Your browser doesn't support javascript.
Mostrar: 20 | 50 | 100
Resultados 1 - 3 de 3
Mais filtros

Base de dados
Intervalo de ano de publicação
Zhong Yao Cai ; 39(2): 281-3, 2016 Feb.
Artigo em Chinês | MEDLINE | ID: mdl-30080348


Objective: To identify mountain cultivated ginseng using a digital method. Methods: Image information of mountain cultivated ginseng was processed using the Matlab 2014 a software box. Based on the shape, color and texture features,18 image information from ginseng rhizome, body, grain, peel, fibrous root, were extracted and a digital mountain cultivated ginseng database model was established. Results: Digital identification based on image processing could be met by the features obtained from mountain cultivated ginseng. The recognition rate of ginseng was 96%. Conclusion: A lot of information from ginseng were extracted based on image processing. A fast and accurate digital identification of mountain cultivated ginseng is achieved successfully undamaged.

Zhongguo Zhong Yao Za Zhi ; 40(4): 700-3, 2015 Feb.
Artigo em Chinês | MEDLINE | ID: mdl-26137693


The HPLC method was established to simultaneously determine the contents of myricetin, luteolin, apigenin and kaempferol in Wikstroemia indica ( L. ) C. A. Mey. The method was carried out on a Diamonsil C18 column (4. 6 mm x 250 mm, 5 µm) eluted with the mobile phases of water containing 0.15% phosphoric acid and acetonitrile in gradient mode. The UV detection wavelength was 365 nm. The flow rate was 1.0 mL · min(-1) and the column temperature was set at 30 °C. All the standard compounds showed a good linearity in the range of 0.100 8-1.008 (r = 0.999 2), 0.484 8-4.848 (r = 0.999 0) , 1. 354-13. 54 (r = 0.999 6), 0.316 8-3.168 mg · L(-1) (r = 0.999 0) for myricetin, luteolin, apigenin and kaempferol, respectively. The average recoveries of these four flavonoids were 98.5%, 100.9%, 99.7% and 98.9% with RSD 1.2%, 1.7%, 0.81% and 1.6%, respectively. In conclusion, the method is simple, rapid and accurate. It can be applied for the quality control of Wikstroemia indica.

Cromatografia Líquida de Alta Pressão/métodos , Medicamentos de Ervas Chinesas/análise , Flavonoides/análise , Wikstroemia/química
Zhong Yao Cai ; 36(2): 213-6, 2013 Feb.
Artigo em Chinês | MEDLINE | ID: mdl-23901645


OBJECTIVE: To establish the fingerprint of mountain cultivated ginseng by HPLC and compare the fingerprint with that of wild ginseng for the quality control. METHODS: The analysis was carried out on a ZORBAX Eclipse XDB-C18 column (150 mm x 4.6 mm, 5 microm) with a mobile phase consisting of water-acetonitrile with gradient elution, and the flow rate was 1 mL/min. The column temperature was set at (30 +/- 0.15) degrees C and UV detection wavelength was set at 203 nm. RESULTS: There were 15 common peaks in the fingerprint of mountain cultivated ginseng. The similarities of 10 batches ginseng were between 0.90 and 1.00. CONCLUSION: This method has good characteristics and specificity, and could be used for quality control of mountain cultivated ginseng. The type and content of components in wild ginseng were slightly higher than those in mountain cultivation ones.

Cromatografia Líquida de Alta Pressão/métodos , Medicamentos de Ervas Chinesas/análise , Panax/química , Estabilidade de Medicamentos , Medicamentos de Ervas Chinesas/normas , Etanol/química , Panax/crescimento & desenvolvimento , Raízes de Plantas/química , Controle de Qualidade , Reprodutibilidade dos Testes