A Study on the Functionality of Halophytes from Coast area of Jeollanam-do

Tae-Man Ha,Yang-Joon An,Mi-Yeong Shin,Sook Park,Hak-Jae Park,Hyo-Jeong Kang,Su-Jeong Choi,Jae-Yeong Yu,Ji-Yun Jeon,Gyu-Yeon Oh 한국식품영양과학회 2021 한국식품영양과학회 학술대회발표집 Vol.2021 No.10

This study was undertaken to improve the perceived value of halophytes and contribute to the activity of the local economy by analyzing the antioxidant activity and mineral content of Suaeda japonica, Tetragonia tetragonoides, and Spergularia marina that grow wild on the mud flats and coastal areas. The total phenolic compound content found in each order is as follows: Suaeda japonica (3.674∼5.989 mg TAE/g dry wt.), Tetragonia tetragonoides (2.515∼4.471 mg TAE/g dry wt.), and Spergularia marina (2.450∼4.067 mg TAE/g dry wt.); DPPH radical scavenging and ABTS cation radical scavenging activities were also recorded in the same order. In the case of minerals, Iron(Fe) was relatively high in Suaeda japonica (960.1∼1,346.7 mg/kg), Manganese(Mn) in Tetragonia tetragonoides (197.1∼574.8 mg/kg), and Zinc(Zn) was relatively high in Spergularia marina (63.19∼216.56 mg/kg). It was confirmed that the mineral content of Suaeda japonica, Tetragonia tetragonoides, and Spergularia marina was significantly higher than that of Chinese cabbage, lettuce, leek, and spinach.

21가지 장미꽃 품종의 페놀성 화합물 함량 및 항산화 활성

조연재(Yeon Jae Jo),서정현(Jeong Hyun Seo),홍채영(Chae Young Hong),김성태(Seung Tae Kim),최은경(Ehn-Kyoung Choi),김윤배(Yun-Bae Kim),이준수(Junsoo Lee),정헌상(Heon Sang Jeong) 한국식품영양과학회 2021 한국식품영양과학회지 Vol.50 No.4

본 연구는 21품종의 장미꽃에 대한 식품 및 화장품 원료로 사용 가능성을 살펴보기 위해 페놀성 화합물과 항산화 활성을 평가하였다. 총 폴리페놀, 총 플라보노이드 및 타닌 함량은 러버샤이 품종에서 각각 379.70 mg GAE/extract g, 50.10 mg CE/extract g 및 339.44 mg TAE/extract g으로 높게 나타났으며, 칠백리 품종에서 각각 107.25 mg GAE/extract g, 9.46 mg CE/extract g 및 36.31 mg TAE/extract g으로 낮았다. 페놀산 함량은 총 폴리페놀 함량과 유사한 결과를 보였으며, 러버샤이 품종에서 27.40 mg/extract g으로 높았다. 안토시아닌은 대부분 cyanidin-3,5-diglucoside로 확인되었으며 총 안토시아닌 함량은 유니나 품종에서 8.80 mg/extract g으로 가장 높았다. ABTS 및 DPPH 라디칼 소거 활성은 각각 428.10 및 419.59 mg AAE/extract g로 러버샤이 품종에서 가장 높았으며, 항산화 활성과 페놀 화합물의 함량과 높은 양의 상관관계를 보였다. 이러한 결과는 러버샤이와 같은 항산화 활성이 뛰어난 품종들이 관상 목적뿐만 아니라 높은 기능성을 가진 식품 및 화장품의 원료로 사용 가능성이 있다고 판단된다. This study evaluated the functional components and antioxidant activities of 21 different rose flower extracts, to confirm their value as a food and cosmetics ingredient. The highest values of total polyphenol, flavonoid and tannin contents (379.70±1.64 mg GAE/extract g, 50.10±0.76 mg CE/extract g, and 339.44±1.20 mg TAE/extract g, respectively) were obtained in Lover Shy. The proanthocyanidin content ranged from 61.88 mg CE/extract g in the Unina cultivar to 5.34±0.13 mg CE/extract g in the Aileen cultivar. The phenolic acid content obtained was highest in the Lover Shy cultivar (27.40±0.26 mg/extract g), whereas highest levels of anthocyanin (8.83±0.03 mg/extract g) were obtained in the Unina cultivar. High ABTS and DPPH radical scavenging activities were determined in the Lover Shy cultivar (428.10±0.29 and 419.59±3.12 mg AAE/extract g, respectively). Taken together, these results indicate that the antioxidant activity and functional components of Lover Shy cultivar are superior, and this extract can potentially be applied as a food and cosmetic ingredient.

