[Objectives] This study was conducted to investigate the microscopic identification characteristics of Laportea bulbifera(Sieb. et Zucc.) Wedd. [Methods] The characteristics of L. bulbifera leaf, stem and powder were ...[Objectives] This study was conducted to investigate the microscopic identification characteristics of Laportea bulbifera(Sieb. et Zucc.) Wedd. [Methods] The characteristics of L. bulbifera leaf, stem and powder were identified by microscopy. [Results] The main microscopic identification characteristics of the tissue structures of L. bulbifera leaf and stem at different positions and L. bulbifera powder were determined. [Conclusions] The microscopic identification results are characteristic, and could serve as the identification basis of L. bulbifera. These results could provide references for the quality control of L. bulbifera.展开更多
[Objectives] This study was conducted to establish the quality control standards for Laportea bulbifera(Sieb. et Zucc.) Wedd. [Methods] Microscopic identification and thin layer chromatography were used to identify an...[Objectives] This study was conducted to establish the quality control standards for Laportea bulbifera(Sieb. et Zucc.) Wedd. [Methods] Microscopic identification and thin layer chromatography were used to identify and determine the moisture, total ash and extract contents. [Results] According to the microscopic results, the stem transection is round and has five longitudinal edges at which the cell wall is obviously thickened. Bristles can be observed. A series of collenchyma cells are arranged closely inside the epidermis. There are several rows of parenchyma cells. The vascular bundles are of different sizes;and the ray part is wide, and at the junction of the ray and the cortex, there are often scattered secretory cells. The center is a broad medulla. The powder is brown. There are many starch grains. The bristles are unicelluar, and have warty protrusions and expanded base. The fibers are bundled, and the cells are large. The epidermal cells are in the shape of an elongated spindle, in a mosaic arrangement, and the cell wall is slightly thickened. From the thin layer identification chromatograms of tested L. bulbifera, it can be seen that spots were observed at the same positions as the control medicinal material, and the durability of the method was good. The extract content should not be less than 12.00% by hot extraction with water as solvent, and not be less than 3.00% by cold extraction with ethanol as solvent. The moisture content should not be more than 16.50%. The total ash content should not be more than 14.00%. The acid-insoluble ash content should not be more than 2.50%. [Conclusions] The microscopic identification results are reliable and can be used as the identification basis of L. bulbifera. The thin layer identification method and the test results can provide a basis for quality control of L. bulbifera.展开更多
目的：研究多枝雾水葛[Pouzolzia zeylanica（L.）Benn. var. microphylla（Wedd.） W.T.Wang]的化学成分。方法采用多种柱层析方法进行分离纯化,通过理化性质和波谱解析进行化学结构鉴定。结果从多枝雾水葛的乙酸乙酯部位和正丁醇部位...目的：研究多枝雾水葛[Pouzolzia zeylanica（L.）Benn. var. microphylla（Wedd.） W.T.Wang]的化学成分。方法采用多种柱层析方法进行分离纯化,通过理化性质和波谱解析进行化学结构鉴定。结果从多枝雾水葛的乙酸乙酯部位和正丁醇部位分离得到9个化合物,分别鉴定为槲皮素-3-O-[α-L-鼠李糖（1→6）-β-D-葡萄糖]-7-O-α-L-鼠李糖苷（1）、山柰酚-7-O-α-L-吡喃鼠李糖苷（2）、（6R,9R）-1-酮-α-紫罗兰醇-9-O-β-D-吡喃葡萄糖（3）、蚱蜢酮（4）、苄基-O-β-D-吡喃葡萄糖苷（5）、3,4,5-三甲氧基苯-1-O-β-D-吡喃葡萄糖苷（6）、邻苯二甲酸二辛酯（7）、山柰酚（8）、芹菜素（9）。结论化合物1、3~6、8~9首次从该属植物中分离得到。展开更多
目的研究多枝雾水葛Pouzolzia zeylanica var. microphylla醋酸乙酯部位的化学成分。方法采用95%乙醇回流提取,系统溶剂法对醇提物进行萃取,醋酸乙酯萃取部位通过正相、反相柱色谱,半制备高效液相色谱等方法进行分离,化合物通过波谱解...目的研究多枝雾水葛Pouzolzia zeylanica var. microphylla醋酸乙酯部位的化学成分。方法采用95%乙醇回流提取,系统溶剂法对醇提物进行萃取,醋酸乙酯萃取部位通过正相、反相柱色谱,半制备高效液相色谱等方法进行分离,化合物通过波谱解析法确定结构。结果从多枝雾水葛醋酸乙酯部位分离鉴定了10个化合物,分别为(2R,3S,4R,5S)-2,5-二-(4-羟基-3-甲氧基苯基)-3,4-二-(3,5-二羟基苯基)四氢呋喃(1)、pouzolignan K(2)、saropeptide(3)、去氢吐叶醇(4)、对羟基苯甲酸(5)、异香兰酸(6)、原儿茶酸(7)、丁香酸(8)、原儿茶醛(9)、原儿茶酸乙酯(10)。结论化合物1为新化合物,命名为异雾水葛木脂素K,化合物3～10均为首次从该属植物中分离得到。展开更多
基金Supported by Guangxi Colleges and Universities Scientific Research Funding Project(NO.YB2014192)Guangxi Zhuang Medicine Quality Evaluation and Standard Research Project(NO.MZY2013023)+2 种基金Guangxi Scientific Research and Technological Development Program(GKG14124002-11-1)High-level-innovation Team and Outstanding Scholar Project of Guangxi Higher Education Institutes-Zhuang Medicine Basic and Clinical Innovation Team(GJR [2014]07)College Students'Innovation and Enterpreneurship Training Program of Guangxi University of Chinese Medicine(NO.2017DXS35)
文摘[Objectives] This study was conducted to investigate the microscopic identification characteristics of Laportea bulbifera(Sieb. et Zucc.) Wedd. [Methods] The characteristics of L. bulbifera leaf, stem and powder were identified by microscopy. [Results] The main microscopic identification characteristics of the tissue structures of L. bulbifera leaf and stem at different positions and L. bulbifera powder were determined. [Conclusions] The microscopic identification results are characteristic, and could serve as the identification basis of L. bulbifera. These results could provide references for the quality control of L. bulbifera.
