Journal
BIOMEDICAL CHROMATOGRAPHY
Volume 33, Issue 12, Pages -Publisher
WILEY
DOI: 10.1002/bmc.4690
Keywords
HPLC fingerprint; polyphenols; pomegranate peel; quantitative determination; similarity evaluation; triterpenes
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Funding
- National Natural Science Foundation of China
- Scinece and Technology Planning Project of Urumqi [81260668 G161320011]
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Traditionally, pomegranate (Punica granatum L.) has been consumed as fresh fruit or as pomegranate juice. Pomegranate peel, the dried husk of P center dot granatum, is an important herbal medicine for treating diarrhea, hemostasis and insect-induced abdominal pain in China. However, the quality control methods for pomegranate peel remain unsatisfactory. In this work, a new HPLC-based qualitative and quantitative method for quality control of pomegranate peel was developed and validated for the simultaneous determination of polyphenols and triterpenes (including punicalagins A and B, ellagic acid, oleanolic acid and ursolic acid) by solvent extraction and ratio blending method in tandem with wavelength switching. The average recoveries were 98.07-100.61% with relative standard deviation no more than 4.27%. In addition, the fingerprint analysis was conducted to interpret the consistency of the quality test. Thirteen characteristic peaks were selected to evaluate the similarities of 16 batches of pomegranate peel. The similarities of samples were all more than 0.80, indicating that the samples from different areas of China were consistent. The results demonstrated that quantitative analysis and the HPLC fingerprint as a characteristic distinguishing method combining similarity evaluation can be successfully used to assess the quality and to identify the authenticity of pomegranate peel.
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