Development of a Multimethod for the Determination of Photoinitiators in Beverage Packaging

• Published in: Journal of food science Vol. 73; no. 2; pp. C92 - C99
• Main Authors: Sanches-Silva, A, Pastorelli, S, Cruz, J.M, Simoneau, C, Paseiro-Losada, P
• Format: Journal Article
• Language: English
• Published: Malden, USA Blackwell Publishing Inc 01.03.2008; Institute of Food Technologists; Wiley Subscription Services, Inc
• Subjects: Beverages; Beverages - analysis; Biological and medical sciences; chemical analysis; chemical composition; Chemicals; Chromatography, High Pressure Liquid; detection; Dose-Response Relationship, Drug; Food Contamination - analysis; Food industries; Food packaging; Food Packaging - instrumentation; Food processing industry; Food science; Fruit and vegetable industries; fruit juice; Fundamental and applied biological sciences. Psychology; General aspects; Handling, storage, packaging, transport; Ink; Methods; new methods; packaging materials; packaging materials migration; paperboard; Photochemistry; photoinitiators; printing inks; Ultraviolet Rays; food packaging; photoinitiators; Development; Packaging; Fruit product; Conditioning; Beverage; Fruit juice; Food
• ISSN: 0022-1147; 1750-3841
• DOI: 10.1111/j.1750-3841.2007.00642.x

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.