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Na, Young-Mee,Noh, Tae-Hwan,Ha, Byung-Jo,Hong, Jong-Ki,Jung, Ok-Sang Korean Chemical Society 2009 Bulletin of the Korean Chemical Society Vol.30 No.3
The reaction of $(en)Pd(NO_3)_2$ (en = ethylenediamine) with 1,4-bis(dimethyl-4-pyridylsilyl)benzene (L) affords cyclodimer, $[(en)Pd(L)]_2(NO_3)_4$, whereas the reaction of $(tmeda)Pd(NO_3)_2$ (tmeda = N,N,N’,N’-tetramethylethylenediamine) with L gives cyclotrimer, $[(tmeda)Pd(L)]_3(NO_3)_6$. Both complexes exist as catenane in water. The catenated cyclodimer is rigid whereas the catenated cyclotrimer is dynamic in water. The catenated cyclotrimers afford hydrogel containing 98.5% water below 2 ${^{\circ}C}$. The hydrogel changes to its sol around 38 ${^{\circ}C}$, and to its clear solution at 78 ${^{\circ}C}$. Such a notable difference between $[(en)Pd(L)]_2(NO_3)_4$ and $[(tmeda)Pd(L)]_3(NO_3)_6$ might be explained by their different dynamic behavior via ring size effects.
Yu-Na Song,Hae-Geun Hong,Jong Seong Son,Yeon Ok Kwon,Hyun Ho Lee,Hyeon Ji Kim,Jeong Hwa Park,Myeong Jin Son,Jo-Gyo Oh,Mi-Hye Yoon 한국식품영양과학회 2019 Preventive Nutrition and Food Science Vol.24 No.3
There has been very little reported on ginsenoside composition and antioxidant activity of hydroponic-cultured ginseng roots (HCR), leaves (HCL), and stems (HCS). We profiled 6 ginsenoside compounds in HCR, HCL, and HCS using high-performance liquid chromatography. Antioxidative activity of HCR, HCL, and HCS were evaluated using total phenolic content (TPC) and total flavonoid content (TFC), 2,2-diphenyl-1-picrylhydrazyl (DPPH) free-radical-scavenging activity assays, and ferric reducing antioxidant power (FRAP) assays. Total ginsenoside contents of HCL and HCS were significantly higher than that of HCR (P<0.05). Rb1 was detected in HCR (23.02 mg/g) but was detected at very low levels in HCL and HCS (2.07∼7.30 mg/g). Rg1 was the most abundant ingredient in HCL, followed by Rd; this was different than for HCR and HCS. The TPC and TFC ranged from 52.82∼155.31 mg gallic acid equivalent/100 g and 194.71∼256.52 mg quercetin equivalent/100 g, respectively, of which HCL contained the highest levels. Moreover, HCL was the most effective in both DPPH and FRAP activities. In this study, we also evaluated the inhibitory effect of HCR, HCL, and HCS on the activities of mushroom tyrosinase through whitening activity test. The inhibitory effect of HCL on tyrosinase activity was higher than that of HCR and HCS. This study provides information about ginsenoside contents and the antioxidative activity of hydroponic-cultured ginseng, and suggests that the whole ginseng plant (including roots, leaves, and stems) may be a beneficial functional vegetables.
교배 조합 토종닭의 지방산, 아미노산 및 핵산 관련 물질 함량
박미나(Mi-Na Park),홍의철(Eui-Chul Hong),강보석(Bo-Seok Kang),김학규(Hak-Kyu Kim),허강녕(Kang-Nyeong Heo),한재용(Jae-Yong Han),조철훈(Cheorun Jo),이준헌(Jun-Heon Lee),추효준(Hyo-Jun Choo),서옥석(Ok-Suk Suh),황보종(Jong Hwangbo) 韓國家禽學會 2011 韓國家禽學會誌 Vol.38 No.2
