Evaluation of polyphenol contents in differently processed apricots using accelerated solvent extraction followed by high-performance liquid chromatography-diode array detector

Int J Food Sci Nutr. 2011 Nov;62(7):729-39. doi: 10.3109/09637486.2011.573469. Epub 2011 May 20.

Abstract

Concentrations of 17 polyphenols in ripe-fresh, sun-dried and sulfited-dried apricots either harvested from organic or pesticide-treated trees before harvest were determined using reverse-phase high-performance liquid chromatography with UV-Vis diode array detector, and the change of polyphenol profile with origin of the apricot product was established. Extraction of polyphenols was achieved using the accelerated solvent extraction technique (ASE). A mixture of methanol, water (70:30 v/v) including 0.1 g of tert-butylhydroquinone as solvent, 60 min extraction time, 60°C temperature and 1,500 psi pressure were found the most productive operating conditions for ASE. Concentrations of polyphenols in organic apricots were higher than pesticide-treated samples, and roughly the same in ripe-fresh and sun-dried apricots. Polyphenol concentrations of either organic or pesticide-treated sulfited-dried apricots were lower than the ripe-fresh apricots. Considering the organic ripe-fresh apricots, there was a decrease in some polyphenol concentration in the sulfited-dried apricots compared with the ripe-fresh apricot, and the range of decrease is between 1.4 and 53%.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Agriculture / methods*
  • Chromatography, High Pressure Liquid / methods
  • Desiccation
  • Food Handling / methods*
  • Food, Organic / analysis
  • Fruit / chemistry*
  • Pesticides / analysis
  • Plant Extracts / chemistry*
  • Polyphenols / analysis*
  • Prunus / chemistry*
  • Sulfites
  • Trees

Substances

  • Pesticides
  • Plant Extracts
  • Polyphenols
  • Sulfites