The Influence of High-pressure Processing on the Migration of Irganox 1076 from Polyethylene Films

Abstract

This study investigated the influence of high-pressure processing (HPP) on the migration of Irganox 1076 from low-density polyethylene films to 10 and 95% ethanol as food simulants. Pouches made from the low-density polyethylene films were pressured at 600 and 800 MPa for 5 min at 25 and 75 C. Control samples were not high-pressure processed. The mass transfer of Irganox 1076 from the films towards the ethanol was monitored over a 40-day period and quantified using a high-performance liquid chromatography method. The results showed a lower level of Irganox migration from the films to the ethanol at lower when compared with higher pressure treatments. At the processing temperature of 75 C, the migration appeared higher when compared with the samples treated at 25 C. The migration in the HPP samples was higher than that of the controls. The results of this study showed that HPP at higher temperatures caused a higher level of chemical migration from polyethylene when compared with samples not treated by this technique.

The efficacy and safety of high‐pressure processing of food

“…In the four studies on the migration into food simulants (Lambert et al., 2000b; Caner and Harte, 2005; Mauricio‐Iglesias et al., 2010; Yoo et al., 2014), specific and overall migration after HPP and storage was not significantly changed with respect to the untreated control samples. Except for one experiment, the migration was not tested immediately after HPP and, therefore, any impact of HPP may not have become apparent, being masked by the migration during the far longer storage period.…”

“…In some studies (Lambert et al., 2000b; Rivas‐Canedo et al., 2009a,b; Yoo et al., 2014), the applied HPP conditions (up to 600 MPa and up to 25°C) were in the range currently used commercially, while in others (Caner and Harte, 2005; Mauricio‐Iglesias et al., 2010; Yoo et al., 2014), they were higher (up to 800 MPa and up to 115°C). The HPP treatment lasted 5–10 min (Caner and Harte, 2005; Rivas‐Canedo et al., 2009a,b; Mauricio‐Iglesias et al., 2010; Yoo et al., 2014), except 30 min in one report (Lambert et al., 2000b).…”

“…The simulants used were according to the Commission Regulation (EU) No 10/2011. 12 Specific migration of two additives was followed for the monolayers: (i) the antioxidant octadecyl‐3‐(3,5‐di‐tert‐butyl‐4‐hydroxyphenyl)‐propionate, MW = 531 Da (Caner and Harte, 2005; Mauricio‐Iglesias et al., 2010; Yoo et al., 2014) and (ii) the light stabiliser 2,5‐thiophenediylbis(5‐tert‐butyl‐1,3‐benzoxazole, MW = 431 Da (Mauricio‐Iglesias et al., 2010). Overall migration was monitored for the multilayers.…”

“…Six studies were scored as suitable for this assessment. Either pouches were made with the studied polymers, filled with food simulant, submitted to HPP and then stored under defined T/t conditions (Lambert et al., 2000b; Caner and Harte, 2005; Yoo et al., 2014), or polymer strips were immersed in food simulant (Mauricio‐Iglesias et al., 2010), or polymers were in contact with food (Rivas‐Canedo et al., 2009a,b) and subjected to HPP followed by storage. The migration levels, measured in the simulants or derived from the amount lost from the film, were compared with the migration results from control samples that were similarly treated, but without undergoing HPP.…”

Effect of High Pressure Processing on Migration Characteristics in Polymer Films

“…Yoo et al (40) also evaluated the influence of HPP on the migration of Irganox 1076 from LDPE films into 10 and 95% ethanol. Pouches manufactured from the LDPE films were exposed to pressures of 600 and 800 MPa for 5 min at 25 and 75°C, and subsequently stored at 25°C for up to 40 days.…”