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.

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.

개에서 발생한 우동맥궁잔존증의 수술적 치료의 증례

김성태,정성목 忠南大學校 獸醫科大學 附設 動物醫科學硏究所 2011 動物醫科學硏究誌 Vol.18 No.1

A six-month-old Jindo dog was admitted with history of postprandial regurgitation. The dog began regurgitating 3 months before. The dog was thin, underweighted and had a coarse hair coat. The cervical esophagus was palpable after meal. Contrast esophagram revealed distended esophagus cranial to the base of heart and contrast material accumulated in the esophagus. Tentative diagnosis was made on the basis of history, physical examination findings and a contrast esophagram. The dog diagnosed with Persistent right aortic arch by surgical exploration. Surgical ligation and division of the ligamentum arteriosum and balloon dilatation of stricture site were performed. After surgical correction, the follow up of prognosis after 2 month was excellent.

폐경기여성에서 시청각 교육이 호르몬대체요법의 시행과 골다공증관련 생활습관의 변화에 미치는 효과

정태흠,전태희,김문찬,김영일,전대준,양승오,함수연,고병균,김성률 大韓家庭醫學會 2000 Korean Journal of Family Medicine Vol.21 No.11

초등학교 과학과 멀티미디어 안전교육 자료 개발

정지웅,공영태,김성규 晋州敎育大學校 科學敎育硏究院 2006 科學敎育硏究 Vol.29 No.-

The purpose of this study was to develop safety instruction material that can use efficiently through analyze segments connected with safety in elementary science material field experiment. Therefore, established following assignment to achieve purpose of this study. First, analyze whether there are some things on hazardous factor that can be connected to safety accident at elementary science material field experiment. Second, develop multimedia material for effective safety instruction. Third, recognize teacher's legal liability through published paper and case study. To settle the above subject, secures theoretical basis through literature study and collected datas connected with safety instruction through internet search. Also analyzed risk factor and safety connection contents that can be connected to safety accident through the 7th elementary science textbooks. Then arrange this systematically and made a story board. Safety connection animation datas that film by camcorder edited by vegas 4.0 and used Macromedia company's Director MX developing multimedia material. before scientific experiment class beginning or when educate safety, divide into greatly 6 low rank menus to use easily necessary member and arranged connection menus inside. All materials were manufactured to use easily maximum for user. This material will prevent beforehand accident to occur because make an experimenter know enough safety precaution, safety equipment, experiment tool directions etc. when safety accident occurred, will help unconnect to large size accident because do quick emergency measure.

레진 표면처리제가 열가소성 의치상 레진과 자가중합형 이장 레진 간의 결합강도에 미치는 여향

정창모,문태성 大韓齒科器材學會 2001 대한치과재료학회지 Vol.28 No.4

The introduction of several thermoplastic polymers was intended to overcome the disadvantages of methacrylate denture base resins. Existing dentures often require denture base relines to improve the fit against the tissue bearing mucosa because of gradual changes of underlying bone structure. Chair-side reline that used autopolymerizing acrylic resin is not only convenient but inexpensive means to improve the fit and function of denture bases. However, it is not known whether the differences in chemical composition of resin surface primers affect the bonding strengths between chair-side reline resin and thermoplastic denture base resin. This study evaluated two kinds of primers(exclusive primer recommended by manufacture of thermoplastic resin and primer supplied with chair-side reline resin) to determined their effect on the bond strengths of a chair-side reline resin to two different thermoplastic denture base resins(polycarbonate and polyacetal resin) by use of a three-point transverse flexural strength test. In both polycarbonate and polyacetal resin, each exclusive resin surface primer resulted in higher bond strength than chair-side reline resin primer(p<0.05). Bond strengths of polycarbonate with chair-side reline resin were higher than those of polyacetal resin, despite the type of resin surface primer(p<0.05).

SM20C 旋削時 加工條件 變化에 따른 칩 形狀에 관한 硏究

정태상,황광성,김명규,김길진,박영태 진주산업대학교 산업과학기술연구소 2007 산업과학기술연구소보 Vol.- No.14

This study was to look for cutting conditions which are safe, comfortable and contributable to the increase in productivity at the time in turning. The shape of chips while turning have a strong effect on cutting processing. If chips fail to be well controlled, systematic cutting is not possible by revolution of chips entangled with workpiece or damage of tool edges, and this causes problems threatening the safety of the operator. This study is designed to identify conditions which chips effectively controlled and able to treat properly, and the results are as follows: 1. Feed rate, which determined the shape of chips, was found to have a stronger impact on the shape of resulting chips than any other cutting condition. 2. When feed rate was 0.25mm or over, controlled chips(coil spring type) were produced under whatever cutting conditions. 3. When feed rate was 0.25mm or over and depth of cut was 1.0mm, well-controlled shorter coil type chips were produced at every spindle speed, which implied they were the most suitable cutting conditions. 4. Feed rate 0.2mm was found to be an unstable section where coil spring and linear mixed type chips were produced together, and as feed rate decreased, more linear chips beyond control were produced. 5. At the same spindle speed, as the diameter of the material became bigger, controlled chips were produced only when the depth of cut was reduced, and vice versa under feed rate 0.2mm. 6. At the same feed rate, the lower spindle speed was, the more stable chips were produced.

