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Hu Y, Wang Z, Zhang X, Bai X, Li X, Ren D. Development of whey protein isolate/chitosan/microcrystalline cellulose‐based bilayer films using surface‐pretreated polyethylene terephthalate substrate. J FOOD PROCESS ENG 2020. [DOI: 10.1111/jfpe.13600] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Yue Hu
- Beijing Key Laboratory of Forest Food Processing and Safety, College of Biological Sciences and Biotechnology Beijing Forestry University Beijing People's Republic of China
| | - Zichun Wang
- Beijing Key Laboratory of Forest Food Processing and Safety, College of Biological Sciences and Biotechnology Beijing Forestry University Beijing People's Republic of China
| | - Xia Zhang
- Beijing Key Laboratory of Forest Food Processing and Safety, College of Biological Sciences and Biotechnology Beijing Forestry University Beijing People's Republic of China
| | - Xue Bai
- Beijing Key Laboratory of Forest Food Processing and Safety, College of Biological Sciences and Biotechnology Beijing Forestry University Beijing People's Republic of China
| | - Xue Li
- Beijing Key Laboratory of Forest Food Processing and Safety, College of Biological Sciences and Biotechnology Beijing Forestry University Beijing People's Republic of China
| | - Di‐Feng Ren
- Beijing Key Laboratory of Forest Food Processing and Safety, College of Biological Sciences and Biotechnology Beijing Forestry University Beijing People's Republic of China
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Li B, Wang ZW, Bai YH. Determination of the partition and diffusion coefficients of five chemical additives from polyethylene terephthalate material in contact with food simulants. Food Packag Shelf Life 2019. [DOI: 10.1016/j.fpsl.2019.100332] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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3
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Li B, Wang ZW, Lin QB, Hu CY. Molecular dynamics simulation of three plastic additives' diffusion in polyethylene terephthalate. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2017; 34:1086-1099. [PMID: 28346078 DOI: 10.1080/19440049.2017.1310398] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Accurate diffusion coefficient data of additives in a polymer are of paramount importance for estimating the migration of the additives over time. This paper shows how this diffusion coefficient can be estimated for three plastic additives [2-(2'-hydroxy-5'-methylphenyl) (UV-P), 2,6-di-tert-butyl-4-methylphenol (BHT) and di-(2-ethylhexyl) phthalate (DEHP)] in polyethylene terephthalate (PET) using the molecular dynamics (MD) simulation method. MD simulations were performed at temperatures of 293-433 K. The diffusion coefficient was calculated through the Einstein relationship connecting the data of mean-square displacement at different times. Comparison of the diffusion coefficients simulated by the MD simulation technique, predicted by the Piringer model and experiments, showed that, except for a few samples, the MD-simulated values were in agreement with the experimental values within one order of magnitude. Furthermore, the diffusion process for additives is discussed in detail, and four factors - the interaction energy between additive molecules and PET, fractional free volume, molecular shape and size, and self-diffusion of the polymer - are proposed to illustrate the microscopic diffusion mechanism. The movement trajectories of additives in PET cell models suggested that the additive molecules oscillate slowly rather than hopping for a long time. Occasionally, when a sufficiently large hole was created adjacently, the molecule could undergo spatial motion by jumping into the free-volume hole and consequently start a continuous oscillation and hop. The results indicate that MD simulation is a useful approach for predicting the microstructure and diffusion coefficient of plastic additives, and help to estimate the migration level of additives from PET packaging.
