산지별 고려엉겅퀴의 Pectolinarin 함량 및 항산화 활성

조봉연,이진하,라문진,김선영,강일준,한경찬,이옥환 한국식품위생안전성학회 2016 한국식품위생안전성학회지 Vol.31 No.3

This study was performed to provide basic data of Cirsium setidens Nakai by cultivars that will be applied for development of functional foods and ingredients. We assessed pectiolinarin content, total flavonoids content and antioxidant effects (DPPH radical scavenging activity and ORAC assay) of C. setidens Nakai. Our results showed that the pectolinarin and total flavonoids contents of C. setidens Nakai by cultivars ranged from 3.95±0.05 to 7.29±0.07 mg/g and from 40.42±0.91 to 76.70±2.24 mg pectolinarin equivalent (PNE)/g, respectively. Among C. setidens Nakai by cultivars, the pectolinarin content was highest in GW-D extract. Futhermore, the DPPH radical scavenging activity of C. setidens Nakai ranged from 31.25 to 81.93%, respectively. The oxygen radical absorbance capacity (ORAC) value was highest in GW-D and GW-E extracts (514.49 and 501.73 μM TE/g, respectively). These results suggest that C. setidens Nakai extract could be considered as a good sources of natural antioxidants and functional food ingredients.

제 5 회 학술발표회 및 세미나 / 보고 및 논문 : 호기성 생물막여과지 ( 폭기여과지 ) 의한 철의 제거

조봉연,등전현이 대한상하수도학회 1991 학술발표회 및 세미나 Vol.1991 No.-

Manganese removal using an aerated granular filter

조봉연 한국화학공학회 2007 Korean Journal of Chemical Engineering Vol.24 No.5

on manganese removal using an aerated granular filter with mean particle size of 3.68 m1. Air, with a rate of 0 to 366 m d1, was supliedthrough nozzles positioned 100 m above the filter column bottom. From the experiments that were conducted, it wasfound that manganese removal is completed at a pH of 9.6 or above. In addition, the oxidation and removal rate ofdissolved manganese were expressed as a first-order reaction. The smaller the filter media particles were, the higherthe manganese removal efficiency was. The aeration rate of dissolved oxygen in raw water is sufficient for the man-ganese removal process. The manganese removal rate increased with time due to the catalytic effect of manganese di-oxide (MnO2) attached to the media. The x-ray difraction analysis showed that the solids attached to the filter mediawere not crystalline but amorphous manganese.

막분리를 이용한 수도원수의 고도처리에 관한 연구

조봉연 대한상하수도학회 1993 상하수도학회지 Vol.7 No.2

Constant rate permeat experiments using polyethylene hollow fiber membranes were conducted in order to treat dam water for potable purposes. The experiments consisted of two series. One series consisted of six bench scale apparatuses, each having a 0.4㎡ nominal permeat area, which were applied in determining the optimum operating conditions. The other series was comprised of two pilot scale plant, each having a 40㎡ nominal permeat area. Both series were operated for six months. Coagulant was not used in any of the experiments. To suppress an increase in differential pressure between the inlet and outlet of the membrane, a hydrophilic membrane was found to be better than a hydrophobic membrane. Also, permeat flux should not be more than 0.03m/h, and air bubbling-washing for 1 minute should be conducted at 180 minutes intervals or less.

수중의 철 제거 시 생기는 산화철의 결정구조에 관한 연구

조봉연(Cho Bong-Yeon) 대한토목학회 2006 대한토목학회논문집 B Vol.26 No.1B

The samples collected from two reactors are analyzed by X-ray diffraction and M?ssbauer spectroscopy in this study. It is concluded that the iron oxide crystal attached on anthracite media which possesses catalytic ability is identified to be Ferrihydrite, regardless of the value of pH from the analysis of the iron oxide. Iron oxide in Batch reactor is identified to be Microcrystalline goethite. 2종류의 제철 반응조에 있어서, 각종의 반응조건 하에 생성한 산화철을 x-ray회절과 M?ssbauer spectroscopy실험으로 철 산화 물질을 동정한 결과, 여재 표면에 부착한 철 산화물의 결정은 pH 조건에 관계없이 Ferrihydrite(Fe?HO?ㆍ4H₂O)이었으며, Batch(회분) 실험에서 생긴 철 산화 물질은 가수분해에 의해 생긴 것으로, Microcrystalline Goethite 이었다.