분화용 방향성 허브의 선호요인에 관한 연구

정정섭,권상준,조태동 韓國植物ㆍ人間ㆍ環境學會 2000 인간식물환경학회지 Vol.3 No.1

It is to present basic information on herb utilization in the future by understanding the preference factors of pot aromatic herbs through measuring analysis approach. To find out preference factors of pot aromatic herbs, we have selected 14 commonly favored herbs based on sales volume of major domestic pot-herb dealers through interviewing. At first we have studied the perceptive characteristics of herbs such as aroma, form, color and texture. And then, we have executed Duncan test by One-way ANOVA, factor analysis, meaningful difference verification between factors, and comparative analysis between averages. We have also studied on influence of correlation between the deference according to perceptive characteristics and the comprehensive preference. To understand the factorsin detail, we have executed Multiple Regression Analysis on correlations between the characteristics and the preference. Followings are the conclusions we have got from the study. 1. According to the results of Factor Analysis, there are three factors that can be perceived from the herbs. Those three factors can explain 61.70% of perceptive characteristics. It can be represented groups of factors such as Aromatic characteristics, Repose characteristics and Appreciation of beauty. Among them, from psychological factors, aroma related variable explains the best, beauty appreciation characteristics related variable the least. 2. According to the results of correlation analysis between comprehensive preference level and the specific preference level according to each perceptive characteristics, there are big differences between preference level by aroma and that by beauty and shows the highest correlation to the comprehensive preference of pot herbs. To see how much influence the beauty of herb makes on the comprehensive preference, we have executed the Regression Analysis. From the test, we knew that color was the most influential factor from the beauty characteristics. 3. To understand the factors shown in preference analysis in detail, we have executed the Multiple Regression Analysis on the correlation between perceptive characteristics and comprehensive preference. From the test, we concluded that pot aromatic herbs preference is decided by its fragrance, beauty of color and pleasant and happy smell it has.

항공기 피로수명 예측을 위한 파면해석

정유인,이태주,장영환,김상식 대한금속ᆞ재료학회 2006 대한금속·재료학회지 Vol.44 No.3

광중합 Glass lonomer Cement와 Amalgam의 결합강도에 관한 연구

정태성 大韓小兒齒科學會 1996 大韓小兒齒科學會誌 Vol.23 No.2

소아치과 임상에서 자주 사용되는 3 종의 광중합형 GIC의 아밀감에 대한 접착능을 평가할 목적으로 60개의 아밀감 부착시편을 이용하여 중간결합제인 Scotchbond의 사용여부에 따른 경화된 아밀감에 대한 광중합 GIC의 전단결합강도를 측정하고 경계부의 파절양상을 관찰한 결과,다음과 같은 결론을 얻었다. 1.아밀감에 대한 광중합형 GIC의 전단강도는 Fuji Ⅱ LC,Vitremer,Vitrebond의 순으로 높게 나타났다.(P<0.05). 2.중간결합체인 Scotchbond를 사용하지 않은 경우에서 Scotchbond를 사용한 경우에 비해 전단결합강도가 높게 나타났다.(P<0.05). 3.결합파절면은 Scotchbond를 사용한 경우의 대부분에서 Scotchbond와 아밀감의 경계부에서 시편의 탈락이 나타났다.아밀감과 광중합 GIC의 결합을 시도할 경우에는 Scotchbond는 사용하지 않는 것이 바람직할 것으로 사료되었다. The purpose of this study was to asses the shear bond strengths of 3 types of light curing Glass Inomer cement to dental amalgam with or without an intermediary agent. 60 amalgam adherent specimens were prepared and aged in water at 37℃ for 3 days.Before bonding,the amalgam surfaces were finished flat on 600-grit silicon carbide paper.30 specimens among 60 were used for bonding in this condition,and the other 30 were covered with a thin layer of light-curing intermediary agent. Shear bond strengths were measured with universal machine (Instron,Model 43011) and statistically processed by ANOVA and t-test.On complition of bond test,the fracture surfaces were examined under light microscope so that the model of bond failure could be assessd. The results were as follows: 1.Bond strength of Fuji Ⅱ LC group showed the hightest value and was followed by Vitremer,Vitrebond groups(P<0.05). 2.The bond strengths achived without an intermediary agent were higher than those obtained with intermediary agent(P<0.05). 3.For the specimens bonded with intermediary agent,bond failures occured mostly as the agent-amalgam interface.So,the use of intermediary bonding agent was thought not recommendable at glass inomer-amalgam interface.