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권광일(Kwang Il Kwon),박소현(So Hyun Park),이준형(Jun Hyung Lee),김지영(Jee Young Kim),유광수(Kwang Soo Yoo),이지선(Jee Sun Lee),김서영(Seo Young Kim),성현이(Hyun I Sung),남혜선(Hye Seon Nam),김종욱(Jong Wook Kim),이혜영(Hye Young Le 대한지역사회영양학회 2007 대한지역사회영양학회지 Vol.12 No.2
This study investigated the prevalence of nutrition labeling and claims on processed and packaged foods. The final database consists of 1,287 foods, which were collected in two supermarkets in the Seoul area from September to November, 2006. An estimated 78% of KFDA-regulated processed, and packaged foods have nutrition labels. Nutrient content claims on food labels were identified in 21% of the foods which have nutrition labels. The prevalence of nutrition labels in this study is much higher than in previous studies due to the current expansion of the mandatory labeling regulation. However, false labeling and misleading contents claims were also identified. The food label is an important tool for enhancing the public`s understanding of healthy choices of processed foods. Therefore, to maximize the benefits of the nutrition labeling regulation, industries, government agencies and health professionals should work together to help consumers make healthy dietary choices and improve their health. (Korean J Community Nutrition 12(2) : 206~213, 2007)
권광일,이선경,유성은,Kwon, Kwang-Il,Lee, Sun-Kyung,Yoo, Sung-Eun The Korean Society of Pharmacology 1991 대한약리학잡지 Vol.27 No.2
${\beta}-$수용체 효능약물 ((-)-NE), 길항약물 $((\pm)-propranolol,\;labetalol)$ 및 PDE 억제약물(imazodan, KR-30045, KR-30075 등)에 대한 ${\beta}-adrenoceptor$ binding 실험을 ${\beta}_1/{\beta}_2$ 비선택적 radioligand인 $(-)-[^3H]-DHA$를 사용하여 실시하였다. Saturation 실험에서 ${\beta}_1$ 및 ${\beta}_2$ 수용체를 모두 갖고 있는 rat 좌심실의 ${\beta}$ 수용체에 대한 $(-)-[^3H]-DHA$의 $K_d$ 값은 $1.5{\pm}0.43\;nM$, $B_{max}$는 $22.0{\pm}0.9\;fmol/mg$ protein이었다. $({\pm})propranolol$, labetalol 및 (-)NE는 단일상으로 $(-)-[^3H]-DHA$의 결합을 억제하였으며 Ki 값은 각각 $17.0{\pm}0.43\;nM$, $57.3{\pm}1.30\;nM$, $1.57{\pm}0.95\;{\mu}M$로 나타났다. 실험에 사용한 모든 PDE 억제약물들은 $(-)-[^3H]-DHA$ 결합을 $10^{-3}\;M$의 고농도에서도 10% 미만으로 억제했다. 실험결과, propraolol, labetalol 및 NE는 ${\beta}_1/{\beta}_2$ 수용체에 대해 비선택적인 약물로 나타났으며, imazodan 및 신합성 PDE 억제약물들은 rat 심근에 있는 ${\beta}-$수용체에 친화성이 거의 없음을 알 수 있었다. ${\beta}-Adrenoceptor$ binding study of ${\beta}-agonist$ ((-)NE), ${\beta}-antagonists$ $(({\pm})\;propranolol,\;labetalol)$ and PDE inhibitors (imazodan, KR-30045, KR-30075 etc.) was performed using $(-)-[^3H]-DHA$, as a $non-{\beta}_1/{\beta}_2$ selective radioligand. In saturation studies, $K_d$ and $B_{max}$ of $(-)-[^3H]-DHA$ to ${\beta}-adrenoceptors$ in rat left ventricle in which both ${\beta}_1$ and ${\beta}_2$ receptors coexist were determined to be $1.5{\pm}0.43\;nM$ and $22.0{\pm}0.9\;fmol/mg$ protein, respectively. $({\pm})Propranolol$, labetalol and (-)NE competed for $(-)-[^3H]-DHA$ binding sites in an essentialy monophasic manner with $Ki=17.0{\pm}0.40\;nM,\;57.3{\pm}1.30\;nM,\;and\;1.57{\pm}0.95\;{\mu}M$, respectively. All of PDE inhibitors inhibited the $(-)-[^3H]-DHA$ binding by only below 10% even at the high concentration of $10^{-3}M$. The present results suggest that propranolol, labetalol and NE are $non-{\beta}_1/{\beta}_2$ selective antagonists and agonist, respectively. Additionally, this study shows that imazodan and new synthesized PDE inhibitors may hardly have the affinities to ${\beta}-adrenoceptors$ in cardiac muscle.
