Preparation and characterization of 1,3-dioleoyl-2-palmitoylglycerol

J Agric Food Chem. 2011 May 25;59(10):5714-9. doi: 10.1021/jf200398f. Epub 2011 May 4.

Abstract

1,3-Dioleoyl-2-palmitoylglycerol, an important triacylglycerol in infant formulas, was effectively enriched by a two-step process: (a) dry fractionation of leaf lard and (b) enzymatic acidolysis of the fractionated leaf lard. In step a, the 1,3-dioleoyl-2-palmitoylglycerol content was increased from 16.77 to 30.73% after programmed temperature treatment of the leaf lard at 60 °C for 20 min followed by 34 °C for 10 h. In step b, 43.72% of the 1,3-dioleoyl-2-palmitoylglycerol content was obtained at the optimal conditions of enzymatic acidolysis: a substrate molar ratio of 1:4 (the fractionated leaf lard/camellia oil fatty acids), 6% (w/w) of enzyme loading, and 6 h of reaction time at 45 °C. On the basis of gas chromatography determination and "deducting score" principle, a model was properly established for characterizing the quality of triacylglycerols enriched with 1,3-dioleoyl-2-palmitoylglycerol. This approach would be a valuable contribution in structured lipids industries because only gas chromatography determination was involved.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Camellia / chemistry
  • Chemical Fractionation
  • Dietary Fats / metabolism
  • Fatty Acids / metabolism
  • Humans
  • Infant
  • Infant Formula / chemistry
  • Lipase / metabolism
  • Swine
  • Triglycerides / biosynthesis*
  • Triglycerides / chemistry

Substances

  • Dietary Fats
  • Fatty Acids
  • Triglycerides
  • Lipase
  • lard
  • 1,3-dioleoyl-2-palmitoylglycerol