행정혁신 우수사례 1 : 민원인 친화형 토지 종합민원 창구: "말 한마디로 서류 뗀다" -서울시 마포구 사례-

조봉연 대한지방행정공제회 2006 地方行政 Vol.55 No.627

공장 및 수공업 생산 찐빵의 품질특성

조봉연 ( B. Y. Cho ),최승현 ( S. H. Choi ),김태선 ( T. S. Kim ),박영은 ( Y. E. Park ),김재민 ( J. M. Kim ),최선일 ( S. I. Choi ),정태동 ( T. D. Jung ),오지원 ( J. W. Oh ),이진하 ( J. H. Lee ),홍종민 ( J. M. Hong ),이옥환 ( O. H. Lee 강원대학교 농업생명과학연구원(구 농업과학연구소) 2016 강원 농업생명환경연구 Vol.28 No.1

본 연구에서는 현대식 대량제조 방식의 공장 생산 찐빵과 소규모 업체에서의 손찐빵의 품질특성을 평가하고자 texture analyzer를 이용한 조직감, 주사 전자현미경 관찰 및 관능검사를 실시하였다. 분석에 사용된 시료는 팥찐빵, 단호박찐빵, 흑미찐빵으로 각각 공장 생산 찐빵과 수공업 생산 찐빵으로 구분하여 사용하였다. 점착성과 응집성에서 수공업 생산 방식으로 제조한 찐빵이 공장 생산 방식으로 제조한 찐빵에 비해 높은 값을 나타내었다. 경도에서는 공장 생산 방식으로 제조한 찐빵이 수공업 생산 방식으로 제조한 찐빵에 비해 높은 값을 나타내었다. 주사 전자현미경 관찰 결과에서는 수공업 생산 방식으로 제조한 찐빵이 공장 생산 방식으로 제조한 찐빵보다 기공의 크기가 큰 것으로 나타났다. 관능검사에서는 풍미(먹음직스러움) 항목과, 전반적인 기호도 항목에서 수공업 생산 방식으로 제조한 찐빵이 공장 생산 방식으로 제조한 찐빵보다 높은 점수를 나타내었다. 본 연구의 결과는 향후 찐빵 제품의 품질 향상과 개발에 필요한 기초자료로 활용될 것으로 사료된다. This study was to investigate the quality characteristics of factory-style and handmade-style steamed bread products using texture analyzer, scanning electron microscope (SEM) and organoleptic evaluation. Our results showed that the handmade-style steamed bread were higher in adhesiveness and cohesiveness than those of factory-style steamed bread but hardness was lower. According to the SEM, many equally distributed large holes were present on the handmade-style steamed bread surface. In the organoleptic characteristics, flavor (taste) and overall experience of handmade-style steamed bread evaluated higher than those of factory-style steamed bread. This study was to provide basic data on quality characteristics of steamed bread that will be useful for the improving quality and developing steamed bread.

수확시기별 고려엉겅퀴 주정추출물의 항산화 및 항비만 활성 비교

조봉연,이진하,최선일,정태동,최승현,라문진,김선영,강일준,한경찬,이옥환 한국식품위생안전성학회 2017 한국식품위생안전성학회지 Vol.32 No.3