基金Supported by Study on Quality Evaluation and Standards of Guangxi Yao Medicine(MZY2012015)Guangxi Key Laboratory of Zhuang Yao Medicine(GKJZ[2014]32)+2 种基金Zhuang Yao Medicine Collaborative Innovation Center(GJKY[2013]20)High-level-innovation Team and Outstanding Scholar Project of Guangxi Higher Education Institutions:Zhuang Medicine Foundation and Clinical Innovation Team(GJR[2014]07)Student Research Training Program of Guangxi University of Chinese Medicine(NO.2017DXS35).Wei WEI(1981-),male,P.R.China,experimentalist,devoted to research about Tradition Chinese medicine and ethnic drug
文摘[Objectives] This study was conducted to establish the quality control standards for Laportea bulbifera(Sieb. et Zucc.) Wedd. [Methods] Microscopic identification and thin layer chromatography were used to identify and determine the moisture, total ash and extract contents. [Results] According to the microscopic results, the stem transection is round and has five longitudinal edges at which the cell wall is obviously thickened. Bristles can be observed. A series of collenchyma cells are arranged closely inside the epidermis. There are several rows of parenchyma cells. The vascular bundles are of different sizes;and the ray part is wide, and at the junction of the ray and the cortex, there are often scattered secretory cells. The center is a broad medulla. The powder is brown. There are many starch grains. The bristles are unicelluar, and have warty protrusions and expanded base. The fibers are bundled, and the cells are large. The epidermal cells are in the shape of an elongated spindle, in a mosaic arrangement, and the cell wall is slightly thickened. From the thin layer identification chromatograms of tested L. bulbifera, it can be seen that spots were observed at the same positions as the control medicinal material, and the durability of the method was good. The extract content should not be less than 12.00% by hot extraction with water as solvent, and not be less than 3.00% by cold extraction with ethanol as solvent. The moisture content should not be more than 16.50%. The total ash content should not be more than 14.00%. The acid-insoluble ash content should not be more than 2.50%. [Conclusions] The microscopic identification results are reliable and can be used as the identification basis of L. bulbifera. The thin layer identification method and the test results can provide a basis for quality control of L. bulbifera.
文摘目的：研究多枝雾水葛[Pouzolzia zeylanica（L.）Benn. var. microphylla（Wedd.） W.T.Wang]的化学成分。方法采用多种柱层析方法进行分离纯化,通过理化性质和波谱解析进行化学结构鉴定。结果从多枝雾水葛的乙酸乙酯部位和正丁醇部位分离得到9个化合物,分别鉴定为槲皮素-3-O-[α-L-鼠李糖（1→6）-β-D-葡萄糖]-7-O-α-L-鼠李糖苷（1）、山柰酚-7-O-α-L-吡喃鼠李糖苷（2）、（6R,9R）-1-酮-α-紫罗兰醇-9-O-β-D-吡喃葡萄糖（3）、蚱蜢酮（4）、苄基-O-β-D-吡喃葡萄糖苷（5）、3,4,5-三甲氧基苯-1-O-β-D-吡喃葡萄糖苷（6）、邻苯二甲酸二辛酯（7）、山柰酚（8）、芹菜素（9）。结论化合物1、3~6、8~9首次从该属植物中分离得到。
文摘目的研究多枝雾水葛Pouzolzia zeylanica var. microphylla醋酸乙酯部位的化学成分。方法采用95%乙醇回流提取,系统溶剂法对醇提物进行萃取,醋酸乙酯萃取部位通过正相、反相柱色谱,半制备高效液相色谱等方法进行分离,化合物通过波谱解析法确定结构。结果从多枝雾水葛醋酸乙酯部位分离鉴定了10个化合物,分别为(2R,3S,4R,5S)-2,5-二-(4-羟基-3-甲氧基苯基)-3,4-二-(3,5-二羟基苯基)四氢呋喃(1)、pouzolignan K(2)、saropeptide(3)、去氢吐叶醇(4)、对羟基苯甲酸(5)、异香兰酸(6)、原儿茶酸(7)、丁香酸(8)、原儿茶醛(9)、原儿茶酸乙酯(10)。结论化合物1为新化合物,命名为异雾水葛木脂素K,化合物3～10均为首次从该属植物中分离得到。