재래식 간장의 한외여과시 공급액의 주입속도와 잔류액의 용량감소율이 간장의 투과유속, 미생물균체 및 성분저지율에 미치는 영향
권광일(Kwang-Il Kwon),이종구(Jong-Gu Lee),최종동(Jong-Dong Choi),정현채(Hyun-Chae Chung),임무혁(Moo-Hyeong Im),김기주(Ki-Ju Kim),김우성(Woo-Seong Kim),성준현(Jun-Hyun Sung),권오준(O-Jun Kwon),김영지(Young-Ji Kim),서정식(Chung-Sik Suh 한국식품과학회 2003 한국식품과학회지 Vol.35 No.1
권광일(Kwon Kwang Il),윤성원(Yoon Sung Won),김소진(Kim So Jin),강하니(Kang Hani),김해나(Kim Hae Na),김지영(Kim Jee Young),김서영(Kim Seo Young),김길례(Kim Killye),이준형(Lee Jun Hyung),정선미(Jung Sun Mi),옥소원(Ock So Won),이은주(Lee E 韓國營養學會 2010 Journal of Nutrition and Health Vol.43 No.2
본 연구에서는 가공식품 및 외식업체 메뉴의 영양표시 시행에 대한 소비자들의 인식도를 조사하였다. 본 조사는 전국 20세~59세의 부모 1,507명을 대상으로 하여 전화 면담으로 이루어졌다. 전체응답자의 89.8%가 가공식품에 영양표시가 있다는 것을 알고 있었으며, 응답자중 72.3% 가 식품 구입시 영양표시를 확인하는 것으로 나타났다. 우선적으로 확인하는 영양표시 항목은 지방 (57.1%), 열량 (56.3%), 나트륨 (49.0%)이었으며, 알기 쉽고 눈에 잘 띄도록 표시되기를 원하는 항목은 트랜스지방 (62.1%), 콜레스테롤 (26.9%), 열량 (23.9%), 나트륨 (21.0%)순이었다. 외식에 영양표시를 시행할 경우 90.6%의 응답자는 영양표시가 메뉴선택에 영향을 미칠 수 있다고 응답하였다. 패스트푸드 이외에 영양표시 시행을 원하는 외식업체는‘피자 및 치킨’이 60.7%로 가장 높았다. 외식영양표시 시행 시우선적으로 표시하기를 원하는 영양성분은 열량 (62.0%), 지방 (60.3%), 나트륨 (50.9%)으로 나타났다. 본 조사결과 소비자들은 외식 영양표시 실시에 대하여 매우 호의적이며, 표시영양성분 중 열량을 가장 중요시 하는 것으로 조사 되었다. 따라서 소비자가 현명하게 식품을 선택할 수 있는 제도가 마련되어야 할 필요가 있는 것으로 사료된다. Consumer perception of processed food and restaurant food’s nutrient labelling was surveyed. The subjects of this survey consisted of 1,507 parents, whose ages were 20-59 years old. The ratio of the respondents that have known nutrition labelling on processed foods was 89.8% and the ratio of whom have checked the nutrition labelling at their point of purchase was 72.3%. The nutrients which were considered important for nutrition labelling were fat (57.1%), calorie (56.3%) and sodium (49.0%). Also nutrient which were able to be recognized at a glance by the subjects were in the order of trans fat (62.1%), cholesterol (26.9%), calorie (23.9%) and sodium (21.0%). If restaurant menu’s nutrient labelling be enacted, the answer rate that the menu’s nutrition labelling may affect their menu choice is 90.6% of the respondents. Besides of the Fastfoods that are enforcement, restaurants of that customers want the menu to be labeled were ‘pizza and chicken restaurants’. Nutrients that customers preferred to be labelled were calorie (62.0%), fat (60.3%) and sodium (50.9%).
