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밭미나리 발효액의 항산화 활성과 흰쥐에서 알코올성 간 손상 보호효과
심현지 ( Hyun Ji Sim ),김세미 ( Se Mi Kim ),전영주 ( Young Joo Jeon ),이영은 ( Young Eun Lee ) 한국식생활문화학회 2015 韓國食生活文化學會誌 Vol.30 No.1
Antioxidant activity of dropwort fermented extract (DFE) was measured according to fermentation period, and liver protective effects were examined using Sprague-Dawley rats. Total polyphenol and flavonoid contents as well as DPPH and ABTS radical scavenging activities increased up to 60~80 days and then decreased slightly. Proper fermentation time for DFE was more than 60 days and less than 80 days. Administration of alcohol to rats for 10 days at 10 mL/kg/day raised serum AST, ALT, total cholesterol, and triglyceride (TG) levels, which were then lowered by DFE and sugar liquid with the same soluble solids. While sugar liquid increased the blood lipid profile, especially TG levels, DFE had no effect due to its antioxidant activity. When TBARS content of the DFE group in liver tissue significantly decreased in a concentrationdependent manner compared to that of the ALH group (p<0.05). Liver damage was recovered by DFE treatment and was confirmed by hamatoxylin-eosin staining. These results suggest that DFE has a protective effect against alcohol-induced hepatotoxicity in SD rats.
밭미나리 발효액의 항산화 활성과 흰쥐에서 알코올성 간 손상 보호효과
심현지,김세미,전영주,이영은 한국식생활문화학회 2015 韓國食生活文化學會誌 Vol.30 No.1
Antioxidant activity of dropwort fermented extract (DFE) was measured according to fermentation period, and liverprotective effects were examined using Sprague-Dawley rats. Total polyphenol and flavonoid contents as well as DPPH andABTS radical scavenging activities increased up to 60~80 days and then decreased slightly. Proper fermentation time forDFE was more than 60 days and less than 80 days. Administration of alcohol to rats for 10 days at 10mL/kg/day raisedserum AST, ALT, total cholesterol, and triglyceride (TG) levels, which were then lowered by DFE and sugar liquid with thesame soluble solids. While sugar liquid increased the blood lipid profile, especially TG levels, DFE had no effect due to itsantioxidant activity. When TBARS content of the DFE group in liver tissue significantly decreased in a concentration-dependent manner compared to that of the ALH group (p<0.05). Liver damage was recovered by DFE treatment and wasconfirmed by hamatoxylin-eosin staining. These results suggest that DFE has a protective effect against alcohol-inducedhepatotoxicity in SD rats.
LPS에 의해 활성화된 RAW264.7 대식세포에서 수삼깍두기의 항염증 효과
김세미,전영주,심현지,이영은 한국식생활문화학회 2015 韓國食生活文化學會誌 Vol.30 No.2
This study was conducted to investigate the bioconversion of ginsenosides as well as anti-inflammatory activities of fresh ginseng Kkakdugi during fermentation. Fresh ginseng Kkakdugi reached proper ripeness, pH 4.30, and acidity 1.69% at 15oC after 10 days. Lactic acid bacteria grew until reaching 1.10×109 CFU/mL after 20 days of fermentation, and β- glucosidase activity increased from 1.154 to 1.885 units/g. The bioconversion of ginsenosides was confirmed based on increased content of Rg3, an aglycone, from 0.13 to 0.17 mg/g during fermentation through HPLC. Fresh ginseng Kkakdugi did not display cytotoxicity up to the concentrations of 80 μg/mL, regardless of ripening period. Nitrite production and expression of inflammation-related proteins, iNOS and COX-2, decreased in a dose-dependent manner regardless of ripening period. From these results, fresh ginseng Kkakdugi showed the bioconversion of ginsenosides to aglycone during the lactic acid fermentation as well as an anti-inflammatory effect through the reduction of NO production and iNOS and COX-2 expression
LED 가로등과 나트륨, CDM 가로등과의 곤충 유인률 비교・분석
이희조,주영돈,박보선,심현지,장지혜,송희중,배양섭 한국응용곤충학회 2012 한국응용곤충학회 학술대회논문집 Vol.2012 No.10
야간에 가로등에 유인되는 동물류 중에 가장 잘 알려진 것이 바로 곤충이다. 유인된 곤충은 대부분 그대로 죽게 되고, 생태계 내에서 1차 또는 2차 소비자의 역할을 하는 곤충의 개체군 감소로 인한 생태계 피해는 매우 심각하다고 할 수 있다. 본 연구를 통해 가로등별 곤충 유인률을 알아내고, 서로 비교・분석하여 가로등별 주변 생태계에 미치는 영향을 알아보고자 한다. 조사는 2012년 8월 LED가로등이 설치되어 있는 충북제천과 경기도 과천에서 2회 반복 실험을 하였다. 실험방법은 약 7-8m의 가로등 기둥 3m지점에 곤충유인용 자외선 트랩을 설치하여 일몰 후 1시간부터 2시간 정량채집 후 회수하였고, 그 이후로 다시 2시간을 정량채집을 하였다. LED 가로등 5대와 나트륨등 5대, 그리고 다시 LED 가로등 5대와 CDM등 5대를 비교 실험하였다. 자외선 트랩으로 정량채집한 곤충을 실험실로 운반 후 종수 및 개체수로 계수하고, 40℃에서 48시간 동안 건조시킨 후 건중량을 측정하였다. 실험결과 LED등과 나트륨등 비교 1회 실험에서 5대의 LED 가로등의 유인률 평균은 52.2종, 201.4개체, 0.1962g이며, 나트륨등 5대의 유인률 평균은 60.4종, 337개체, 0.3834이다. 2회 실험에서 5대의 LED 가로등의 유인률 평균은 27.4종, 77.8개체, 0.088이며, 나트륨등 5대의 유인률 평균은 33.4종, 114.6개체, 0.1236g이다. LED등과 CDM등의 비교 1회 실험에서 LED등 5대의 유인률 평균은 35.8종, 107.2개체, 0.0576g이며, CDM등 5대의 유인률 평균은 44.4종, 111.2개체, 0.1142g이다. 2회 실험에서 LED등 5대의 유인률 평균은 58.6종, 131.8개체, 0.0716g이며, CDM등 5대의 유인률 평균은 55.8종, 129.6개체, 0.1438g이다.