RESUMO
OBJECTIVE: To investigate the effect of different habitats on rhubarb quality. METHOD: The rhubarb samples from various parts of Qinghai province were analysed by fingerprint. RESULTS AND CONCLUSION: The distribution and quality of wild Tangute rhubarb is better than Palmate sorrel rhubarb. The quality of high altitude sampes are better than low altitudes. The quality which from the grassland of plateau is better than chestnut soil area's, and the wild is better than that of planting.
Assuntos
Ecossistema , Plantas Medicinais/crescimento & desenvolvimento , Rheum/crescimento & desenvolvimento , Solo , Altitude , Biomassa , China , Clima , Rheum/classificação , Estações do Ano , TemperaturaRESUMO
A novel, accurate and valid fingerprint method was developed by using high-performance liquid chromatography-photodiode array detection (HPLC-DAD) to control the quality of Rheum tanguticum Maxim. ex Balf. By comprehensively comparing chromatograms of all samples, our result revealed that the chromatographic fingerprint we developed combining similarity evaluation could efficiently identify and distinguish raw materials of R. tanguticum from different sources. Besides, 21 characteristic peaks in chromatogram of R. tanguticum were unambiguously confirmed by comparison of reference compounds based on their retention time (t(R)) and UV spectra.