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축산제품에 응용하기 위한 콩제품 추출물의 항산화 능력에 관한 연구
이치호,문성용,이중칠,이지영,Lee Chi-Ho,Moon Seong-Yong,Lee Jung-Chil,Lee Ji-young 한국축산식품학회 2004 한국축산식품학회지 Vol.24 No.4
본 연구는 콩 제품 추출물의 항산화 활성을 DPPH 수소 공여 능으로 실험하고, 기존의 항산화제와의 상승효과 및 TBA radical scavenging activity를 실험하였고 그 결과는 다음과 같다. 콩 제품 추출물은 DPPH와 반응하여 시간이 경과함에 따라 감소하고, 시판 항산화제인 ascorbic acid는 반응 초기에 완료되는 결과를 보이는 반면 BHT와 BHA는 지속적으로 감소되는 것을 확인할 수 있었다. 또한 콩 발효식품인 된장과 청국장 추출물이 비 발효식품인 두유 추출물에 비하여 감소폭이 다소 크게 차이가 나타났다. 콩제품 추출물과 시판 항산 화제의 상승효과를 조사한 결과 모든 시험 구에서 반응시간이 경과함에 따라 감소폭이 증가하여 상승효과가 나타났으며 발효 식품인 된장과 청국장이 비 발효 식품인 두유에 비하여 시판 항산화제와의 상승효과를 더욱 강하게 나타내었다. 콩 제품 추출물의 TBA 측정을 조사한 결과, 청국장 추출물의 억제율은 45.8%, 된장추출물의 억제율은 45.2%로 나타났고, 두유 추출물의 억제율은 이보다 약 12% 낮은 33.6%로 나타났다. 따라서 이들 추출물 중 두유 추출물은 기존의 이 소플라본이 생체에 미치는 긍정적인 효과와 함께 이들 항산화제 기능을 축산식품에 응용 가능한 것으로 사료된다. This study was performed to investigate the antioxidative activity of soybean products extracts using 1, 1-diphenyl-2-picrylhydrazyl (DPPH) and thiobarbituric acid (TBA) method for application of animal products. All three extracts (natto, soybean paste, soybean milk extract) were found to have an ability to donate hydrogen to DPPH. Especially, natto and soybean paste extract were more effective than that of soybean milk on the antioxidative activities. Natto and soybean paste extract were stronger than butylhydroxy toluene (BHT), butyl hydroxyl anisole (BHA) (5${\times}$10$^{-4}$ M) and ascorbic acid (5.7${\times}$10$^{-3}$ M) previously well known as antioxidants. These extracts also showed a synergistic effect. TBA values of natto (45.8%) and soybean paste extract (45.2%) were stronger than that of soybean milk extract (33.6%). These results suggest that soybean product extracts have antioxidative activities and synergistic effects.
경추 및 요추의 통증에 사용되는 견인요법에 대한 문헌 고찰
이치호,김빛나라,정훈,이현재,이옥진,이은정,오민석,Lee, Chi-Ho,Kim, Bin-Na-Ra,Jung, Hun,Lee, Hyun-Jae,Lee, Ok-Jin,Lee, Eun-Jung,Oh, Min-Seok 척추신경추나의학회 2014 척추신경추나의학회지 Vol.9 No.2
Objectives : This study aims to evaluate domestic/foreign clinical studies related to the traction therapy and analyse points to consider about cervical/lumbar traction therapy. Methods : Seven databases were searched for related articles about cervical/lumbar traction therapy from 1950 to 2014. Fourteen clinical studies and several systemic reviews were included among 144 studies searched. Out of fourteen clinical studies, four were case series and ten were controlled trials. Results : Most of included studies reported favorable effects of traction group compared to baseline of controlled group. The various mechanical factors most relevant to traction are 1) angle of pull and direction, 2) traction force, 3) duration of traction and frequency of treatment. Conclusions : We found various mistake in the applications of statistical methodologies of traction therapy targeting patients of cervical, lumbar vertebral disease. It is necessary for more randomized controlled trials to evaluate effect of cervical/lumbar traction therapy targeting patients of cervical, lumbar vertebral disease.
고추씨유, 캡사이신 및 토코페롤의 첨가가 돈지와 대두유의 산화안정성에 미치는 영향
이치호,한규호,김아영,이슬기,홍고은,변장원,최강덕,양철영,Lee, Chi-Ho,Han, Kyu-Ho,Kim, Ah-Young,Lee, Seul-Ki,Hong, Go-Eun,Pyun, Chang-Won,Choi, Kang-Duk,Yang, Cheul-Young 한국축산식품학회 2008 한국축산식품학회지 Vol.28 No.5
This study was designed to compare the thermal oxidative stability of lard, soy bean oil, and hot pepper seed oil for 0-3 d at $100^{\circ}C$, and to evaluate the effect of capsaicin on thermal oxidative stability in lard and soy bean oil. As result, thermal oxidation stability was shown in the order hot pepper seed oil>soy bean oil>lard for 0-3 d at $100^{\circ}C$. In blended oils, hot pepper seed oil effectively inhibited lipid oxidation when mixed with lard than soy bean oil by showing the ratio of 30% pepper seed oil plus 70% lard and 60% pepper seed oil plus 40% soy bean oil inhibited lipid oxidation during storage periods. And to investigate the antioxidative effect of antioxidants such as capsaicin and alpha-tocopherol in hot pepper seed oil, 1,200 and 2,400 ppm capsaicin, or 0.3% alpha-tocopherol were added in soy bean oil and lard and stroed for 0-3 d at $100^{\circ}C$. Capsaicin inhibited lipid oxidation in lard but not in soy bean oil, however alpha-tocopherol exhibited a prooxidaton effect in soybean oil. Therefore, it suggests that the application of hot pepper seed oil or capsaicin in lard may be better for thermal oxidative stability.