비수리(Lespedeza cuneata G. Don) 메탄올 추출물로부터 분획된 용매분획물의 항산화활성과 α-Glucosidase 저해활성

김현영(Hyun Young Kim),고지연(Jee Yeon Ko),송석보(Seuk Bo Song),김정인(Jung In Kim),서혜인(Hye In Seo),이재생(Jae Saeng Lee),곽도연(Do Yeon Kwak),정태욱(Tae Wook Jung),김기영(Ki Young Kim),오인석(In Seok Oh),정헌상(Heon Sang Jeong),우 한국식품영양과학회 2012 한국식품영양과학회지 Vol.41 No.11

비수리의 식품학적 이용가능성을 확인해 보고자 항산화성분 및 항산화활성, superoxide dismutase 유사활성, α-glucosidase 저해활성 등에 대해 검토하였다. 비수리 메탄올 추출물과 hexane, chloroform, ethyl acetate, butanol 및 물 분획 등 순차적 용매분획물의 총 폴리페놀 함량은 각각 12.44, 3.61, 6.39, 27.11, 20.00 및 9.32 ㎎ GAE/g extract residue(ER)로 나타났으며, 총 플라보노이드 함량은 각각 2.94, 9.92, 7.77, 9.27, 5.11 및 2.66 ㎎ CE/g ER, 총 탄닌 함량은 각각 8.75, 10.04, 7.42, 17.32, 11.65 및 7.61 ㎎ TAE/g ER, 총 프로안토시아니딘의 함량은 346.09, 63.50, 103.76, 288.62, 231.99 및 358.48 ㎍ CE/g ER로 나타났다. 비수리 메탄올 추출물과 hexane, chloroform, ethyl acetate, butanol 및 물 분획물의 DPPH radical 소거활성은 각각 20.62, 5.16, 9.29, 20.80, 20.00 및 20.79 ㎎ TE/g ER, ABTS radical 소거활성은 각각 33.86, 9.24, 17.36, 33.76, 33.49 및 33.86 ㎎ TE/g ER로 나타났다. SOD 유사활성은 각각 4.12, 0.61, 2.01, 9.89, 13.47 및 11.82 unit/mL의 활성을 보여 butanol 분획과 물 분획에서 유의적으로 높은 활성을 나타내었고 α-glucosidase 저해활성은 물 분획 50 및 25 ㎍/mL에서 각각 93.85 및 61.64%로 높은 저해활성을 보이는 것으로 나타났다. 이상의 결과에서 비수리 추출물은 항산화성분 및 항산화활성, SOD 유사활성, α-glucosidase 저해활성을 가지는 물질을 함유한 것으로 보이며, 체내 및 식품에서 활성산소 종 제거에 도움을 줄 수 있을 것으로 보인다. The purpose of this study was to evaluate the antioxidant contents and antioxidant activities of solvent fractions from methanolic extract of sericea lespedeza. To determine the antioxidant compounds in solvent fractions from methanolic extract, total polyphenolic, flavonoid, tannin, and proanthocyanidin contents were measured by spectrophotometric methods. Solvent fractions were evaluated for antioxidative capacity according to DPPH and ABTS radical scavenging activities. Total polyphenolic contents were 12.44, 3.61, 6.39, 27.11, 20.00, and 9.32 ㎎ gallic acid equivalent (GAE)/g extract residue (ER), respectively. Total flavonoid contents were 2.94, 9.92, 7.77, 9.27, 5.11, and 2.66 ㎎ catechin equivalent (CE)/g ER, respectively. Total tannin contents were 8.75, 10.04, 7.42, 17.32, 11.65, and 7.61 ㎎ tannic acid equivalent (TAE)/g ER, respectively. Total proanthocyanidin contents were 346.09, 63.50, 103.76, 288.62, 231.99, and 358.48 ㎍ CE/g ER, respectively. DPPH radical scavenging activities of solvent fractions from methanolic extract of sericea lespedeza were 20.62, 5.16, 9.29, 20.80, 20.00 and 20.79 ㎎ Trolox equivalent (TE)/g ER, and ABTS radical scavenging activities were 33.86, 9.24, 17.36, 33.76, 33.49, and 33.86 ㎎ TE/g ER, respectively. SOD-like activities were 4.12, 0.61, 2.01, 9.89, 13.47, and 11.82 units/mL, and α-glucosidase inhibition activities were 93.85 and 61.64% at concentrations of 50 and 25 ㎍/mL in the water fraction, respectively. The results of this study show that notable antioxidant activities in sericea lespedeza have significant health benefits.

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.

