http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
전성운,홍충의,김동수 경성대학교 공학기술연구소 2005 공학기술연구지 Vol.12 No.-
The quality of a food is judged by the consumer according to its appearance, taste and texture. Especially among them, color is recognized as a major factor affecting food acceptance. This study was performed in order to develop a new yanggaeng products having beautiful appearances, attractive flavors, lower calories and healthier functions. We have investigated on the quality characteristics and storage stability of sweet jelly beans(colored yanggaengs) prepared by adding with natural ingredients, such as fruit juices and green tea powder. To obtain various colors and flavors, different ingredients were used such as fruit juices made directly from cherry(red color), orange(orange color, or yellow color), grapes(dark violet color). Also green tea powder(leekgreen color) was purchased from a market. Yanggaengs were prepared by adding these fruit juices or green tea powder, which Azuki bean powder as sediment, non-calorie sugar, and agar-agar products, etc. Color, texture profile analysis, sensory evaluation, viable cell count, and the strength of sample yanggaengs were examined to assess their acceptability for commercial use. In conclusion, the new colored yanggaengs could possess better appearances, flavors and healthier functions, compared with commercial products sold in market. Additionally, they could have lower calories because sugar was not used as a sweetener.
Hong, Chung-Oui,Lee, Hyun Ah,Rhee, Chae Hong,Choung, Se-Young,Lee, Kwang-Won Japan Society for Bioscience, Biotechnology, and A 2013 Bioscience, biotechnology, and biochemistry Vol.77 No.1
<P>Considering the growing evidence of the presence of antioxidant compounds in plant extracts, the objectives of this study were to identify antioxidant compounds in Lindera obtusiloba Blume (Lauraceae) and to evaluate their antimelanogenic activities on B16F10 melanoma cells. Organic solvent fractions were separated from L. obtusiloba extracts (LOE). The ethyl acetate fraction (LOE-E) was significantly active against oxidative damage induced by tert-butyl hydroperoxide in primary rat hepatocytes. Two single purified compounds, quercitrin (quercetin-3-O-α-L-rhamnopyranoside) and afzelin (kaempferol-3-O-α-L-rhamnoside), were identified by HPLC and NMR. These compounds were evaluated for antioxidant activities by 1,1-diphenyl 2-picrylhydrazyl (DPPH) radical scavenging assay and ferric reducing antioxidant power (FRAP) assay, and for their antimelanogenic activities by tyrosinase inhibitory assay melanin formation inhibition assay and Western bolt analysis for the signaling pathway. The significant effects of quercitrin on antioxidant and antimelanogenic activities, and signal modulation of ERK and MITF in B16F10 melanoma cells were observed. This is the first report to identify quercitrin in L. obtusiloba and its whitening effect.</P>
Changes in Content of Catalpol, Verbascoside and Aucubin in Period and Site of Rehmannia glutinossa
Chung Oui Hong(홍중의),Sang Hoon Lee(이상훈),Jong Won Han(한종원),Kyung Ho Ma(마경호),Yae Jin Kim(김예진),Sung Cheol Koo(구성철),Woo Moon Lee(이우문),Ei Hyun Kim(김이현),Jae Ki Chang(장재기),Sin Hee Han(한신희) 한국약용작물학회 2019 한국약용작물학회 학술대회논문집 Vol.2019 No.1
생강나무(Lindera obtusiloba Blume) 잎 70% 에탄올 추출물의 단회와 14일 반복투여 독성시험의 안전성 평가
홍충의(Chung-Oui Hong),서문영(Young Seomun),구윤창(Yun-Chang Koo),남미현(Mi-Hyun Nam),이현아(Hyun Ah Lee),김지훈(Ji-Hoon Kim),왕증(Wang-Zeng),양성용(Sung Yong Yang),이성희(Sung-Hee Lee),노수환(Su Hwan No),이광원(Kwang-Won Lee) 한국식품영양과학회 2009 한국식품영양과학회지 Vol.38 No.10
