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对甲苯磺酰氨基酸甲醇或2,2-联吡啶混配Cu(II)配合物的电化学合成及表征
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作者 张秀梅 高伟 褚道葆 《安徽师范大学学报(自然科学版)》 CAS 2007年第2期146-150,共5页
采用金属Cu为“牺牲阳极”,在含配体对甲苯磺酰L-异亮氨基酸(H2L)的甲醇溶液中电解合成了[Cu(L)(2CH3OH)]配合物.当向含配体的甲醇溶液中加入2,2′-联吡啶时,电解合成了[Cu(L)(2,2’-bipy)]配合物.利用元素分析、红外光谱、紫外光谱、... 采用金属Cu为“牺牲阳极”,在含配体对甲苯磺酰L-异亮氨基酸(H2L)的甲醇溶液中电解合成了[Cu(L)(2CH3OH)]配合物.当向含配体的甲醇溶液中加入2,2′-联吡啶时,电解合成了[Cu(L)(2,2’-bipy)]配合物.利用元素分析、红外光谱、紫外光谱、热分析对配合物进行了表征.测试了铜电极在溶液中的电化学行为和配合物的电化学性质. 展开更多
关键词 金属铜配合物 电化学合成 “牺牲”阳极法 对甲基苯磺酰L-异亮氨基酸
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蚕蛹资源开发和利用的探讨 被引量:9
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作者 李政 李秀艳 魏克民 《氨基酸和生物资源》 CAS 1988年第2期7-11,共5页
蚕蛹是制丝厂的大宗副产品,我国蚕蛹产量为世界之首。1985年达到12.85万吨,分析表明干燥蚕蛹约含蛋白质60%,脂肪30%左右,脱脂后蛋白含量达79.0 6%,每年可获蛋白质约7.7万吨。蚕蛹蛋白系全价蛋白,含18种氨基酸,其必需氨基酸含量符合FAO/... 蚕蛹是制丝厂的大宗副产品,我国蚕蛹产量为世界之首。1985年达到12.85万吨,分析表明干燥蚕蛹约含蛋白质60%,脂肪30%左右,脱脂后蛋白含量达79.0 6%,每年可获蛋白质约7.7万吨。蚕蛹蛋白系全价蛋白,含18种氨基酸,其必需氨基酸含量符合FAO/WHO标准,本文对国内外目前蚕蛹利用情况及进一步深加工进行探讨,认为脱臭后可提取食用蛋白质及氨基酸产品,为增加我国营养氮源和食品,药品工业提供廉价产品,为我国制丝工业综合利用开辟新的途径。 展开更多
关键词 蚕蛹蛋白 全价蛋白 氨基酸组成 必需氨基酸含量 药品工业 廉价产品 营养成分 制丝 资源开发 异亮氨基酸
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提高肉猪饲料报酬的科学途径
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作者 刘学剑 《当代畜禽养殖业》 1994年第5期19-20,共2页
饲料是畜牧业发展的物质基础,能否获得质优价廉的饲料,是决定养猪效益高低的前提。要提高饲料报酬,节约饲料,降低饲养成本,科学的用料是关键,合理的管理是保证。 1.饲养优良的杂种猪;
关键词 饲料报酬 杂种猪 饲养成本 畜牧业发展 生产性能 饲喂次数 营养水平 饲料利用率 投料量 异亮氨基酸
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Alteration of encephalomyocarditis virus pathogenicity due to a mutation at position 100 of VP1 被引量:2
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作者 ZHU Shu GE XinNa GONG XiaoWen GUO Xin CHEN YanHong YANG HanChun 《Science China(Life Sciences)》 SCIE CAS 2011年第6期535-543,共9页
Encephalomyocarditis virus (EMCV) infection leads to many diseases including encephalitis,myocarditis and diabetes in its natural host,the mouse.In this study,we generated four cDNA clones with a point mutation at pos... Encephalomyocarditis virus (EMCV) infection leads to many diseases including encephalitis,myocarditis and diabetes in its natural host,the mouse.In this study,we generated four cDNA clones with a point mutation at position 100 of VP1.The amino acids isoleucine,alanine,serine and proline were substituted with threonine in the four different clones of EMCV strain BJC3 by site-specific mutagenesis,and viable viruses were rescued.Although all mutants and wild-type viruses display different plaque morphologies,they replicate comparably in BHK-21 cells.The pathogenicity of the mutated viruses was systematically analyzed to investigate the importance of this amino acid in the viral pathogenicity and disease phenotype of EMCV infection in mice.The results showed that the isoleucine(T1100I) and proline-mutated viruses (T1100P) exhibited a reduced mortality,lower cerebral virus loads and alleviated brain damage while the viruses with serine (T1100S) and alanine (T1100A) substitutions displayed similar properties as the wild-type virus.These findings indicate that the amino acid at position 100 of VP1 is important for EMCV in vivo infection,and its mutation alters the pathogenicity of viral infection in mice. 展开更多
关键词 encephalomyocarditis virus (EMCV) VP1 MUTATION PATHOGENICITY
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Plasma amino acid profiling of cancer patients with abnormal Savda based on high-performance liquid chromatography 被引量:1
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作者 Batur Mamtimin Kedena +5 位作者 Bin Kong Ayshamgul Hasim Aynur Matsidik Mawlanjan Hizbulla Nazuk Kurbantay Halmurat Upur 《Journal of Traditional Chinese Medicine》 SCIE CAS CSCD 2014年第5期560-565,共6页
OBJECTIVE: To investigate metabolic signatures in plasma of cancer patients with abnormal Savda using plasma-free amino acid profiles, and to evaluate the diagnostic potential of these profiles for the detection and e... OBJECTIVE: To investigate metabolic signatures in plasma of cancer patients with abnormal Savda using plasma-free amino acid profiles, and to evaluate the diagnostic potential of these profiles for the detection and explanation of the mechanisms of different symptoms in traditional Uyghur medicine.METHODS: Plasma samples from cancer patients with abnormal Savda(n=85) or non-abnormal Savda(n=105) and a healthy control group(n=65)were analyzed using high-performance liquid chromatography(HPLC). Orthogonal projection to latent structures with discriminant analysis was used for the classification and prediction of abnormal Savda, and spectral profiles were subjected to Student's t-tests to assess statistical significance.RESULTS: Compared with the healthy group, the levels of aspartic acid, glutamate, glycine, histidine,arginine, threonine, alanine, proline, methionine,isoleucine, leucine and phenylalanine decreased significantly in plasma of cancer patients with abnormal Savda(all P<0.05). Serine, cystine, tyrosine,valine and lysine levels showed no significant differences(all P>0.05). Compared with non-abnormal Savda syndrome patients, abnormal Savda syndrome patients showed high concentrations of glutamate, serine, valine, isoleucine, leucine and phenylalanine(all P<0.05). The remaining plasma amino acids showed no significant differences(all P>0.05).CONCLUSION: Plasma-free amino acid profiling has the potential to assist in understanding and determining abnormal Savda. A HPLC-based metabonomic platform could be a powerful tool for the classification of symptoms in traditional medicine. 展开更多
关键词 Amino acids Medicine Uyghur tradi-tional Chromatography High pressure liquid Ab-normal Savda
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