맨드라미(Celosia cristata L.) 꽃 메탄올 추출물로부터 용매분획된 분획물의 항산화활성

김현영(Hyun Young Kim),고지연(Jee Yeon Ko),송석보(Seuk Bo Song),김정인(Jung In Kim),서혜인(Hye In Seo),이재생(Jae Saeng Lee),곽도연(Do Yeon Kwak),정태욱(Tae Wook Jung),김기영(Ki Young Kim),오인석(In Seok Oh),정헌상(Heon Sang Jeong),우 한국식품영양과학회 2012 한국식품영양과학회지 Vol.41 No.11

맨드라미꽃의 식품학적 이용가능성을 확인해 보고자 항산화성분 및 항산화활성에 대해 검토하였다. 맨드라미꽃의 항산화성분과 활성은 메탄올 추출물과 순차적 용매분획물에 대해 측정하였으며, 메탄올 추출물과 hexane, chloroform, ethyl acetate, butanol 및 물 분획물의 추출수율은 각각 23.33, 10.27, 20.00, 13.63, 17.55 및 38.54%였다. 맨드라미 꽃 메탄올 추출물의 총 polyphenol, flavonoid 및 tannin 함량은 각각 6.80 ㎎ GAE/g ME, 2.34 ㎎ CE/g ME 및 6.23 ㎎ TAE/g ME였다. 순차적 용매분획물 중 butanol 분획에서 각각 14.92 ㎎ GAE/g SF, 5.44 ㎎ CE/g SF 및 13.38 ㎎ TAE/g SF로 함량이 높았다. 총 proanthocyanidin 함량은 44.72 ㎍ CE/g ME였고 순차적 용매분획물은 각각 42.47, 44.43, 50.03, 49.12 및 41.80 ㎍ CE/g ER로 용매간 유의적인 차이를 보이지 않았다. 맨드라미꽃의 메탄올 추출물의 DPPH 및 ABTS radical 소거활성은 각각 5.24 및 10.70 ㎎ TE/g ME였고 butanol 분획에서 각각 12.53 및 21.09 ㎎ TE/g SF로 활성이 높았다. 메탄올 추출물의 SOD 유사활성은 7.96 unit/mL로 나타났고 hexane, chloroform, ethyl acetate, butanol 및 물 분획물은 각각 4.56, 6.15, 8.07, 12.36 및 5.21 unit/mL로 butanol 분획의 활성이 높았다. 맨드라미꽃 추출물의 항산화성분과 항산화활성 간에 높은 정의 상관관계를 보였고 맨드라미꽃 추출물이 체내 및 식품에서 유익한 도움을 줄 수 있을 것으로 생각된다. The purpose of this study was to evaluate the antioxidant contents and activities of solvent fractions from methanolic extracts of cockscome flowers. The yield of methanolic extracts from cockscome flowers was 23.33%, whereas those of its solvent fractions (hexane, chloroform, ethyl acetate, butanol, and water) were 10.27, 20.00, 13.63, 17.55, and 38.54%, respectively. Total polyphenolic, flavonoid, tannin, and proanthocyanidin contents of methanolic extracts (ME) were 6.80 ㎎ gallic acid equivalent (GAE)/g ME, 2.34 ㎎ catechin equivalent (CE)/g ME, 6.23 ㎎ tannic acid equivalent (TAE)/g ME, and 44.72 ㎍ CE/g ME, respectively. The highest total polyphenolic, flavonoid, and tannin contents of solvent fractions were 14.92 ㎎ GAE/g solvent fraction (SF), 5.44 ㎎ CE/g SF, and 13.38 ㎎ TAE/g SF in the butanol fraction, respectively. The total proanthocyanidin contents were 42.47, 44.43, 50.03, 49.12, and 41.80 ㎍ CE/g SF, respectively. The DPPH and ABTS radical scavenging activities from cockscome flowers were 5.24 and 10.70 ㎎ Trolox equivalent (TE)/g ME, respectively. The highest DPPH and ABTS radical scavenging activities of the solvent fractions were 12.53 and 21.09 ㎎ TE/g SF in the butanol fraction, respectively. SOD-like activities of methanolic extracts from cockscome flowers were 7.96 units/mL, whereas those of its solvent fractions were 4.56, 6.15, 8.07, 12.36, and 5.21 units/mL, respectively. The results of this study show that notable antioxidant activities in cockscome flowers have significant health benefits.

형질전환 제초제저항성 벼 밀양 204호의 농업적 특성

정응기,이기환,원용재,박향미,전남수,최준호,구연충,한창덕,은무영,김태산,남민희 Plant molecular biology and biotechnology research 2005 Plant molecular biology and biotechnology research Vol.2005 No.

