Long‐time Performance of Bottles Made of PET Blended with Various Concentrations of Oxygen Scavenger Additive Stored at Different Temperatures

Sängerlaub, Sven; Müller, Kajetan

doi:10.1002/pts.2283

Cited by 18 publications

(11 citation statements)

References 58 publications

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“…Common applications include sachets containing the scavenger in powder form that are added to a package and also packaging films (monolayer or multilayer) incorporating the scavenger (Singh et al, 2011 ; Realini and Marcos, 2014 ). Many commercial O 2 scavengers are based on iron, sulfite, or oxidizable polymers and they have been in use since the 1990s (Rooney, 2005 ; Saengerlaub and Mueller, 2017 ). Besides these established systems, the application of polyphenols as O 2 scavengers has gained attention due to their availability from renewable resources and their high O 2 absorption capacity (Wanner, 2010 ).…”

Section: Introductionmentioning

confidence: 99%

Effect of Temperature and Relative Humidity on the Reaction Kinetics of an Oxygen Scavenger Based on Gallic Acid

2018

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Gallic acid (GA) is a potential oxygen scavenger for food packaging applications. In this study we investigated the effect of temperature and relative humidity (RH) on the reaction kinetics of an oxygen scavenger consisting of GA and sodium carbonate. The reaction was described by a second-order kinetic law and the reaction rate coefficient k as well as the scavenger capacity n were determined from experimental data using a multiple-run downhill simplex method. Both the rate coefficient and the scavenger capacity increased significantly with higher temperatures. At 21°C it was shown that both the rate coefficient and the scavenger capacity increased significantly with higher RH. However, below 54% RH, there was no detectable reaction. For optimum scavenger performance we therefore recommend GA-based scavengers for packaging of food products with a high water activity stored at room temperature. Prior to application, the packaging materials with GA-based scavengers can be stored at 21°C and 54% RH without losing their scavenger activity. The results of this study provide the basis for the functional design of active packaging systems with GA-based oxygen scavengers.

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Section: Introductionmentioning

confidence: 99%

Effect of Temperature and Relative Humidity on the Reaction Kinetics of an Oxygen Scavenger Based on Gallic Acid

2018

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“…Figure 8 shows the results of chemical inertia of the samples. The analysis carried out showed a strong sensitivity of all formulations to the aqueous solution containing NaOH (pH [13][14]. This solution is strongly basic.…”

Section: Resultsmentioning

confidence: 99%

“…PET can also be modified by blending or by the addition of oxygen scavengers or coated to improve its barrier properties (. [7][8][9][10][11][12][13][14][15][16] Oxygen barrier as such low as~0.2 cc/cm m À2 atm À1 day À1 can be achieved on PET bottle. However, PET requires accurate drying before being processed and processing temperature very high that seldom is lower than 250 C in injection molding of preforms.…”

Section: Introductionmentioning

confidence: 99%

Injection‐stretch blow molding of poly (lactic acid)/polybutylene succinate blends for the manufacturing of bottles

Aversa

Barletta

Gisario

et al. 2021

J of Applied Polymer Sci

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The stretch blow molding process of plastic preforms is widely used for the manufacturing of bottles in numerous market sectors, with high production volumes and low unit costs. In the sector of alcoholic beverages and, in particular, of wine, plastic bottles are used sporadically. Glass bottles or other economic solutions such as laminated cardboard containers or so-called bagin-boxes are regularly preferred. However, the high ease of use, lightness, recyclability and low cost of plastic materials are the main reasons that are fueling interest especially in wine producers. Poly (ethylene terephthalate) bottles have recently been introduced to the market, although their success has been limited by poor gas impermeability and above all by their recognized high environmental footprint. Barrier can be improved by oxygen scavenger and plasma coating. Environmental footprint is rather low when recycled but that is not well possible with scavenger. Bioplastic materials offer an interesting alternative to fossil-based plastics, combining most of their technical advantages with a lower environmental impact. However, they are more expensive and complex to process. In addition, mechanical and barrier properties are often less than for conventional polymers. In this work, therefore, the development of bioplastic bottles with low gas permeation by stretch blow molding was studied. Poly (lactic acid)-polybutylene succinate blends have been modified by adding additives that obstruct the passage of gaseous molecules through the wall of the bottle. The studies have in particular concerned the extrusion and characterization of bioplastic compounds, the injection molding of preforms, and the blowing of bottles. The results obtained showed that it is possible to obtain low permeation bioplastic bottles, which are an ecological alternative to conventional solutions for packaging.

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“…Moreover, the poly(m-xylene adipamide) MXD6, an efficient oxygen scavenger additive, which acts as passive polymer barrier reducing the oxygen permeation in the PET bottles used for the packaging of beverages and oils [54,55], could be used as AA. However, some authors [21,56] reported that the MXD6 layer can generate non-intentionally added substances (NIAS) in the PET bottles.…”

Section: Studies On Potential Functional Aldehydes Scavangersmentioning

confidence: 99%

Characterization of VOCs and additives in Italian PET bottles and studies on potential functional aldehydes scavengers

Dattilo

Gugliuzzo

Mirabella

et al. 2022

Eur Food Res Technol

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This study focused on characterization of Volatile Organic Compounds (VOCs) as contaminants and non-volatile additives in Italian PET bottles, also suggesting potential functional aldehydes scavengers. Several VOCs, such as acetic aldehyde (AA), butanal, 3-methyl butanal, 1,3-dioxolane, pentanal, hexanal, octanal, 5-hepten-2-one, nonanal, and decanal, were identified by Head Space-Gas Chromatography/Mass Spectrometry (HS-GC/MS) in the PET bottles used for the packaging of six Italian brands mineral waters. AA, 1,3-dioxolane, octanal, 5-hepten-2-one, nonanal, and decanal were the most abundant compounds identified. These contaminants were also identified in the PET-bottled mineral waters. Different experiments using bottle-grade PET pellets (Btlg-PET) and PET bottles’ fragments with and without the addition of epoxidized soybean oil (ESBO) or erucamide as lubricant/plasticizer additives, poly(m-xylene adipamide) (MXD6), and/or anthranilamide (2-aminobenzamide) as potential aldehydes scavengers were carried out. Mostly VOCs observed in the PET bottles analysed were identified in a neat ESBO sample. The presence of the ESBO additive in the PET-bottle fragments was also observed by matrix-assisted laser desorption/ionization time of flight mass spectrometry analysis (MALDI–TOF MS). The ESBO sub-products were not observed in the virgin btlg-PET pellets analysed by both HS-GC/MS and MALDI–TOF MS. These results suggest that the VOCs come from an ESBO additive probably loaded during the blow-moulding processes used for the manufacturing of PET bottles. Further studies established that MXD6 (1%w), an efficient oxygen scavenger, could be also used as AA scavenger even in the presence of the commonly used anthranilamide.

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Long‐time Performance of Bottles Made of PET Blended with Various Concentrations of Oxygen Scavenger Additive Stored at Different Temperatures

Cited by 18 publications

References 58 publications

Effect of Temperature and Relative Humidity on the Reaction Kinetics of an Oxygen Scavenger Based on Gallic Acid

Effect of Temperature and Relative Humidity on the Reaction Kinetics of an Oxygen Scavenger Based on Gallic Acid

Injection‐stretch blow molding of poly (lactic acid)/polybutylene succinate blends for the manufacturing of bottles

Characterization of VOCs and additives in Italian PET bottles and studies on potential functional aldehydes scavengers

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