The aim of this paper is to study the interactions between packaging and food. For that purpose, additives were first characterized. Kinetic studies of their specific migrations have been carried out by using different analytical methods such as gas chromatography, Fourier transform infrared spectroscopy, atomic absorption spectrometry and differential scanning calorimetric analysis. The influence of various parameters such as temperature, agitation, nature of food simulant and initial concentration of plasticizer was considered.
The aim of this paper is the determination of the specific migration of an organotin heat stabilizer (Irgastab 17 MOK) from rigid poly(vinyl chloride) (PVC) into food simulants. For that purpose, two fatty simulants were used: hexane and ethanol. The test conditions were 15 d at 4 and 40 C and 3 h at 70 C. The rate of the mass loss of the films was followed as a function of time. FTIR spectroscopy was used to investigate the migration phenomena and to estimate the diffusion coefficients and the activation energy of diffusion by using mathematical models. The influence of various parameters such as temperature, time of contact and the nature of food simulant was considered. The results show that FTIR spectroscopy is a simple, low cost and rapid method which can be used to investigate the migration phenomena.
Abstract. The aim of this paper is the determination of the specific migration of a plasticizer and an organotin heat stabilizer (IRGASTAB 17 MOK) from plasticized and rigid PVC into organic liquids, hexane and ethanol simulating fatty food. The migration test conditions were 10 days at 40°C and 2 hours at 70°C. FTIR and UVVisible at 490 nm spectroscopy and gas chromatography were used to investigate the migration phenomena. The influence of various parameters such as temperature time of contact and the nature of food simulant were considered. The results show that plasticizer accelerates the heat stabilizer migration. On the other hand that gas chromatography could be substituted by FTIR spectroscopy to investigate the DBP migration phenomena. It is a simple, low cost and rapid method which can be used.
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