Evaluation of Oxygen Absorbers Using Food Simulants and Inductively Coupled Mass Spectrometry

Autor: Seung-Yeon Oh, Eun-Ji Kang, Kyung-Jik Lim, Yoon-Hee Lee, Han-Seung Shin
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Foods, Vol 12, Iss 19, p 3686 (2023)
Druh dokumentu: article
ISSN: 2304-8158
DOI: 10.3390/foods12193686
Popis: In this study, we developed and validated an analytical method to evaluate the heavy metal elution from an active packaging material’s oxygen absorber to a food simulant. Using water, 4% acetic acid, n-heptane, 20% ethanol, and 50% ethanol as food simulants, we quantified cobalt, copper, platinum, and iron with inductively coupled plasma-mass spectrometry. The method was thoroughly validated for linearity, accuracy, precision, LOD, and LOQ through inter-day and intra-day analysis repetitions. R2 values ranged from 0.9986 to 1.0000, indicating excellent linearity. The LOD values ranged from 0.00002 to 0.2190 mg/kg, and the LOQ values ranged from 0.00007 to 0.6636 mg/kg. The method’s accuracy was 95.14% to 101.98%, with the precision ranging from 0.58% to 10.37%. Our results confirmed the method’s compliance with CODEX standards. Monitoring the oxygen absorber revealed undissolved platinum, cobalt levels from 0.10 to 19.29 μg/kg, copper levels from 0.30 to 976.14 μg/kg, and iron levels from 0.06 to 53.08 mg/kg. This study established a robust analytical approach for evaluating the heavy metal elution from oxygen absorbers, ensuring safety in the food industry.
Databáze: Directory of Open Access Journals