생강나무는 한국, 일본, 중국 등지에서 자생하며 열, 복통, 타박상, 출혈 등에 민간요법으로 사용되어온 식물이다. 이 논문의 목적은 오래전부터 민간요법으로 사용되어온 생강나무 잎의 안전성을 평가하고자 생강나무 잎 70% 에탄올 추출물을 암수 각 군당 5마리씩 5000(단회투여 독성시험), 0, 500, 1000, 2000(14일 반복투여 독성시험) ㎎/㎏의 용량으로 단회경구투여와 14일 반복경구투여를 실시하여 15일간의 사망률, 일반증상, 체중변화, 조직병리, 혈액학적 및 혈액 생화학적 검사를 실시하였다. 시험기간 중 사망동물은 암수 모든 시험군에서 관찰되지 않았으며, 일반증상, 체중변화, 조직병리, 혈액학적 및 혈액생화학적 검사에서 투여와 관련된 변화는 관찰되지 않았다. 이상의 결과로 보아 생강나무의 단회투여 독성은 5000 ㎎/㎏ 용량을 상회하며, 14일 반복투여의 최고용량인 2000 ㎎/㎏ 용량에서도 아무런 독성이 나타나지 않는 것으로 보아 최대무독성량은 이 농도를 상회하는 것으로 판단된다. 이로써 생강나무는 안전한 소재로서 식재료 또는 건강기능식품의 원료로서도 사용이 가능하다고 볼 수 있다. Lindera obtusiloba Blume (LO), which is widely distributed in Korea, Japan and China, has traditionally been used as a popular folk medicine for the treatment of fever, abdominal pain, bruise and extravation. The purpose of this study was to examine the toxicities of the single and 14-day repeated doses in Sprague-Dawley rats orally administrated with LO at doses of 0, 500, 1000, 2000 (14-day repeated toxicity test) and 5000 (single toxicity test) mg (dry weight)/㎏ of body weight/day. The results showed that there was no difference in body weight change, food intake, water consumption, or organ weight among different dose groups. Also we observed no death and abnormal clinical signs during the experimental period. Between the groups orally administered LO and the control group, there was no statistical significance in hematological test or serum biochemical values. There were no evidences of histopathological alteration as well as abnormal gross finding mediated by single and 14 days treatments with LO. These results suggest that no observed adverse effect level (NOAEL) of the oral application of LO was considered to be more than 2000 mg/kg in rats under the conditions employed in this study.
Sunjin Park,Chung-Oui Hong,Hyobi Kim,Yu-Jung Kim,Seon-Young Lee,Inhae Jeon,Kwang-jick Lee,Moon Her,Sung-Won Park 한국예방수의학회 2022 예방수의학회지 Vol.46 No.3
This study aims to establish a modified analytical method with sensitivity and reliability for streptomycin (STP) and dihydrostreptomycin (DHS) of residues level in pig tissues, plasma and urine by LC-MS/MS on the basis of previous studies. The mass parameters of quantitative and qualitative ions for STP and DHS were optimized using multiple reaction monitoring in positive mode. The separation of compounds was conducted using BEH Amide column according to material’s characteristics. The analytes in plasma were extracted with only organic solvents. In muscle and kidney, KH2PO4 buffer solution containing 2% CCl3COOH and EDTA-Na was used as extraction solvent. The WCX cartridege was selected as SPE cartridge in considering high recoveries for STP and DHS. The analytes in urine were extracted by organic solvents with acid and addition of EDTA. The limits of detection (LODs) in STP and DHS ranged 0.45~3.66 μg/kg and 0.22~0.78 μg/kg, respectively. The limits of quantification (LOQs) were 1.35~11.10 μg/kg in STP and 0.66~2.36 μg/kg in DHS. The recoveries (%) were 94.29~104.5% in STP and 92.32~108.45% in DHS except for plasma with lower values (61.45/68.5%, respectively). In the precision evaluation, the coefficient of variation (CV, %) of STP showed <10.50% on intra-day and <18.04% on inter-day. The CV (%) of DHS showed <8.42% on intra-day, whereas <17.98% on inter-day. The modified method is reliable for continuous residual monitoring in pig to ensure food safety for consumer’s health. In addition, this method could be used in study relation to residue depletion and pharmacokinetics of veterinary drug.