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At least 613 records · Page 34Linked to original sources
PubMed2004

[Resource and pharmacognostical study on Aralia echinocaulis].

OBJECTIVE: To provide fundamental information for its exploiting. Aralia echinocaulis by the resource and identification study on. METHOD: Resource survey and various identification were carried out. RESULT: The county level distribution and ecological environment of A. echinocaulis were initially observed. It mainly distributed in the mountainous areas of the Yangtze River basin and the south, and was usually used as folk drug. This study also displayed its morphological, microscopic and chemophysical identification features. CONCLUSION: The morphological features of original plant and crude drug, and the anatomical and chemophysical characteristics of A. echinocaulis are of identification value, and the species are also of greater development and utilization potentiality, but the resource does not support the sustainable utilization. Therefore, artificial propagation is apparently crucial to its exploitation.

Aralia↗
PubMed2005

[Pharmacognostic studies on Desmodium gyrans].

OBJECTIVE: To study the characteristic features of Desmodium gyrans in order to provide a basis for rational exploitation and utilization of the herb. METHOD: Samples of the title plant were collected, the microscopic features of cross sections and powders were studied. TLC profiles and UV absorption of the plant extract were examined. RESULT: Calcium oxalate crystals were found in cells of transverse sections. Nonglandular hairs were observed on leaf surfaces. Characteristic peaks in the UV spectrum were identified. CONCLUSION: The distinct characteristic features revealed in this studies can serve as evidence for the identification of D. gyrans.

Chromatography, Thin Layer↗
PubMed2005

[Studies on quality standard of Peucedanum praeruptorum].

OBJECTIVE: To establish a quality standard of Peucedanum praeruptorum for Chinese Pharmacopoeia (2005). METHOD: The presence of (+/-)-praeruptorin A were identified and assayed by TLC and HPLC, respectively. RESULT: Linearity of marker was obtained over the range of 0.17696-0.88480 microg (r=0.9999). The average recovery rate was 99.72% (RSD=0.40%). CONCLUSION: TLC is specific. The method of quantity is accurate, reappearance, simple, rapid, and suitable for the quality control of P. praeruptorum.

Apiaceae↗
PubMed2004

[Medicinal plant resources of the Chinese endemic genera of seed plants].

OBJECTIVE: To survey medicinal plant resources of the Chinese endemic genera of seed plants. METHOD: On the basis of herbarium, we studied on more than 800 specimens of the medicinal plant from Chinese endemic genera of seed plants and reviewed literature. RESULT: There are 67 genus, 78 species, 3 varitas in medicinal plant from the Chinese endemic genera of seed plants, which belong to 41 family. Their habitat and medicinal value are provided. CONCLUSION: Medicinal plant resources of the Chinese endemic genera of seed plants should be actively protected and widely utilized.

China↗
PubMed2005

[A study on quality standard for Herba Siegesbeckidae].

OBJECTIVE: To establish the qualitative and quantitative methods of Herba Siegesbeckiae. METHOD: A TLC method was used for qualitative identification and a HPLC analysis was applied for quantitative determination of Herba Siegesbeckiae with kirenol as the reference substances. RESULT: Chloroform-methanol-formic acid (25:5:1) as a mobile phase of TLC, the spot of kirenol can be easily detected; Methanol extracts of Herba Siegebeckiae were separated on a Polaris C18 column with acetonitrile-water (25:75) as mobile phase and kirenol was separated well. The average content of kirenol in Herba Siegebeckiae was 0.14%. A good linear relationship between the peak areas and injected amounts of kirenol in the range of 0.19-14.9 microg and the average recovery was 100.0% (RSD = 2.4%). CONCLUSION: The method can be used for qualitative identification and quantitation determination of Herba Siegesbeckiae.

Asteraceae↗
PubMed2005

[Analysis on the geologic background and physicochemical properties of soil for the cultivation of Panax notoginseng in Yunnan province].

OBJECTIVE: To study the relationship between the geo-authentic and geologic background system (GBS) and physicochemical properties of soil for the cultivation of Panax notoginseng. METHOD: The physicochemical properties of soil were analyzed, the geologic background system between producing areas of Yunnan and Guanxi of P. notogiseng was compared. RESULT: The distribution of P. notoginseng was restricted by GBS, The yellow-red soil of fragmentary rock mixed with carbonate seems to be most suitable for the growth. CONCLUSION: The most suitable soil for growing P. notoginseng is the neutral or weakly acidic soil with loam clay, particularly that with low base saturation percentage.

China↗
PubMed2004

[Morphological and microscopical identification of Murraya kwangsiensis].

OBJECTIVE: To identify medical plant Murraya kwangsiensis by its tissue characters. METHOD: Morphological characters and microstructure of this plant were described and illustrated. RESULT: Oil cell, fiber cell and calcium oxalate prism were found in its tissue. CONCLUSION: Tissue characters can be taken into account of developing basis for quality standard of this medical plant.

China↗
PubMed2005

[Effects of seeding and sowing methods on the yields of root tubers of Curcuma longa].

OBJECTIVE: To provide a scientific basis for standardizing the cultivation method for Curcuma longa. METHOD: Plant heights and seeding numbers were sampled periodically, the plot yields were counted a tharvested. RESULT: The effects of seeding method on yields, plant height and number were significant. The effects of different sowing ways on the yields were very little. CONCLUSION: The hole seeding method using mother tuber or blastostyle bearing three to four knots was shown to be the best may, worthy to be widely applied in production.

Curcuma↗
PubMed2005

[Sabina przewalskii community structure in the upper reaches of Minjiang River].