본 시험은 토종닭의 교배 조합이 계육의 지방산과 아미노산 및 핵산 관련 물질 함량에 미치는 영향을 조사하기 위하여 수행되었다. 공시계는 4개 교배 조합으로 발생된 3원 교잡종을 이용하였다. 시험 설계는 A(CS×B), B(CH×S), C(RS×H), D(백세미)로 하였으며, 4처리구에 따라 암수 각각 9반복, 반복당 10수씩(4×2×9×10) 총 720수를 완전 임의 배치하였다. 시험 사료는 제시한 옥수수-대두박 위주의 준육용계 사료를 자체 제작하여 이용하였다. 5주령 계육의 포화지방산의 함량은 C처리구에서 가장 낮았으며, A처리구가 가장 높았다(p<0.05). 10주령 계육의 포화지방산의 함량은 5주령 계육과 마찬가지로 C처리구에서 가장 낮았으며, A처리구가 가장 높았다(p<0.05). 계육의 아미노산 함량은 모든 계육의 필수 아미노산 함량은 lysine, leucine, arginine, phenylalanine 등의 순이었고, 비필수 아미노산 함량은 glutamic acid, aspartic acid, alanine 등의 순이었다. 5주령에서는 필수 아미노산 중 valine, leucine, phenylalanine 및 lysine은 A계통에서 가장 낮게 나타났으며, phenylalanine과 lysine 함량은 B계통에서 가장 높았다(p<0.05). 비필수 아미노산 중 cystine, aspartic acid, glycine, alanine 및 proline은 A계통에서 가장 낮았고(p<0.05), 다른 계통들 사이에서는 차이가 없었다. 10주령 계육의 아미노산 함량은 모든 처리구에서 유의적인 차이가 없었다. 계육의 핵산 관련 물질 중 hypoxanthine(Hx)은 5주령에서 C처리구가 14.5%로 가장 높게 나타났으나, 10주령에서는 B처리구가 9.29%로 가장 높게 나타났다(p<0.05). 처리구간 계육의 Inosine monophosphate(IMP)는 각각 131.4 ㎎/100 g, 187.7 ㎎/100 g, 250.2 ㎎/100 g 및 214.0 ㎎/100 g으로 A, B, C처리구 사이에 유의차가 있었다(p<0.05). 10주령의 IMP는 C처리구가 258.6 ㎎/100 g으로 가장 높았고(p<0.05), A, B, D처리구 사이에서는 차이가 없었다. 5주령의 adenosine mono phosphate (AMP)는 처리구간 차이가 없었으나, 10주령에서는 5.46 ㎎/100 g, 5.96 ㎎/100 g, 5.45 ㎎/100 g 및 5.47 ㎎/100 g으로 B처리구에서 가장 높게 나타났다(p<0.05). The current work was carried out to investigate the effect of crossbred Korean native chickens (KNC) on fatty acid, amino acid and nucleotide-related compounds contents of chicken meat. A total of 360 male chicks (1d of age) was used in this work and were divided 4 groups as A) (KNC egg-meat type C strains × KNC meat type S strains) × Ross broiler, B) (KNC egg-meat type C strains × KNC meat type H strains) × KNC meat type S strains, C) (KNC native R strains × KNC meat type S strains) × KNC meat type H strains and D(White Semibroiler Chickens) strains for 5 weeks at the flat house. Palmitic acid and vaccenic acid were highest in C strain meat, and myristic acid and linolenic acid were lowest in A strain meat (p<0.05). Saturated fatty acid was lowest in C strain meats (p<0.05). Valine, leucine, phenylalanine and lysine of essential acid were low in A strain meat. Cystine, aspartic acid, glycine, alanine and proline were also low in A strain meat. Hypoxanthin (Hx) was high compared other strains at 5 weeks and low at 10 weeks. IMP was high compared other strains at 5 and 10 weeks. AMP has not significant difference among strains at 5 weeks but B strain was high other strains at 10 weeks. These results showed that C stain was excellent on the fact of nutrients compared to other strains. Consequently, the result of this work gave the basic data that needed to develope the new strains.
증례 : 감염 ; 진균과 세균 복합 감염의 척추체-추간판염 1예
조미옥 ( Mi Ok Cho ),송영구 ( Young Goo Song ),이서희 ( Seo Hui Lee ),조세희 ( Se Hee Jo ),최아란 ( Ah Ran Choi ),은나래 ( Na Lae Eun ),진성준 ( Sung Joon Jin ) 대한내과학회 2015 대한내과학회지 Vol.88 No.4
내원 3개월 전 척추 수술을 시행 받았던 66세 여자 환자가 요통 및 하지 동통으로 내원하였다. Magnetic resonance image상 척추체-추간판염 소견이 보였으며 조직 검사를 통한 세균 배양 검사에서 Enterococcus faecium과 Candida parapsilosis가 동정되어 진균과 세균의 복합 감염으로 확인되었다. 저자는 적극적인 조직 배양 검사를 통해 진균과 세균의 복합 감염을 정확히 진단함으로써 이에 따른 적절한 치료를 시행하여 문헌고찰과 함께 보고하는 바이다. 또한 본 사례를 통해 진단율을 높이는 적극적인 조직 검사를 독려하고자 한다. A 66-year-old female who had undergone surgery for a herniated disc at the L5-S1 level at another hospital 3 months earlier was admitted with persistent back and leg pain. She was diagnosed with spondylodiscitis at the L5-S1 level by magnetic resonance imaging. A biopsy was performed, and Candida parapsilosis and Enterococcus faecium were isolated from the excised material. We report herein a case of successful treatment of polymicrobial spondylodiscitis in accordance with accurate microbiological diagnosis. Based on this case, we hope to encourage physicians to perform biopsies more aggressively or repeatedly to improve the diagnostic yield.