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지윤정(Yun-Jeong Ji),이은영(Eun Young Lee),이지연(Ji Yeon Lee),서경혜(Kyung Hye Seo),김동휘(Dong Hwi Kim),박춘군(Chun Geon Park),김형돈(Hyung Don Kim) 한국영양학회 2020 Journal of Nutrition and Health Vol.53 No.3
본 연구는 선씀바귀의 항산화 및 탄수화물 소화효소 억제 효과를 평가하여 제 2형 당뇨환자에게 중요한 항산화제 및 혈당 상승 억제제로서의 가능성을 타진하고자 하였다. 선씀바귀 추출물의 총 폴리페놀, 플라보노이드 함량과 in vitro 항산화 활성 및 소화효소 저해 활성을 조사한 결과 ISE가 ISW보다 총페놀과 플라보노이드 함량이 높았고 항산화 활성 및 소화효소 저해 활성 또한 높았다. ISE의 계통분획물 중에 에틸아세테이트 분획물과 부탄올 분획물의 소화효소 저해 활성이 가장 우수하고, 추출물의 항산화활성과 탄수화물 소화효소 억제효과가 총 페놀 및 플라보노이드함량과 높은 상관성을 가지는 것으로 볼 때, ISW에 비해 상대적으로 높은 ISE의 항산화 및 소화효소 저해 활성은 페놀 화합물, 특히 플라보노이드 화합물 때문임을 알 수 있었다. 따라서 ISE와 에틸아세테이트 그리고 부탄올 분획물은 우수한 항당뇨 기능성 소재라고 판단된다. Purpose: Ixeris strigosa (IS) is a perennial plant that commonly grows in meadows. The leaves and roots of IS have been used in medicine as a sedative. This study evaluated the antioxidant and carbohydrate-digestive-enzyme inhibitory effects of IS to determine its potential as an essential antioxidant and glycemic inhibitor for type 2 diabetics. Methods: The antioxidative and α-amylase and α-glucosidase inhibitory activities were examined using the water extracts (ISW), ethanol extracts (ISE), and solvent fractions from IS. The antioxidative activities were measured using in vitro methods by measuring the 1,1-diphenyl-2-picrylhydrazyl and 2,2′-azino-bis-3-ethylbenzothiazoline-6-sulfonic acid radical scavenging activity. Results: Investigations of the total polyphenol, flavonoid content, in vitro antioxidant activity, and α-amylase and α-glucosidase inhibitory activities of the IS extract showed that the ISE had higher total phenolic and flavonoid contents than the ISW, as well as high antioxidant activity. The ethanolic extracts of IS (70%) had an α-amylase inhibitory activity of 78.55%. The ethyl acetate fraction (90.56%) showed higher α-glucosidase inhibitory activity than the positive control, acarbose (83.01%). Conclusion: Among the ISE fractions, the ethyl acetate and butanol fractions showed the best digestive enzyme inhibitory activity. Moreover, the antioxidant activity of the extract and the carbohydrate, α-amylase, and α-glucosidase inhibitory effects showed a stronger correlation with the total phenol and flavonoid contents compared to the ISW. As a result, the antioxidant and digestive enzyme inhibitory activities of high ISE are due to the phenolic compounds, particularly the flavonoid compounds. Therefore, ethyl acetate and butanol fractions of the 70% ethanol extract are excellent anti-diabetic functional materials.
일부 시판 생막걸리 제품의 저장기간에 따른 품질 특성 변화
지윤정 ( Yun Jeong Ji ),정해정 ( Hai Jung Chung ) 한국식생활문화학회 2012 韓國食生活文化學會誌 Vol.27 No.4
This study was conducted to investigate the physicochemical and sensory changes of 6 kinds of commercial Makgeolli (A, B, C, D, E, and F) during storage at 4±1oC for 30 days. The initial pH was 3.50~4.23, but it increased to 3.65~4.37 by the end of the storage period (p<0.05) There were no significant differences in titratable acidity between the beginning and end of the storage period. The reducing sugar content of A and B increased, whereas C, D, E, and F decreased with increasing storage time. A decrease in lightness (L values) was observed in all samples with increasing storage time (p<0.05). The alcohol content increased from beginning values of 5.90~6.10% to ending values of 6.30~7.35% at the end of storage, of which sample B exhibited the highest value. A sensory evaluation test revealed that the overall acceptability of samples A, B, D, and E were still within acceptable limits, but samples C and F showed undesirable changes during 30 days of storage at 4oC.
일부 해양경찰들의 구강보건경험 유무에 따른 구강보건지식수준과 구강보건교육 요구도
지윤정(Yun-Jeong Ji),윤현서(Hyun-Seo Yoon) 한국콘텐츠학회 2015 한국콘텐츠학회논문지 Vol.15 No.7
본 연구는 특수 직업군에 속하는 해양경찰을 대상으로 구강보건관련 지식수준을 파악하여 구강보건교육 프로그램을 계발하기 위한 기초자료를 제공하기 위하여 2013년 3월부터 9월까지 해양경찰관 499명을 대상으로 일반적 특성 8문항, 구강보건교육 경험여부, 일반적 구강보건지식 13문항, 치주관련 지식 6문항, 치아우식병 예방관련 지식 6문항, 구강보건교육 요구도 4문항을 조사한 결과 다음과 같은 결과를 얻었다. 연구대상 중 104명(22.8%)만이 구강보건교육 경험이 있었다. 교육을 받은 경우 일반적 지식수준에서는 턱관절 관련 문항에서 지식수준이 차이를 보였고(p=0.026), 치주건강지식에서는 차이를 보이지 않았으며, 예방관련지식에서는 불소에 관한 지식수준이 높게 나타났다. 구강보건교육 요구도에서는 구강보건 전문 인력이필요하다고 67.1%가 응답하였으며, 특히 구강보건교육을 받은 경험이 있는 경우 77.9% 응답하였다(p=0.004). 선호내용으로는 올바른 잇솔질, 구강상담, 구강위생용품사용, 세치제 선택법, 영양 및 금연교육의 순으로 나타났다. 이상의 결과에서 해양경찰과 같은 특수 직업군에 대한 구강보건교육 프로그램의 마련이 되어야 할 것이다. The purpose of this study was to examine the oral health knowledge of maritime police officers, whose job belonged to the cluster of special occupations, in an effort to provide some information on the development of oral health education programs. The subjects in this study were 499 maritime police officers. After a survey was conducted from March to September, 2013, its found that just 104 respondents(22.8%) had experience of receiving oral health education. In terms of general knowledge, the respondents who received that education were different from the others who didnt in the level of knowledge on the items related to temporomandibular joint(p=0.026), and there were no differences between the two in knowledge of periodontal health. As for prevention-related knowledge, they had a good knowledge of fluorine. Concerning needs for oral health education, 67.1 percent considered oral health professional manpower to be necessary, and 77.9 percent of the respondents who received oral health education gave this reply(p=0.004). Regarding preference for educational content, the right toothbrushing method was most preferred, followed by oral counseling, the use of oral hygiene supplies, the selection of dentifrice, and nutrition/anti-smoking education. The findings of the study suggest that the development of oral health education programs geared toward the cluster of special occupations such as maritime police is required.