Development of a multimethod for the determination of photoinitiators in beverage packaging

J Food Sci. 2008 Mar;73(2):C92-9. doi: 10.1111/j.1750-3841.2007.00642.x.

Abstract

Photoinitiators are ink components used in the printing of food packaging. The aim of the present study was to develop a multimethod for the analysis of photoinitiators in paperboard packages and commercial beverage packages. The proposed method is simple and fairly rapid. Extraction is carried out with acetonitrile. A reverse-phase high performance liquid chromatography (HPLC) method with UV detection was developed to quantify the 6 selected photoionitiators. Total HPLC time analysis was 30 min and the flow-rate was 1 mL/min. Method validation parameters such as linearity and detection limit are reported. Recovery of all photoinitiators (at 1 mg/kg) from orange juice was satisfactory (mean = 88.4%; ranging from 84.6% to 93.4%). Recovery of benzophenone and Irgacure 651 was good (ranging from 85.2% to 98.1% and 86.1% to 92.2%, respectively) at the 4 concentrations studied (0.1, 0.2, 0.5, and 1 mg/kg). Commercial beverage packages were analyzed and when photoinitiators were detected, the beverages were also analyzed.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Beverages / analysis*
  • Chromatography, High Pressure Liquid
  • Dose-Response Relationship, Drug
  • Food Contamination / analysis*
  • Food Packaging* / instrumentation
  • Ink*
  • Paper*
  • Photochemistry
  • Ultraviolet Rays