Migration Assessment and Modeling from Poly Ethylene Terephthalate (PET) Packaging Containers into Soft Drinks
نویسندگان
چکیده مقاله:
Background & objectives: Polyethylene terephthalate (PET) containers have many applications in the food industry. Although there are numerous advantages for PET it also has some disadvantages, one of which is the migration of materials from the container into the material inside. In this study, the effect of two factors of storage time and temperature on the migration rate was evaluated and modeled. Methods: To design the experiments, the surface-response method (RSM) was used. First, the type of migratory material and the effective conditions on the migration of materials from polyethylene terephthalate containers to soft drinks were identified and investigated. The primary results showed that the two factors of time of contact of the beverage with the container and the temperature of the storage environment have a significant effect on the migration of polyethylene terephthalate into the beverage. After the initial studies, the amount of compounds transferred into the beverage was measured by the spectrophotometric method and these results were modeled using the level-response method. Results: The results showed that the association between material transfer rate, temperature, and time can be modeled as a two-dimensional power model. It can also be stated by the model that temperature and shelf life directly affect the transfer rate with ratios of 0.003 and 1.17, respectively. The rate of migration is directly related to the square of the storage time and the temperature of the storage environment. The shelf life of the beverage has a very high impact on the migration rate, and mathematically the migration rate can be considered as a function of the shelf life of the soft drink. In addition to the shelf life of the beverage storage temperature is also a very important factor in the migration rate and the combination of the two can increase the rate of migration exponentially. Conclusion: Polyethylene terephthalate containers are not suitable for storing non-alcoholic carbonated beverages and have the potential to cause harm to consumer health.
منابع مشابه
Migration measurement and modelling from poly(ethylene terephthalate) (PET) into soft drinks and fruit juices in comparison with food simulants.
Poly(ethylene terephthalate) (PET) bottles are widely used for beverages. Knowledge about the migration of organic compounds from the PET bottle wall into contact media is of interest especially when post-consumer recyclates are introduced into new PET bottles. Using migration theory, the migration of a compound can be calculated if the concentration in the bottle wall is known. On the other ha...
متن کاملEvaluation of the Migration of Antimony from Polyethylene Terephthalate (PET) Plastic Used for Verjuice and Lemon Juice Packaging
The migration of antimony (Sb) from polyethylene terephthalate (PET) bottling for acidic juices have been assessed in this study. Inductively coupled plasma mass spectrometric (ICP-MS) method was chosen for antimony content determination. Experiments were undertaken at different conditions (15, 25, 35, 45days at 25, 50°C for first use bottle, reused bottle). Two different acidic juices (lemon j...
متن کاملChemical Degradation of Poly(Ethylene Terephthalate)
The possibility of converting polyethylene terephthalate (PET) waste into terephthalic acid as a primary material by using different techniques through trans-esterification, with an alcohol and through hydrolysis in basic medium, has been investigated. In addition, utilization of activating agents such as inorganic salts and phase transfer catalysts has been investigated. Mineral water and beve...
متن کاملOrganocatalytic Depolymerization of Poly(ethylene terephthalate)
We describe the organocatalytic depolymerization of poly(ethylene terephthalate) (PET), using a commercially available guanidine catalyst, 1,5,7-triazabicyclo[4.4.0]dec-5-ene (TBD). Postconsumer PET beverage bottles were used and processed with 1.0 mol % (0.7 wt %) of TBD and excess amount of ethylene glycol (EG) at 190 C for 3.5 hours under atmospheric pressure to give bis(2-hydroxyethyl) tere...
متن کاملEnzymatic surface modification of poly(ethylene terephthalate).
This study unambiguously confirms hydrolysis using cutinase of the persistent synthetic polymer poly(ethylene terephthalate), the most important synthetic fiber in the textile industry by direct measurement and identification of the different hydrolysis products. In this aqueous heterogeneous system, dissolved cutinase from Fusarium solani pisi acts on different solid poly(ethylene terephthalat...
متن کاملمنابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ذخیره در منابع من قبلا به منابع من ذحیره شده{@ msg_add @}
عنوان ژورنال
دوره 11 شماره 3
صفحات 266- 280
تاریخ انتشار 2020-10
با دنبال کردن یک ژورنال هنگامی که شماره جدید این ژورنال منتشر می شود به شما از طریق ایمیل اطلاع داده می شود.
میزبانی شده توسط پلتفرم ابری doprax.com
copyright © 2015-2023