Comparison and multivariate statistical analysis of anthocyanin composition in Lycium ruthenicum Murray from different regions to trace geographical origins: The case of China

Food Chem. 2018 Apr 25:246:233-241. doi: 10.1016/j.foodchem.2017.11.030. Epub 2017 Nov 10.

Abstract

Anthocyanin composition in forty-five Lycium ruthenicum Murray (LRM) samples grown in China was identified by high-performance liquid chromatography-electrospray ionisation-mass spectrometry (HPLC-ESI-MS) and quantified by HPLC with a diode array detector (HPLC-DAD). The results showed that the overall pattern of anthocyanin composition of LRM from different provinces was the same, while the individual and total anthocyanin concentrations, were significantly different, indicating an important impact of geographical origin on anthocyanin composition, which can be considered as credible indices for LRM classification. Principal component analysis (PCA) and linear discriminant analysis (LDA) were applied to develop discrimination models for the anthocyanin concentrations. PCA clearly separated the LRM based on its geographical origins. LDA satisfactorily categorized the samples by providing a 100% success rate based on geographical origins. The results obtained could be used to trace the geographical origin of LRM.

Keywords: Acetonitrile (PubChem CID: 6342); Anthocyanin composition; Cyanidin 3-glucoside (PubChem CID: 197081); Formic acid (PubChem CID: 284); Linear discriminant analysis; Lycium ruthenicum Murray; Methanol (PubChem CID: 887); Multivariate statistical analysis; Principal component analysis.

Publication types

  • Comparative Study

MeSH terms

  • Anthocyanins / analysis*
  • China
  • Chromatography, High Pressure Liquid / methods
  • Discriminant Analysis
  • Lycium / chemistry*
  • Multivariate Analysis
  • Plants, Medicinal / chemistry*
  • Principal Component Analysis
  • Spectrometry, Mass, Electrospray Ionization / methods*

Substances

  • Anthocyanins