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山柰及其伪品苦山柰的紫外光谱鉴别

中药材 1994年第5期17卷 24-55页

作者：杨国生林琪宇彭玉君自贡市药品检验所自贡市药品检验所 643000

山柰为姜科植物山柰KKaempferia galanga L.的根茎,苦山柰为共同属植物苦山柰*** ***.的根茎。据文献记载苦山柰有毒,不能药用。由于二者性状极为相似,采用《中国药典》一九九○年版及文献方法鉴别较为繁琐,所以我们应用紫外光谱法进行... 详细信息

山柰为姜科植物山柰KKaempferia galanga L.的根茎,苦山柰为共同属植物苦山柰*** ***.的根茎。据文献记载苦山柰有毒,不能药用。由于二者性状极为相似,采用《中国药典》一九九○年版及文献方法鉴别较为繁琐,所以我们应用紫外光谱法进行鉴别。 1 材料及仪器材料:来源于自贡市中药材公司、部分医疗单位以及由市场购得,经鉴定为山柰及苦山柰。

关键词： Cacumen Platyciadi Processing Antiseptic action total flavones

Preparation technology of Naoxueling capsules

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中国现代医学杂志 2011年第6期21卷 733-742页

作者： Li-qun Kang Bo Li Jia-gen Wen Ying He Qi-lu Wang Hui-ying Li Yu-xiang Chen School of Pharmacy Central South University Changsha Hunan 410013 P.R.China School of Biological Science and Technology Central South University Changsha Human 410013 P.R.China

Objective To optimize the preparation of the Naoxueling *** To optimize the extraction of the Naoxueling prescription successively with alcohol and water,several principal ingredients in the final extracts were evaluated and data were analyzed by the orthogonal *** capsule-molding process was investigated by measuring the angle of repose and the moisture absorption *** The optimum process of the alcohol extraction was the refluxing of herbs first in twelve-fold volume of 75% ethanol for 2 h,then in eight-fold volume of 75% ethanol for 1.5 h,and finally in seven-fold volume of 75% ethanol for 0.5 ***,the best water extraction was performed by boiling samples in twelve-fold amount of water for 2 h followed by another 1 h in eight-fold amount of *** mold the capsule,the appropriate ratio of micro-powder to dextrin was 20:*** The preparation technology of the Naoxueling capsules is reasonable and feasible,which provides evidences for the industrial manufacture.

关键词： Naoxueling capsule extraction total flavones tanshinone ⅡA astragaloside

Comparative Analysis of Bioactive Components of Polygonatum cyrtonema Hua from Different Areas

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Agricultural Science & Technology 2020年第4期21卷 50-57页

作者： WANG Dan ZHANG Hong LIU Jia-li MAN Qi DONG Xin-rong LIU De-ming HUANG Li-xin College of Science Hunan Agricultural UniversityChangsha 410128PRC Testing and Analysis Center Hunan Agricultural UniversityChangsha 410128PRC Hunan Chongshuntang Technology Co.LTD Changsha 410208PRC

Polygonatum cyrtonema Hua from five different areas was used as experimental material,total saponins and total *** analysis method was used to compare those *** results showed that the contents of Polygonatum polysaccharides from different areas were in the range of 8.09%~11.78%,whereas the content of total saponins and total flavonoids was quite different,which were 2.73%~5.01%and 0.21%~0.71%,*** general,these Polygonatum samples had higher polysaccharide content with obvious differences for the contents of total saponins and a low contents of flavones.

关键词： Polygonatum Polysaccharide total saponin total flavones

Extraction Storage and Qualitative Analysis of Free Radicals Scavenging Substances from Sweet Potato Leaves

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Agricultural Science & Technology 2008年第2期9卷 1-5,9页

作者：王友升董银卯宋彦黑维俭北京工商大学北京市植物资源研究开发重点实验室

[ Objective ] The research aimed to provide reference for the application of extracts from sweet potato leaves in anti-aging cosmetics. [ Method ] The extraction and storage conditions for free radicals scavenging substances from sweet potato leaves were optimized by orthogonal test and the bioactive components in extracts were investigated by correlation analysis. [ Result] Sweet potato leaves contain the bioactive substances scavenging DPPH free radical and hydroxyl free radical. Extracting solvent species is the most important factor that influencing extraction yield. The optimal extraction and storage conditions are as following： water as solvent, pH 8.0 of extracting liquid, storage at 25 ℃. There is a good positive linear relationship between the content of total phenols in sweet potato leaves and corresponding scavenging rates against both the DPPH free radical and hydroxyl free radical. For the content of total flavones in sweet potato leaves, just a correlation with scavenging rate against hydroxyl free radical shown in test. [ Conclusion] The phenols in ex- tracts could effectively scavenge both the DPPH free radical and hydroxyl free radical, whereas the flavones in extracts can only function on the hydroxyl free radical.

关键词： Sweet potato leaves Free radicals scavenging total phenol total flavones

Analysis of Flavone Content in Honey of Pomegranate Flowers

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Agricultural Science & Technology 2013年第1期14卷 166-168页

作者：卢焕仙梁铖张学文赵洪木余玉生宋文菲王艳辉云南省农业科学院蚕桑蜜蜂研究所云南蒙自661101

[Objective] The aim was to analyze content of flavones in honey of pomegranate flowers. [Method] Contents of total flavones in 24 honey samples of pomegranate flowers from Mengzi City in 2011 and 2012 were measured as per- spectrophotometry method with acetone as an extractant and rutin as a control. [Result] The average content of flavones in honey of pomegranate flowers was at （2.36±1.36）mg/100 g in 2011 and significantly higher than that in 2012 at （1.71± 0.53）mg/100 g. Analysis was conducted on flavones content in different batches and the results indicated that content of flavones in honey in different batches changed from increasing to decreasing, namely, the content was maximal in peak flowering stage, followed by late flowering stage and initial flowering stage. [Conclusion] The research provides references for development, use and function exploration of the honey of pomegranate flowers.

关键词： Extract Honey in pomegranate flowers total flavones Spectrophotome- try Anthesis