Characterization of fatty acids, triacylglycerols, phytosterols and tocopherols in peony seed oil from five different major areas in China

Food Res Int. 2020 Nov:137:109416. doi: 10.1016/j.foodres.2020.109416. Epub 2020 Jun 9.

Abstract

Peony (Paeonia lactiflora pall) is a unique plant in China, which is planted on a large scale in different areas. The study characterized the triacylglycerol (TAG), fatty acid (FA), phytosterol, and tocopherol in peony seed oil (PSO) from five cultivation areas in China. The FAs in PSO were mainly C18 fatty acyl chains, especially α-linolenic acid (C18:3n-3). The triacylglycerol of PSO was identified by UPLC-Q-ToF/MS, and the predominant TAGs were LnLnLn, LLnLn, LLLn, LnLO/LLL, and OOLn/OLL. As for the micronutrients, γ-tocopherol and β-sitosterol were main components of tocopherol and phytosterol, respectively. The obtained data were further analyzed by principal components analysis (PCA), which allowed differentiation of five PSOs by their cultivation areas. For the great potential in unsaturated fatty acid and micronutrients, PSO could be a good dietary resource of plant oil.

Keywords: Cultivation areas; Peony seed oil; Phytosterol; Tocopherol; Triacylglycerol; α-linolenic acid.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • China
  • Fatty Acids
  • Paeonia*
  • Phytosterols*
  • Plant Oils
  • Tocopherols
  • Triglycerides

Substances

  • Fatty Acids
  • Phytosterols
  • Plant Oils
  • Triglycerides
  • Tocopherols