This study was conducted to investigated the major characteristics of genetically modified rice of "Milyang 204" originated from Dongjinbyeo compared to a non-transgenic rice varieties Dongjinbyeo and Junambyeo. Basta resistant transgenic rice lines carrying bar gene produced by the Yeongnam Agricultural Research Institute were evaluated for their agronomic characters. The transgenic Japonica rice of "Milyang 204" showed inferior phenotypic traits compared to a non-transgenic rice variety Dongjinbyeo and Junambyeo. On the basis of UPOV (Union Internationale Pour la Protaection des Obtentions Vegetables) and NSMO(National Seed Management Office) the transgenic "Milyang 204" showed difference in some traits out of some agronomic traits, such as leaf color, angle of flag leaf, number of spikelets, culm length, white core and white belly compared to the nontransgenic varieties rice.

DirectX 기반 다채널 영상 감시 시스템 구현 및 성능분석

정연권,정선태 崇實大學校 生産技術硏究所 2002 論文集 Vol.32 No.-

Multichannel visual monitoring systems such as DVR (Digital video Recording System)s have to process video data steams which are characterized by their large volume of data and their continuous time properties. Thus, multichannel visual monitoring systems may not show satisfactory performances in display, recording, retrieval and playback of video data if one does not design the architecture of S/W precessing of video data streams efficiently. Microsoft Windows environments provide DirectX for efficent processing of multimedia streams. One additional advantage of DirectX is that many commercial and open source multimedia CODECs support DirectX. Thus, if one applies DirectX technology in windows based multichannel visual monitoring systems, one may achieve performance gains and flexibility in the choice of video compression CODECs. In this paper, we present a multichannel monitoring system efficiently designed based upon DirectX. Improvement of performances in respect of speed in display, recording, retrieval and playback of video data is analyzed and verified through experiments.

불완전 전뇌 허혈후 소생의 백서 모델을 이용한 재관류 뇌혈류량과 허혈성 뇌조직 손상도와의 관계

서정필,송근정,황태식,정연권,신백효,김승호 大韓應急醫學會 1999 대한응급의학회지 Vol.10 No.2

Background: Experimental data indicate that low-flow reperfusion following prolonged cardiocirculatory arrest may aggravate early cerebral microcirculatory reperfusion disorders. We investigated the influence of cerebral reperfusion flow change to the ischemic histopathologic damage of brain tissue after incomplete forebrain ischemia in rats. Materials and method: Anesthetized Sprague-Dawley rats were undergone ligation of both internal carotid artery by microvascular clamp for 10 minutes. After release of the clamp, reperfusion was started with several different flow levels (0, 10, 20, 30, 50, and 100%) of internal carotid artery comparing to pre-clamping phase using flowmeter. After 15minutes of reperfusion, rat brains were prepared by perfusion-fixation with 3% formaldehyde. Under light microscopic examination of Hematoxylin-Eosin stained tissue slide, histopathologic damage was examined at cortex, putamen, and hippocampus regions. Categorical hisotopathologic damage scores were derived in each regions by manual counts of ischemic neurons. Result: The histopathologic damage scores were 0, 10.2±0.5, 7.6±1.5, 5.9±1.4, 5.0±2.8, 3.5±0.7, and 1.0±0.0 in control, 0, 10,20, 30, 50, and 100% reperfusion groups, respectively(p<0.05). Conclusion: Our results showed significant increment of brain histopathologic damage scores along with decreasing amount of cerebral reperfusion flow after incomplete forebrain ischemia. We believe restoration of reperfusion flow to pre-ischemic level would be a critical component in attenuation of brain ischemic damage.

광경화형 로진유도체의 합성과 그 특성

심상연,홍영택,정연태 국립7개대학공동논문집간행위원회 2004 공업기술연구 Vol.4 No.-

Rosin moiety-containing monomers were prepared by the reaction of abietic acid with 1,4-butanediol vinyl ether, ethylene glycol vinyl ether and diethylene glycol vinyl ether using diethyl azodicarboxylate as a catalyst. These new monomers were photo-polymerized to give thin films in the presence of a sulfonium salt containing long alkyl chain. The rate of photopolymerization and amount of cured polymer were determined using real-time infrared technique. The final conversion of double bond is achieved in less than 30sec.

참외 흰가루병에 대한 살균제의 예방 및 치료효과 검정

장태현,류연주,임혜정,임수진,최미영,정병룡,김철웅,이용세 한국환경농학회 2006 한국환경농학회지 Vol.25 No.1