한국 전통간장 제조시 맥아첨가방법이 간장의 성분과 식미에 미치는 영향
권광일,이종구,이륜경,최종동,유문균,임무혁,김기주,홍영표,안영순,최광수,Kwon, Kwang-Il,Lee, Jong-Gu,Lee, Ryun-Kyung,Choi, Jong-Dong,Ryu, Mun-Kyun,Im, Moo-Hyeog,Kim, Ki-Ju,Hong, Yeong-Pyo,An, Yeong-Sun,Choi, Kwang-Soo 한국응용생명화학회 2003 한국농화학회지 Vol.46 No.3
전통간장의 맛과 품질을 개선하기 위하여 간장제조시 탄수화물과 효소원으로써 맥아의 첨가법에 대하여 연구하였다. 전통메주(대조)와 메주제조시 맥아를 첨가하여 만든 메주 및 간장 담금시 전통메주에 맥아를 첨가하여 각각 간장을 담금한 후 150일간의 숙성기간동안 간장의 성분 변화를 조사하고 숙성간장의 식미검사를 실시하였다. 메주 제조시 맥아를 첨가하여 만든 메주로 담근 간장은 대조구인 전통 콩메주로 담근 간장에 비하여 간장 담금 초기부터 150일간의 숙성을 마칠 때까지 총질소, TCA가용성 질소, 색도, 순추출물 및 젖산함량이 높았으며 맥아첨가량이 더 많은 메주로 만든 간장에서 이들 성분함량이 더 높았다. 그러나 간장 담금 할 때 간장덧에 맥아를 첨가하였을 때는 포도당을 제외하고는 전통메주로 담금한 대조구 간장보다 오히려 성분함량이 낮았다. 식미검사에서도 메주제조시 맥아를 30% 첨가한 간장이 모든 기호도 특성에서 가장 높은 점수를 얻었고 종합적 기호도 점수도 7.56점으로서 전통간장(대조구)보다 5% 수준에서 유의적으로 식미가 우수함을 보여주었다. Methods of adding barley malt as source of carbohydrates and enzymes in the production of kanjang in order to improve it's tastes and qualities were investigated. Soybean meju, soybean-malt meju and soybean meju cummalt was mashed with 20% salt brine in the ratio of 1:3 respectively, matured and analyzed the chemical compositions of the soy sauce mash samples for 150 days of maturing. Organoleptic evaluations for the matured soy sauce samples were done. The higher total nitrogen, TCA soluble nitrogen, O.D. at 500 nm, pure extract and lactic acid content could be observed with the soy sauce mash made of soybean-malt meju than those of contrast one from the beginning of the mashing throughout to the whole maturing period of 150 days. The higher the content of malt in the soybean-malt meju, the higher those content in the mash. But the lower content of those compositions in the soy sauce mash made of soybean meju cum malt than those in the contrast was found. The highest scores in all the sensory characteristics including 7.56 points, which were significantly different from that of contrast soy sauce at 5% level, in overall palatability were obtained by the soy sauce made of soybean-malt meju added with 30% malt in the organoleptic evaluations.
Omeprazole 수지염의 흰쥐와 토끼에서의 위장관내 산도변화에 따른 흡수변화 및 교차시험법에 의한 약물동태연구
권광일(Kwang Il Kwon),심상호(Sang Ho Shim) 대한약학회 1995 약학회지 Vol.39 No.4
Pharmacokinetic profiles of omeprazole enteric coated granules including Ramezole(R), Losec(R), omeprazol-Na and omeprazol-resin salt were studied using the crossover design in rats and rabbits. The absorption variance of the preparations at the altered pH condition of the gastrointestinal tract was also studied. After oral administration of four omeprazole enteric coated pellets (10mg/kg) with and without concomitant administration NaHCO3 (5mg/ml, 60mM) in the rats, the differences of absorption rate and extent were evaluated. In the NaHCO3 administration group, the Tmax appeared to be 2~10 times shorter than water administration group, and the Cmax also increased to about 4 times, and the AUC increased to about 2.5 times. Pharmacokinetic parameters of four omeprazole enteric coated pellets in rats showed no statistical significance (ANOVA, P>0.05) in both groups. In the crossover study, the second dosed drug showed 4~5 times increased bioavailability than first dosed drug, which shows the strong carry-over effect of acid secretion of the first dosed drug. The differences of the pharmacokinetic parameters of the two test formulations (Losec(R) and omeprazole-resin) showed no statistical significance.