In this paper, the physiognomy and the structure of Sabina przewalskii community were studied by sample plot method. The results showed that in the life spectrum of the community, hemicryptophyte was dominated, but therophytes also occurred frequently, which presented some features of temperate vegetation. The vertical structure of the community was quite simple, consisting of tree layer, shrub layer and herb layer, and there were no interstratum plants and ground layer. Sabina przewalskii was the only species in the tree layer. In fruticose stratum, the important value of Spiraea alpina was 153.3, ranking the first; while in herb layer, the important value of Carex caespifosa ranked the first, amounting to 36.8. Among the three plot groups on different slopes, spiny-shrubs such as Berberis wilsonae and Caragana erinacea grown on small slope were more than those on bigger slope, so did unpalatable grasses such as Pedicularis axillaries and Artemisia tauguticat, which mainly owed to retrogressive succession caused by frequently grazing. The age and height structures of Sabina przewalskii population indicated a declining trend, and the community would develop retrogressively if disturbances (e.g., grazing) could not be reduced. The disturbance caused by livestock was more obvious in the plot group on small slope than on bigger slope, and livestock mainly destroyed seedlings and small trees, which made tree population be impossible to regenerate. The coverage of upper layers had a notable impact on the lower layers, and there wasn't any correlation between coverage and diversity index (Shannon-Wiener Index) in each layer.

Ecosystem↗
PubMed2005

[Studies on fingerprint spectrum of Radix Sophorae Tonkinensis from Guangxi].

OBJECTIVE: To set up the fingerprint spectrum of Radix Sophorae Tonkinensis from Guangxi province. METHODS: HPLC with UV detector was used to analyze matrine and oxymatrine the patterns of Radix Sophorae Tonkinensis from Guangxi province. RESULTS: The fingerprint spectrum of Radix Sophorae Tonkinensis from Guangxi province was set up. Furthermore, the fingerprint spectrum showed an excellent correlation, and all the parameters of the main co-peaks met the requirements for State Drug Administration's technical regulations on the herb. CONCLUSION: The studies are useful for the standard planting and the quality control of Radix Sophorae Tonkinensis from Guangxi province.

Alkaloids↗
PubMed2005

[Analysis of Chinese drug beimu and its fake species with clustering analysis and FTIR spectra].

OBJECTIVE: To identify Chinese drug Beimu from its fake species. METHOD: IR spectra was obtained by Fourier Transform Infrared Spectroscopy (FTIR) and clustering analysis was adopted for authentication. RESULT: There were significant differences between Beimu and its fake species. CONCLUSION: The established method was quick, sensitive and accurate. It could be used for the differentiation of different species of Beimu materials and their fake species.

China↗
PubMed2005

[Identification on Herba Hedyotidis by HPLC fingerprint pattern method].

OBJECTIVE: To establish a new identification and analysis method of Herba Hedyotidis. METHOD: HPLC fingerprint pattern method. RESULT: Experiment and analysis were carried out on seven samples, the standard HPLC fingerprint pattern method and characterisitic diffraction peaks of Herba Hedyotidis were obtained. CONCLUSION: This method can be used for the identification of Herba Hedyotidis.

Chromatography, High Pressure Liquid↗
PubMed2005

[Species and distribution of the medicinal plants peculiar to Guizhou].

OBJECTIVE: To review the species and distribution of the medicinal plants peculiar to Guizhou and provide evidence for application, protection and collection. METHOD: Open-air investigation, data collection and specimen identification. RESULT: More than eighty kinds of the medical plants peculiar to Guizhou have been identified. CONCLUSION: Guizhou has a diversity of medicinal plants. The area of distribution of most species is restricted and the population is small. Some of the species have higher medicinal and scientific research values.

Berberis↗
PubMed2005

[Identification of categories of Radix Rehmannia by IR spectroscopy and compare software].

OBJECTIVE: To identify the categories of Radix Rehmannia between the wild and the planting, different stored time, (gained in 2000,2002) , trueborn place (Henan) and no-trueborn places. METHODS: FTIR combined compare software, and the data was dealt with the means of normalization in computer. RESULT: The wild and the planting have evident difference. They can be identified for the different stored-time completely. The identification percentage between trueborn place and no-truedborn places is more than 90%. CONCLUSION: The method is fast, accurate.

Drug Storage↗
PubMed2005

[Microscopic identification of medicinal species of Acorus].

A study on the identification of commercial drugs of medicinal species of Acorus collected from 10 different areas had been carried out. The result showed that the commercial drugs were mainly derived from three species, i. e., Acorus tatarinowii, A. calamus L. and A. macrospadicesu (Yamamoto) F. N. Wei et Y. K. Li. With the digital imaging technique, the paper visually reflected the microscopic structures of medicinal plants of Acorus, and can be used for identifying the market drugs.

Acorus↗
PubMed2005

[The sustainable development framework of national Chinese medicine resources].

The sustainable development of Chinese medicines resources is a key point for the modernization of traditional Chinese medicine. This paper put forward the concept, main tasks and characteristics on the sustainable development of Chinese medicine resources, and analyses the current situation and problems in China. It has explained the basic principle and the sustainable development framework of Chinese medicines resources. The framework consisted of 4 parts: the research system, protection and control system, evaluation index system and development system. It provided external scientific standard for the research of the sustainable development on Chinese medicine resources.

China↗
PubMed2005

[Study on producing area suitability of genuine traditional Chinese drugs].

The discussion centered primarily on background, basis and research ways of the study on producing area suitability of genuine traditional Chinese drugs in this paper. The authors expounded application and development of the used modem techniques. The direction and strategy of producing area suitability of genuine traditional Chinese drugs for the future were proposed and prospected aiming to provide with scientific thoughtway and guiding later production and practice.

Climate↗