http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Park, Sook-Jahr,Park, Kyung-Ah,Park, Cjerl-Woo,Park, Won-Seck,Kim, Jeong-Ok,Ha, Yeong-Lae The Korean Society of Food Science and Nutrition 1996 Preventive Nutrition and Food Science Vol.1 No.2
Molecular weight and partial amino acid sequence of the cis, 9-cis, 12-octadecadienoate isomerase(linoleate isomerase) of Butyrivibrio fibrisovens A-38 were determined. Linoleate isomerase was isolated from the bac-teria cultured anaerobically and purified by ultracentrifugation in conjunction with Sepharose 6B column chro-matography, Phenyl sepharose 4B column chromatography and fast performance liquid chromatography (EPLC). The isomerase was single polypeptide with 19KD of molecular weight, when determined by SDS-PAGE. Fourteen amino acids sequence of N-terminal of the linoleate isomerase was N-GEIDKYPRIIKQQ determined by Edman method.
Synthesis of Triglyceride of Conjugated Linoleic Acid (CLA) by Lipozyme
Won-Seck Park,Seck-Jong Kim,Kyung-Ah Park,Jeong-Ok Kim,Eun-Joo Lee,Dong-Gil Lim,Yeong-Lae Ha 한국식품영양과학회 2000 Preventive Nutrition and Food Science Vol.5 No.2
Most fatty acids in food matrices are triglyceride (TG) forms. Conjugated linoleic acid (CLA) produced from linoleic acid by microorganisms or chemicals is a free form. To apply the CLA to food systems, the TG containing CLA (designate CLA-TG) was synthesized by Lipozyme-catalyzed esterification method. An optimum reaction condition for the esterification of free CLA (FCLA) to glycerol by Lipozyme was determined as follows; Lipozyme (50 mg) effectively catalyzed the esterification of CLA (500 mg) to glycerol (1150 mg) dissolved in isooctane (3 ml) in a shaking incubator (200 rpm, 50℃) for 48 hr. Under the reaction condition, the resultant contained 52.4% CLATG as well as 31.1% Di-CLA-glycerol (CLA-DG), 7.6% mono-CLA-glycerol (CLA-MG), and 9.0% other CLA (unreacted FCLA plus CLA dimer). These results suggest that the Lipozyme could be a useful enzyme for the production of CLA-TG to be employed in foods.
Synthesis of Triglyceride of Conjugated Linoleic Acid(CLA) by Lipozyme
Park, Won-Seck,Kim, Seck-Jong,Park, Kyung-Ah,Kim, Jeong-Ok,Lee, Eun-Joo,Lim, Dong-Gil,Ha, Yeong-Lae The Korean Society of Food Science and Nutrition 2000 Preventive Nutrition and Food Science Vol.5 No.2
Most fatty acids in food matrices are triglyceride(TG) forms. Conjugated linoleic acid(CLA) produced from linoleic acid by microorganisms or chemicals is a free form. To apply the CLA to food systems, the TG containing CLA(designate CLA-TG) was synthesized by Lipozyme-catalyzed esterification method. An optimum reaction con-dition for the esterification of free CLA(FCLA) to glycerol by Lipozyme was determined as follows; Lipozyme(50mg) effectively catalyzed the esterification of CLA(500mg) to glycerol(1150mg) dissolved in isooctane (3ml) in a shaking incubator (200 rpm, 5$0^{\circ}C$) for 48 hr. Under the reaction condition, the resultant contained 52.4% CLA-TG as well as 31.1% Di-CLA-glycerol(CLA-DG), 7.6% mono-CLA-glycerol(CLA-MG), and 9.0% other CLA(un-reacted FCLA plus CLA dimer). These results suggest that the Lipozyme could be a useful enzyme for the production of CLA-TG to be employed in foods.
