Migration study of phthalates from non-food plastic containers used in food preservation

Songue Same, Olivier; Nobosse, Pierre; Ngolong Ngea, Guillaume Legrand; Piveteau, Catherine; Lemdani, Mohamed; Kamga, Richard; Deprez, Benoit

doi:10.1016/j.heliyon.2023.e20002

Cited by 7 publications

(1 citation statement)

References 44 publications

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“…In everyday life, we often use plastic wrap or aluminum foil to shield food against contamination by dust, dirt, or insects [ 1 , 2 , 3 , 4 , 5 ]. However, plastic wrap and aluminum foil are easily torn, not durable, and cannot be reused.…”

Section: Introductionmentioning

confidence: 99%

Advancement of an Environmentally Friendly and Innovative Sustainable Rubber Wrap Film with Superior Sealing Properties

Suchat,

Boonrasri

2024

Polymers

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Common kitchen wraps like plastic and aluminum foil create significant environmental burdens. Plastic wrap, typically made from non-renewable fossil fuels, often ends up in landfills for centuries, breaking down into harmful microplastics. Aluminum foil, while effective, requires a large amount of energy to produce, and recycling it at home can be impractical due to food residue. A promising new alternative, low-nitrosamine rubber wrap film, aims to reduce waste by offering a reusable option compared to traditional single-use plastic wrap. The film is environmentally friendly, durable, and effective in sealing containers and keeping food fresh or crispy. The raw materials used to make the product were studied, namely fresh and concentrated natural rubber latex. No nitrosamines were found in either the fresh or concentrated latex, which is important as nitrosamines are known to be carcinogenic. The absence of nitrosamines in the raw materials suggests that the universal rubber wrap film is safe for use. In this study, the rubber formulation and properties of rubber used to make rubber wrap film were studied. The content of additives affecting the rubber properties was varied to find the optimum rubber formulation for making rubber wrap films. The rubber formulation with the least amount of chemicals that met the following criteria was selected: tensile strength of at least 15 MPa, elongation at break of at least 600%, and nitrosamine content below 6 ppm. It was found experimentally that the optimum rubber formulation for making a translucent rubber film had 0.7 phr zinc oxide and 1.0 phr sulfur. Performance tests revealed the rubber wrap film’s superior sealing capabilities. Its elasticity allows for a tighter fit on containers, effectively conforming to various shapes and creating an optimal seal compared to plastic wrap and aluminum foil. The results of this study provide valuable information for developing a universal rubber wrap film that is safe with low nitrosamines.

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Section: Introductionmentioning

confidence: 99%

Advancement of an Environmentally Friendly and Innovative Sustainable Rubber Wrap Film with Superior Sealing Properties

Suchat,

Boonrasri

2024

Polymers

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Computational insights into phthalate ester‐linked VOCs: A density functional theory (DFT)‐based approach for chemical ionization mass spectrometry (CI‐MS) analysis

Bhatia

2024

Rapid Comm Mass Spectrometry

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RationaleThe presence of volatile organic compounds (VOCs), notably diethyl phthalate, dimethyl phthalate, di‐n‐butyl phthalate, di(2‐ethylhexyl) phthalate, and similar compounds in soft drinks, raises significant concerns due to their known or potential adverse health effects. Monitoring these compounds is imperative to comprehend their implications on human health and the overall quality of soft drinks. Chemical ionization mass spectrometry (CI‐MS) techniques emerge as powerful tools for VOC quantification in soft drinks, offering fast analysis times, high detection sensitivity, real‐time analysis capabilities, and versatility across various scientific fields.MethodsAchieving absolute quantification of VOCs using proton transfer reaction mass spectrometry (PTR‐MS) presents challenges, with individual VOC calibration proving labor intensive. Theoretical approaches pioneered by Su and colleagues, including density functional theory (DFT), offer avenues for approximating VOC concentrations and understanding ion‐molecule reactions. Specifically, DFT method B3LYP/6–311++G(d, p) computes molecular parameters like dipole moment, polarizability, proton affinity, and ionization energy for large phthalate esters. Rate constants of ion‐molecule reactions are determined using the parametrized trajectory method under varying E/N and temperature conditions.ResultsThe analysis of computed parameters across seven complex molecules reveals notable findings. Bis(2‐methoxyethyl) phthalate, for instance, exhibits a superior dipole moment, suggesting intensified electrostatic interactions with ions and heightened rate constants. The increased proton affinity observed in certain molecules renders them suitable for specific ionization methods. Furthermore, enthalpy change and free energy computations affirm the reactivity of ions with phthalate esters, with distinct variations noted in rate constants based on dipole moment and polarizability.ConclusionsIn conclusion, the parametrized trajectory method, coupled with computational analysis of molecular parameters, offers a means to compute rate constants for ion‐molecule reactions, enabling determination of VOC concentrations in soft drinks without external calibration standards in PTR‐MS analyses. The observed variations in rate constants with temperature and reagent ions align with collision theory principles and existing literature findings, underscoring the utility of these approaches in VOC identification and quantification using PTR‐MS.

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Distribution of Phthalic Acid Esters (PAEs) in Personal Care Products and Untreated Municipal Wastewater Samples: Implications for Source Apportionment and Ecological Risk Assessment

Pham,

Hoang,

Nguyen

et al. 2024

Water Air Soil Pollut

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Migration study of phthalates from non-food plastic containers used in food preservation

Cited by 7 publications

References 44 publications

Advancement of an Environmentally Friendly and Innovative Sustainable Rubber Wrap Film with Superior Sealing Properties

Advancement of an Environmentally Friendly and Innovative Sustainable Rubber Wrap Film with Superior Sealing Properties

Computational insights into phthalate ester‐linked VOCs: A density functional theory (DFT)‐based approach for chemical ionization mass spectrometry (CI‐MS) analysis

Distribution of Phthalic Acid Esters (PAEs) in Personal Care Products and Untreated Municipal Wastewater Samples: Implications for Source Apportionment and Ecological Risk Assessment

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