Abstract:
OBJECTIVE To provide a scientific basis for the identification and authenticity of
Gastrodia elata B1., by constructing a HPLC fingerprint of the chemical components of
Gastrodia elata B1., combining with multivariate statistical methods to compare
Gastrodia elata B1. from different origins.
METHODS HPLC was developed for the determination of chemical fingerprint of
Gastrodia elata in different regions. Shiseido CAPCELL PAK Ⅱ MG C
18 chromatographic column (250 mm×4.6 mm, 5.0 mm) was used with column temperature 30℃, methanol-0.05% phosphoric acid aqueous solution as mobile phase, gradient elution and analysis time 35 min, velocity 1.00 mL·min
-1, sample quantity 10 mL, detection wavelength 220 nm. The 79
Gastrodia elata samples from different origins were tested. Similarity evaluation system software(2012 edition) was used for fingerprint information statistics of contained component peak area, and SPSS 23.0 statistical software was used for principal component analysis and cluster analysis.
RESULTS Gastrodia elata samples from different producing areas had good consistency. By constructing the HPLC fingerprint of
Gastrodia elata, principal component analysis and cluster analysis, the samples of
Gastrodia elata could be divided into Yunnan and non-Yunnan
Gastrodia elata.
CONCLUSION The results showed that the fingerprint technique could provide scientific basis for the identification of
Gastrodia elata origin and the authenticity of
Gastrodia elata.