뽕나무가루 첨가 배지에서 배양한 버섯균사체 배양물의 자유라디칼 유도 산화 억제
김석종(Seck-Jong Kim),임동길(Dong-Kil Lim),박철우(Cherl-Woo Park),세르보로다메(Rhoda Mae Cerbo),형석원(Seok-Won Hyung),이강권(Kang-Kweon Lee),김정옥(Jeong-Ok Kim),하영래(Yeong-Lae Ha) 한국식품영양과학회 2004 한국식품영양과학회지 Vol.33 No.2
뽕나무가루 첨가 배지에서 배양한 느타리버섯균사체 배양물의 조추출물이 자유라다칼로 유도한 linloeic acid의 산화를 대조구에 비해 75.9% 감소시켰고, mouse liver microsome 산화에서도 NADPH/Fe^(++) system에서 64.3% 감소시켰다. 이와 같은 효과는 조추출물로부터 용매분획한 분획물의 단독 효과보다 우수하였다. 상황 및 동충하초버섯균사체 배양물의 조추출물도 느타리버섯균사체 배양물의 조추출물과 효과가 유사하였지만 다소 낮았다. Antioxidant activity of extracts from the submerged-liquid culture of mushrooms was measured using two systems: linoleic acid and mouse liver microsomes induced by various free radical sources. Mushrooms of Pleurotus ostreatus (Neutari), Phellinus linteus (Sanghwang), Paecilomyces japonicus (Dongchunghacho), Hericicum erinacium (Norugungdengyee) and Agaricus blazei (Shinryeong) in 1% mulberry tree powder-supplemented medium were incubated in a shaking incubator (200 rpm, 25℃) for 3 days. Hot water extracts of mycelial cultures were freeze-dried, followed by fractioning with hexane, chloroform, ethylacetate, and butanol in the order. Antioxidant activity of each sample was examined in free radical-induced linoleic acid oxidation in phosphate-buffered saline (PBS) solution by measuring the amount of malonaldehyde (MA), and mouse liver microsomal systems by measuring the amount of thiobarbituric acid reactive substances (TBARS). In linoleic acid oxidation system, hot water extracts from the cultures of Pleurotus ostreatus, Phellinus linteus, and Paecilomyces japonicus exhibited stronger antioxidant activity than aqueous or butanol fraction and the combined fraction of hexane, chloroform and ethylacetate, but the hot water extract from Pleurotus ostreatus culture was the strongest activity. The antioxidant activity of the hot water extract from Pleurotus ostreatus culture was stronger than any other fractions in mouse microsomal system. These results suggest that hot water extract of Pleurotus ostreatus culture, and the cultures of Phellinus linteus and Paecilomyces japonicus could be useful for functional materials to reduce the oxidation of lipids in food systems induced by free radicals.
Conjugated Linoleic Acid (CLA) Glycerol 유도체의 화학적 합성
박원석(Won-Seck Park),김석종(Seck-Jong Kim),박숙자(Sook-Jahr Park),김정옥(Jeong-Ok Kim),임동길(Dong-Gil Lim),하영래(Yeong-Lae Ha) 한국식품영양과학회 2000 한국식품영양과학회지 Vol.29 No.3
CLA의 glycerol 유도체를 화학적으로 합성하였다. CLA-Cl(1.79 mmole), glycerol(0.6 mmole)과 pyridine(1.3 mL)를 25C에서 8시간 반응시켰다. 이 반응물을 SGCC와 TLC를 이용하여 CLA의 glycerol 유도체를 분리하고, ¹H-NMR, ¹³C-NMR, IR, MS를 이용하여 분리된 유도체를 동정하였다. 이 실험조건하에서 사용된 CLA의 59.4%가 CLA의 glycerol 유도체(CLA-TG, CLA-DG, CLAMG)로 전환되었다. CLA의 glycerol 유도체 중 CLA-TG는 52.1%, CLA-DG는 17.0%, CLA-MG는 30.9%였다. Conjugated linoleic a cid (CLA) is a potent anticarcinogen for several animal models. CLA was synthesized by alkaline isomerization of linoleic acid. Derivatives of CLA with glycerol were synthesized by chemical methods to use as food additives. Chemically-synthesized CLA-chloride (CLA-Cl, 1.79 mmole), glycerol (0.6 mmole) and pyridine (1.3 ml) were reacted at 25℃ for 8 hrs. The resultant was fractionated by silica gel column chromatography (SGCC) and thin layer chromatography (TLC). The fractions were identified using infrared spectroscopy (IR), nuclear magnetic resonance spectroscopy (NMR), and mass spectrometry (MS). Amount of CLA converted to CLA-glycerol derivatives was 59.4% and the rest of CLA was remained as unreacted CLA or CLA dimer. The composition of the CLA-glycerol derivatives was 52.1% tri-CLA- glycerol (CLA-TG), 17.0% di-CLA-glycerol (CLA-DG) and 30.9% mono-CLA-glycerol (CLA-MG). These results suggest that the chemical synthesis of CLA-glycerol derivatives produces CLA-TG, CLA- DG and CLA-MG as well as CLA dimer.
Sook-Jahr Park,Kyung-Ah Park,Cherl-Woo Park,Won-Seck Park,Jeong-Ok Kim,Yeong-Lae Ha 한국식품영양과학회 1996 Preventive Nutrition and Food Science Vol.1 No.2
Molecular weight and partial amino acid sequence of the cis,9-cis,12-octadecadienoate isomerase(linoleate isomerase) of Butyrivibrio fibrisolvens A-38 were determined. Linoleate isomerase was isolated from the bacteria cultured anaerobically and purified by ultracentrifugation in conjunction with Sepharose 6B column chromatography, Phenyl sepharose 4B column chromatography and fast performance liquid chromatography(FPLC). The isomerase was a single polypeptide with 19KD of molecular weight, when determined by SDS-PAGE. Fourteen amino acids sequence of N-terminal of the linoleate isomerase was N-GEIDKYPRRIIKQQ determined by Edman method.
