Objective:To establish the standardization parameters for complete pharmacoguoslic evaluation of stems of Tlespesia lampas(T.lampas)(Cav.) Dalz & Gibs(Malvaceae),an important planl in the Indian system of medicine...Objective:To establish the standardization parameters for complete pharmacoguoslic evaluation of stems of Tlespesia lampas(T.lampas)(Cav.) Dalz & Gibs(Malvaceae),an important planl in the Indian system of medicine.Methods:Morphological,microscopical,physico-chemical evaluations,florescence analysis of T.lampas stems were investigated and preliminary phytochemical analysis,GO-MS analysis and HPTLC fingerprinting were carried out for qualitative phytochemical evaluation of various extracts of stems of T.lampas.Results:Chemomieroscopy revealed the presence of lignin.starch grains and calcium oxalate crystals.Physicochemical evaluation used to detennine numerical slandards showed a result with total ash(9.03± 0.05)%w/w,acid insoluble ash(1.50±0.01)%w/w,water soluble ash(2.51±0.02)%w/w,sulphated ash(7.50+0.01)%w/w,ethanol soluble extractive(0.24±0.02)%w/w,water soluble extractive(0.08 ±0.01)<7,w/w,moisture content(6.03±0.05)%w/w and total crude fibre content of stem powder(47.36±0.32)%w/w.Behavior characteristics of the stem powder showed presence of steroids, starch,alkaloid,flavonoids and proteins.Preliminary phytochemical analysis revealed presence of glycosides,phenolic compounds,tannins,steroids,saponins,flavonoids,carbohydrates and proteins.GC-MS analysis showed the presence of fatty acids such as dodecanoic acid, lelraclecanoic acid,n-hexadecanoic acid,9-lelradecenal and HPTLC fingerprinting revealed the presence of β-sitosterol and quercetin in stems of T.lampas.Conclusions:The pharmacognostic standardization of T.lampas is useful towards establishing standards for quality, purity and sample identification.展开更多
采用FIASCO(Fast Isolation by AFLP of Sequences Containing repeats)法和标记初步筛选法,进行了大菱鲆(Scophthalmus maximus)微卫星标记开发的研究,分析了大菱鲆基因组中微卫星DNA序列的特征,并进行了拟作图标记的初步筛选。结果表...采用FIASCO(Fast Isolation by AFLP of Sequences Containing repeats)法和标记初步筛选法,进行了大菱鲆(Scophthalmus maximus)微卫星标记开发的研究,分析了大菱鲆基因组中微卫星DNA序列的特征,并进行了拟作图标记的初步筛选。结果表明,FIASCO法的富集效率为78.56%,二次筛选出655个阳性克隆,测序后经分析有469条含有微卫星位点的单一序列,共得到597个微卫星位点。其中完美型占51.76%,非完美型占34.67%,复合型占13.57%;核心序列的重复次数在3—96次之间,平均重复数为13.39次;重复单元类别最多的是(CA/GT)n,占77.6%。利用Primer Premier 5.0共设计413对引物,其中有360对能够得到稳定表达的产物;再经标记初筛试验得知,183对引物(50.8%)的PCR产物有多态性,其中110个微卫星位点(30.6%)符合遗传连锁图谱作图标准。展开更多
基金Anchrom Laboratory,Mumbai,for providing the best available facility and kind support for this work
文摘Objective:To establish the standardization parameters for complete pharmacoguoslic evaluation of stems of Tlespesia lampas(T.lampas)(Cav.) Dalz & Gibs(Malvaceae),an important planl in the Indian system of medicine.Methods:Morphological,microscopical,physico-chemical evaluations,florescence analysis of T.lampas stems were investigated and preliminary phytochemical analysis,GO-MS analysis and HPTLC fingerprinting were carried out for qualitative phytochemical evaluation of various extracts of stems of T.lampas.Results:Chemomieroscopy revealed the presence of lignin.starch grains and calcium oxalate crystals.Physicochemical evaluation used to detennine numerical slandards showed a result with total ash(9.03± 0.05)%w/w,acid insoluble ash(1.50±0.01)%w/w,water soluble ash(2.51±0.02)%w/w,sulphated ash(7.50+0.01)%w/w,ethanol soluble extractive(0.24±0.02)%w/w,water soluble extractive(0.08 ±0.01)<7,w/w,moisture content(6.03±0.05)%w/w and total crude fibre content of stem powder(47.36±0.32)%w/w.Behavior characteristics of the stem powder showed presence of steroids, starch,alkaloid,flavonoids and proteins.Preliminary phytochemical analysis revealed presence of glycosides,phenolic compounds,tannins,steroids,saponins,flavonoids,carbohydrates and proteins.GC-MS analysis showed the presence of fatty acids such as dodecanoic acid, lelraclecanoic acid,n-hexadecanoic acid,9-lelradecenal and HPTLC fingerprinting revealed the presence of β-sitosterol and quercetin in stems of T.lampas.Conclusions:The pharmacognostic standardization of T.lampas is useful towards establishing standards for quality, purity and sample identification.
文摘采用FIASCO(Fast Isolation by AFLP of Sequences Containing repeats)法和标记初步筛选法,进行了大菱鲆(Scophthalmus maximus)微卫星标记开发的研究,分析了大菱鲆基因组中微卫星DNA序列的特征,并进行了拟作图标记的初步筛选。结果表明,FIASCO法的富集效率为78.56%,二次筛选出655个阳性克隆,测序后经分析有469条含有微卫星位点的单一序列,共得到597个微卫星位点。其中完美型占51.76%,非完美型占34.67%,复合型占13.57%;核心序列的重复次数在3—96次之间,平均重复数为13.39次;重复单元类别最多的是(CA/GT)n,占77.6%。利用Primer Premier 5.0共设计413对引物,其中有360对能够得到稳定表达的产物;再经标记初筛试验得知,183对引物(50.8%)的PCR产物有多态性,其中110个微卫星位点(30.6%)符合遗传连锁图谱作图标准。