추적 파라미터를 고려한 주파수 도약신호 추적 잡음 재밍의 성능 분석
이치호,조성진,류정호,Lee, Chi-Ho,Jo, Sung-Jin,Ryu, Jeong-Ho 한국군사과학기술학회 2008 한국군사과학기술학회지 Vol.11 No.3
In this paper, we analyze the performance of Follower Noise Jamming(FNJ) considering three practical tracking parameters such as tracking bandwidth, tracking time and tracking success probability. The performance of FNJ is compared with that of Partial-Band Noise Jamming(PBNJ) in terms of Symbol Error Rate(SER) at the communication receiver under the assumed typical operation model. It is observed that the performance of FNJ is non-linearly dependent on the tracking bandwidth, the tracking time and the tracking success probability. As we can easily expect, it is also observed that the performance of FNJ is better than that of the PBNJ. Finally, it is shown that, for a fixed tracking bandwidth, the combinations of the required tracking time and the tracking success probability which satisfy a certain required SER.
Wistar Rat에 있어서 체지방 축적에 미치는 식이단백질 수준, 카페인 및 녹차의 영향에 관한 연구
이치호(Chi-Ho Lee),최병규(Byung-Kyu Choi),이원창(Woon-Chang Lee),박창일(Chang-II Park),후루가와유지로(Yuziro-Furugawa),기무라슈이찌(Shuichi-Kimura) 한국식품영양과학회 1993 한국식품영양과학회지 Vol.21 No.6
본 연구는 흰 쥐에 있어서의 식이단백질 수준, 카페인 또는 녹차가 체지방 축적에 미치는 영향을 검토하였다. 실험동물은 체중 90g 전후의 이유기후의 수컷 Wistar rat를 사용하여 식이단백질 수준을 달리하여, 카페인 또는 녹차의 첨가유무로 6군으로 나누어 8주동안 실시하였다. 그 결과를 요약하면 다음과 같다. 5% PEP 수준에 있어서 카페인 또는 녹차분말을 첨가한 군의 체중 및 사료효율이 유의하게 낮았다(p<0.05). 카페인 또는 녹차분말을 첨가한 5% PEP 수준에서 체중 및 백색지방조직의 중량이 유의하게 감소하였다(p<0.01). 카페인 또는 녹차를 첨가한 5% PEP 수준에서 혈장 및 간장중의 triglyceride 농도가 유의하게 감소하였다(p<0.01). 이와 같은 영향은 녹차첨가군에서 현저하게 나타났다. 5% 및 15% PEP군에 카페인 또는 녹차 분말을 첨가한 군에서 혈장 콜레스테롤, 유리 콜레스테롤 및 콜레스테롤 에스테르의 수준이 대조군에 비해 유의하게 높은 것이었다(p<0.01). 반면에 HDL 콜레스테롤 수준은 유의하게 높은 값이었다(p<0.01). 특히 6.1% 녹차분말 첨가군에서의 동맥경화지수가 대조군에 비해 현저하게 낮게 나타났다. This study was performed to investigate the effects of dietary protein levels (5% and 15% PEP), caffeine or green tea powder on body fat deposition in rats. Male weanling Wistar rats weighing the average of 90g were allotted into 6 experimental groups, each of which was fed two different levels of dietary protein with or without caffeine or green tea powder (5p+0.15% caffeine; 5p+6.1% green tea powder; 15p+0.15% caffeine ; 15p+6.1% green tea powder) during 8 weeks of the experimental period. Caffeine and green tea powder were supplemented at the levels of 0.15% and 6.1% of experimental diets. The rats fed 5% PEP diet which had received caffeine or green tea powder showed significantly (p<0.01) reduced gain in body weight. The food efficiency of which rats fed both 5% and 15% PEP diet supplemented with 6.1% green tea powder was significantly low (p<0.05, respectively) compared with the control group. Rats fed diets containing 0.15% caffeine and 6.1% green tea powder showed the significant reduction (p<0.01) of white adipose tissue weight, triglycerides levels of liver and plasma. The addition of 0.15% caffeine or 6.1% green tea powder to 5% and 15% PEP diet resulted in significantly (p<0.01) higher levels of plasma total cholesterol, free cholesterol, cholesterol ester, but HDL-cholesterol levels were significantly (p<0.01, in 5% PEP group) high. The atherogenic index (Tchol-HDLchol/HDLchol) in rats fed 6.1% green tea powder diets decreased especially compared with the control group.
좌골신경 손상에 대한 한약물 치료효과에 대한 실험논문 분석 - 국내외 한의계 연구를 중심으로 -
이치호 ( Chi-ho Lee ),이재은 ( Jae-eun Lee ),최영준 ( Young-jun Choi ),이은정 ( Eun-jung Lee ),오민석 ( Min-seok Oh ) 대한한의학회 한방재활의학과학회 2016 한방재활의학과학회지 Vol.26 No.4
Objectives This study is to review the effect of herbal medicine on treatment of sciatic nerve injury induced animal models reported in domestic & foreign journals. Methods 5 electronic databases (Pubmed, CAJ, RISS, Oasis, Koreantk) were searched with term as sciatic nerve injury, and animal study reports on sciatic nerve impairment with herbal medicine treatment were extracted. Results 31 articles were reviewd. All studies used SD rat. 26 studies used crush injury at the sciatic nerve using haemostatic forcep and 5 studies used sciatic nerve transection. 15 studies used single herb extract and 16 studies used complex herb medicine. Angelica gigantis radix was the most frequently used herb. Each study showed significant changes of improvement indicators from sciatic nerve impairment. Conclusions Various herb medicine are expected to have positive effects on sciatic nerve impairment. (J Korean Med Rehabil 2016;26(4):9-21)