Astaxanthin처리 산란계로부터 생산된 난황이 Mouse의 마크로파지 활성과 응집소가 및 용혈소가에 미치는 영향
김홍출(Hong-Chul Kim),박숙자(Sook-Jahr Park),김정곤(Jeong-Kon Kim),김영림(Young-Rim Kim),박원석(Won-Seck Park),조용운(Yong-Un Cho),조현종(Hyeon-Jong Cho),김정환(Jeong-Hwan Kim),하영래(Yeong-Lae Ha) 한국식품영양과학회 2001 한국식품영양과학회지 Vol.30 No.6
마크로파지의 활성을 조사하기 위해 carbon clearance time을 조사한 결과 AEY 처리구가 control이나 CEY 처리구에 비해 짧았다. 특히 AEY 500 μg 처리에서 carbon clearance 시간이 5분으로 control에서 9.42분, CEY(250 μg 처리)에서 9.01분보다 유의성있는 감소를 보였다. AEY 처리에 의해 응집소가와 용혈소가가 다소 증가되었다. SRBC 처리 1일째와 3일째에 250 μg 처리구를 비교해 보면, control, CEY, AEY의 응집소가는 각각 5.50, 5.63, 6.00 및 5.25, 5.38, 5.50로 용혈소가는 각각 4.75, 5.38, 5.50 및 4.25, 5.63, 5.63으로 AEY 처리구가 control, CEY 처리구에 비해 면역 활성이 있었지만 유의성은 없었다. Effect of the egg yolks from laying hens intubated, p.o., astaxanthin (designated AEY) on mouse humoral immunity was investigated using male ICR mouse (6~7 weeks of age). Mice were adapted in a temperature- and humidity-controlled house for one week and randomly divided into 5 treatment groups (9 mice/cage/treatment). Mice were intubated p.o., AEY (100, 250 and 500 μg) or control egg yolks (CEY, 250 μg), dissolved in 0.1 mL DMSO, for consecutive 4 days. At day 5, carbon suspension (pilot drawing ink 3 mL+3% gelatine 3 mL) was injected 3 μL per 1 g body weight through tail vein. Carbon clearance time was measured at 5 and 35 minutes post the injection of carbon suspension. Another two experiments were conducted to determine the hemagglutinin-titer (HGT) and hemolysin-titer (HLT) with male ICR mouse (8 mice/cage/treatment). Mice treated with AEY were induced immune activity with SRBC. HGT and HLT were measured from the blood at day 1 and 3 after treatment of SRBC. AEY treatment reduced the carbon clearance time. Especially the carbon clearance time by 500 μg AEY treatment was 5.00 minutes, which was very short time compared with 9.42 minutes by control and 9.01 minutes by CEY. AEY group showed slightly higher values of HGT and HLT than CEY group and control. At day 1, HGT in control, 250 μg CEY and 250 μg AEY groups was 5.50, 5.63, and 6.00, respectively. Similarly, HLT in control, 250 μg CEY and 250 μg AEY groups was 4.75, 5.38, and 5.50, respectively, at day 1. These results suggest that AEY exhibited immunity-enhancing effect.
곡형 콘크리트 충진 강관기둥 부재의 횡방향 저항성능 평가
정영수(Jeong Young Soo),박무수(Park Moo Su),최형석(Choi Hyung Seck),안진희(Ahn Jin Hee),이원홍(Lee Won Hong) 한국방재학회 2017 한국방재학회논문집 Vol.17 No.2
콘크리트 충진 강관부재들은 교량의 교각이나 건축물의 기둥으로 사용되고 있다. 콘크리트 충진 강관부재를 다양한 구조물에 효율적으로 적용하기 위해서는 구조물에 작용하는 하중위치 거동 특성 등을 고려하여야 구조적 장점을 충분히 활용할 수 있다. 절개지 및 사면에 사용되고 있는 낙석방지 울타리의 주기둥은 수평방향으로 작용하게 되는 외력에 저항하여야 하는 안전시설이다. 이러한 낙석방지 울타리의 주기둥을 콘크리트 충진 곡형강관으로 적용하여 하중에 저항하는 단면성능을 확인하고 작용하중에 대한 하중저항성능을 확인하기 위하여 강관 두께, 충진 콘크리트 강도 및 충진높이 변화와 작용방향 및 하중높이 등을 변화하여 콘크리트 충진강관 기둥부재의 하중저항 성능 변화를 구조해석프로그램을 이용하여 비교하였다. 또한 기존 낙석방지 주기둥의 성능도 함께 비교하여 성능변화를 비교하였다. Concrete-Filled tube structures(CFT) have been widely installed in structural system as the bridge pier and column of buildings. The CFT member on various structure has been effectively utilized to consider the structural behavior and loading condition. The rockfall protection fence was installed to prevent rockfall from cut slopes and resisted by lateral loading. In this study, FE analyses were conducted to examine the sectional performance and load-resistant performance of curved concrete filled circular steel column by applied lateral load. FE model was considered in thickness of curvature circular steel column, compressive strength of concrete, filled height of concrete, loading direction and loading location. Additionally, their structural performances were compared to those of an installed rockfall protection fence as H-beam.