This study was conducted to provide basic data of Cirsium setidens Nakai in different harvest time that will be applied for development of functional foods and ingredients. We investigated pectiolinarin and pectolinarigenin content, total flavonoids content and antioxidant effects (DPPH radical scavenging activity and ORAC assay) of C. setidens Nakai. Our results showed that the pectolinarin and total flavonoids contents of C. setidens Nakai in harvesting time ranged from 43.13 ± 0.22 to 95.65 ± 0.34 mg/g and from 32.81 ± 1.68 to 40.43 ± 0.35 mg rutin equivalent (RE)/g, respectively. The DPPH radical scavenging activity of C. setidens Nakai did not show differences in harvesting time. The oxygen radical absorbance capacity (ORAC) value was highest in August (2016) extracts (827.72 μmole TE/g). In addition, C. setidens Nakai exthanolic extract in harvesting time did not show any cytotoxicity up to 200 μg/mL. During adipocyte differentiation, C. setidens Nakai extract in harvesting time significantly inhibited lipid accumulation and ROS production, compared with the controls. These results suggest that C. setidens Nakai extract could be considered as a non-toxic natural resources of functional food ingredients and natural antioxidants.

고려엉겅퀴 주정 추출물을 함유하는 임상시험제품의 항비만 활성 평가

조봉연,최선일,최승현,심완섭,Han Xionggao,라문진,김선영,강일준,한경찬,이옥환 한국식품위생안전성학회 2018 한국식품위생안전성학회지 Vol.33 No.5

본 연구는 고려엉겅퀴 주정추출물을 가지고 제작된 임 상시험용제품(CNTM)이 3T3-L1 지방세포 및 고지방식이 로 유도된 비만 쥐에 미치는 항비만 효능 관찰을 통하여 체지방 개선 기능성식품을 개발하기위하여 인체적용시험 시료를 제작한 후, 인체적용시험전에 그 효력이 유지됨을 확인하기위해 수행되었다. 본 연구에 사용된 시료 CNTM 은 80~320 μg/mL 농도에서 세포독성이 관찰되지 않았 며, 지방 축적억제 효능 및 지방세포 분화, 지질대사 관련 유전인자들을 유의적으로 변화시키는 것으로 확인되었다. 또한 동물실험에서 CNTM 처리에 의하여 체중의 감소를 확인하였으며 혈중지질 성분 가운데 HDL-C/TC의 비율은 유의적으로 증가하며 LDL-cholesterol (LDL-C)과 nonesterified fatty acid (NEFA)의 비율은 유의적으로 감소하 여 혈중 유리지방산 농도를 감소시키며 혈중 콜레스테롤 상승을 억제시키고 혈당을 감소시키는 효과가 있는 것으로 평가되었다. 따라서 고려엉겅퀴 주정추출물이 함유된 인체적용시험시료(CNTM)는 체지방 개선에 우수한 효과가 있는 것으로 확인되었다. The purpose of this study was to evaluate anti-obesity activity of Cirsium setidens Nakai test material (CNTM) in 3T3-L1 adipocytes and obese C57BL/6J mice fed with a high-fat diet using various obesity-related in vitro experiments. During adipocyte differentiation, CNTM significantly inhibited lipid accumulation and ROS production compared to controls. To evaluate whether CNTM could exert glycerol release effects on mature 3T3-L1 adipocytes, we treated cells with various concentrations of CNTM for 1 h. Treatment of mature adipocytes with 160-320 μg/mL of CNTM increased the release of glycerol, but not in a significant dose-dependent manner. Anti-adipogenic and anti-lipogenic effects of CNTM seemed to be mediated by the inhibition of PPARγ and C/EBPα. Moreover, CNTM stimulated fatty acid oxidation in an AMPK-dependent manner. CNTM-treated groups of C57BL/6J mice showed reduced body weights and adipose tissue weight with improving serum lipid profiles and adiponectin protein expression in obese C57BL/6J mice fed with a high-fat diet. These results suggest that CNTM might have anti-obesity effect on adipogenesis and lipid metabolism in vitro and in vivo. This presents the possibility of developing a treatment for obesity using nontoxic natural resources.

제1주제 : 남북한 철도ㆍ도로연결과 대북 경협 및 인도지원 물자수송

조봉연 남북물류포럼 2004 남북물류포럼 학술대회 자료집 Vol.- No.-