권광일(Kwang-Il Kwon),이선경(Sun-Kyung Lee),유성은(Sung-Eun Yoo) 대한약리학회 1991 대한약리학잡지 Vol.27 No.2
β-수용체 효능약물 ((-)-NE), 길항약물 ((\pm)-propranolol, labetalol) 및 PDE 억제약물(imazodan, KR-30045, KR-30075 등)에 대한 β-adrenoceptor binding 실험을 β<sub>1</sub>/β<sub>2</sub> 비선택적 radioligand인 (-)-[<sup>3</sup>H]-DHA를 사용하여 실시하였다. Saturation 실험에서 β_1 및 β_2 수용체를 모두 갖고 있는 rat 좌심실의 β 수용체에 대한 (-)-[<sup>3</sup>H]-DHA의 K<sub>D</sub> 값은 1.5 ± 0.43 nM, B_{max}는 22.0 ± 0.9 fmol/mg protein이었다. ( ± )propranolol, labetalol 및 (-)NE는 단일상으로 (-)-[<sup>3</sup>H]-DHA의 결합을 억제하였으며 Ki 값은 각각 17.0 ± 0.43 nM, 57.3 ± 1.30 nM, 1.57 ± 0.95μM로 나타났다. 실험에 사용한 모든 PDE 억제약물들은 (-)-[<sup>3</sup>H]-DHA 결합을 10<sup>-3</sup> M의 고농도에서도 10% 미만으로 억제했다. 실험결과, propraolol, labetalol 및 NE는 β<sub>1</sub>/β<sub>2</sub> 수용체에 대해 비선택적인 약물로 나타났으며, imazodan 및 신합성 PDE 억제약물들은 rat 심근에 있는 β-수용체에 친화성이 거의 없음을 알 수 있었다. β-adrenoceptor binding study of β-agonist ((-)NE), β-antagonists (( ± ) propranolol, labetalol) and PDE inhibitors (imazodan, KR-30045, KR-30075 etc.) was performed using (-)-[<sup>3</sup>H]-DHA, as a non-β<sub>1</sub>/β<sub>2</sub> selective radioligand. In saturation studies, K<sub>D</sub> and B_{max} of (-)-[<sup>3</sup>H]-DHA to β-adrenoceptors in rat left ventricle in which both β_1 and β_2 receptors coexist were determined to be 1.5 ± 0.43 nM and 22.0 ± 0.9 fmol/mg protein, respectively. ( ± )Propranolol, labetalol and (-)NE competed for (-)-[<sup>3</sup>H]-DHA binding sites in an essentialy monophasic manner with Ki=17.0 ± 0.40 nM, 57.3 ± 1.30 nM, and 1.57 ± 0.95μM, respectively. All of PDE inhibitors inhibited the (-)-[<sup>3</sup>H]-DHA binding by only below 10% even at the high concentration of 10<sup>-3</sup>M. The present results suggest that propranolol, labetalol and NE are non-β<sub>1</sub>/β<sub>2</sub> selective antagonists and agonist, respectively. Additionally, this study shows that imazodan and new synthesized PDE inhibitors may hardly have the affinities to β-adrenoceptors in cardiac muscle.
Cefamandole nafate 함유 주사제의 지원자에 대한 생물학적 동등성 실험
권광일(Kwang Il Kwon),이혜숙(Hye Suk Lee),지옥표(Ok Pyo Zee) 대한약학회 1990 약학회지 Vol.34 No.5
The bioequivalence of Mandol and Mancef (cefamondole nafate injection preparation) was investigated for 8 healthy human volunteers. Cefamandole nafate hydrolysis to cefamandole base in the blood and shows antibacterial activity. As the rate of the hydrolysis can be varied according to the buffer used in the preparation, the bioequivalence of cefamandole nafate I.V. was studied. A new HPLC method, the column switching technique, was developed and used for the simultaneous determination of cefamandole and cefamandole nafate in the plasma and in the urine. There were no statistically significant difference in between Mandol and Mancef for the parameters of AUC and Cp 0.25 hr even through the power of the test was not enough.