Correlation between Partition Coefficients Food Simulant/Paper, K_{F, P}, and Octanol/Water, K_{O,W -} A New Approach in Support of Migration Modeling and Compliance Testing

Abstract:

An investigation on the migration of various migrants from paper (board) into solid food simulants was undertaken to determine the correlation of partition coefficients between food simulants / paper, K_F,P, and octanol/water, K_O,W. The migration tests were carried out using four solid food simulants (rice powder, milk powder, white sugar and rice) in contact with a kind paper which was spiked with 5 compounds. These model migrants cover a wide range of potential migrants in paper (board) food packaging materials and can be characterized by octanol/water partition coefficients ranging from log K_O,W = 2.293 to 4.496. In all simulants a correlation of increasing log K_{O, W} with increasing log K_F,P was found. Using the correlation line as a calibration curve, log K_{F, P} can be predicted from the log K_{O, W} values of the migrants for a given food stimulant. This approach is a new estimation procedure to obtain K_{F, P} values from easily accessible K_O,W values which can significantly reduce the efforts for compliance assessment by minimizing time and costs to be spent compared to carrying out an enormous number of specific migration test. Furthermore, this approach will support experimental migration testing since it provides a method to determine which simulant is appropriate for a given foodstuff.

• Periodical: Applied Mechanics and Materials (Volume 469)
• Pages: 440-443
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.469.440
• Online since: November 2013
• Authors: Mei Gui Xue*, Shuang Fei Wang
• Keywords: Food Simulants, Migration Test, Paper Packaging, Partition Coefficient

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