimethyl siloxane (PDMS) stamping method to pattern hydrophobic barriers in the filter paper enables rapid fabrication and assembly of microfluidic paper-based analytical devices (μ-PADs). The cut-and-insert assembly method facilitates more efficient fluid transfer than conventional O2 plasma-assisted overlapped channel binding, due to the strong physical contact between connected layers. The liquid transfer starts from the center region where two inserted layers are overlapped, and thus the presented method enables consistent liquid transfer independent of the angles of connected fluidic paths. Consequently, the angles between the connected μ-PAD strips as well as the 3D distance for the fluid transfer can be freely adjusted as needed. Also, multiple strips can be easily connected in series or in parallel. For example, perpendicularly connected bended paper channels guide upward and then lateral liquid flows by capillary action. Three important assays, <I>i.e.</I> nitrite 0 to 2 ppm, pH 1 to 10, and glucose 0 to 0.22 molL<SUP>−1</SUP>, were successfully implemented and measured simultaneously using a device with four strips connected in parallel.</P>