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Affiliation(s)
- Bo Li
- a Packaging Engineering Institute , Jinan University , Zhuhai , China.,b Key Laboratory of Product Packaging and Logistics of Guangdong Higher Education Institutes , Jinan University , Zhuhai , China.,c Zhuhai Key Laboratory of Product Packaging and Logistics , Jinan University , Zhuhai , China
| | - Zhi-Wei Wang
- a Packaging Engineering Institute , Jinan University , Zhuhai , China.,b Key Laboratory of Product Packaging and Logistics of Guangdong Higher Education Institutes , Jinan University , Zhuhai , China.,c Zhuhai Key Laboratory of Product Packaging and Logistics , Jinan University , Zhuhai , China
| | - Qin-Bao Lin
- a Packaging Engineering Institute , Jinan University , Zhuhai , China.,b Key Laboratory of Product Packaging and Logistics of Guangdong Higher Education Institutes , Jinan University , Zhuhai , China.,c Zhuhai Key Laboratory of Product Packaging and Logistics , Jinan University , Zhuhai , China
| | - Chang-Ying Hu
- b Key Laboratory of Product Packaging and Logistics of Guangdong Higher Education Institutes , Jinan University , Zhuhai , China.,c Zhuhai Key Laboratory of Product Packaging and Logistics , Jinan University , Zhuhai , China.,d Department of Food Science and Engineering , Jinan University , Guangzhou , China
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Li B, Wang ZW, Lin QB, Hu CY. Study of the Migration of Stabilizer and Plasticizer from Polyethylene Terephthalate into Food Simulants. J Chromatogr Sci 2016; 54:939-51. [PMID: 26941413 DOI: 10.1093/chromsci/bmw025] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2015] [Indexed: 11/14/2022]
Abstract
This study investigates the determination and migration of stabilizers and plasticizers from polyethylene terephthalate (PET). Two methods [ultrasonic extraction with dichloromethane or methanol and total dissolution with phenol/tetrachloroethane (m:m/1:1)] for pre-concentration of additives in PET material were performed. The diffusion of these additives from PET was evaluated by immersing in deionized water, acetic acid 3% (w/v), ethanol 20% (v/v), ethanol 50% (v/v) and isooctane at 20, 40, 55 and 70°C, respectively. The amount of additives in PET and food simulants was quantified by high-performance liquid chromatography-photodiode array detector (HPLC-PDA). The optimized HPLC method showed high correlation coefficients (R ≥ 0.9993), good precision, accuracy and reproducibility. Experimental diffusion coefficients (DP) were calculated according to a mathematical model based on Fick's second law, and the DP values of considered compounds ranged from 9.8 × 10(-15) to 1.4 × 10(-8) cm(2) s(-1) The experimental DP values were also compared with that predicted by currently used diffusion models. In addition, the effect of temperature on the diffusion rate was assessed. The effect of temperature on the diffusion coefficients followed an Arrhenius-type model with active energies ranged from 40.4 to 113.8 kJ mol(-1) for the target compounds.
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Affiliation(s)
- Bo Li
- Packaging Engineering Institute, Jinan University, Zhuhai 519070, China Key Laboratory of Product Packaging and Logistics of Guangdong Higher Education Institutes, Jinan University, Zhuhai 519070, China
| | - Zhi-Wei Wang
- Packaging Engineering Institute, Jinan University, Zhuhai 519070, China Key Laboratory of Product Packaging and Logistics of Guangdong Higher Education Institutes, Jinan University, Zhuhai 519070, China
| | - Qin-Bao Lin
- Packaging Engineering Institute, Jinan University, Zhuhai 519070, China Key Laboratory of Product Packaging and Logistics of Guangdong Higher Education Institutes, Jinan University, Zhuhai 519070, China
| | - Chang-Ying Hu
- Key Laboratory of Product Packaging and Logistics of Guangdong Higher Education Institutes, Jinan University, Zhuhai 519070, China Department of Food Science and Engineering, Jinan University, Guangzhou 510632, China
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Noonan GO, Whelton AJ, Carlander D, Duncan TV. Measurement Methods to Evaluate Engineered Nanomaterial Release from Food Contact Materials. Compr Rev Food Sci Food Saf 2014; 13:679-692. [DOI: 10.1111/1541-4337.12079] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Accepted: 03/04/2014] [Indexed: 02/02/2023]
Affiliation(s)
- Gregory O. Noonan
- Center for Food Safety and Applied Nutrition; United States Food and Drug Administration; 5100 Paint Branch Parkway College Park, MD 20740 U.S.A
| | - Andrew J. Whelton
- Dept. of Civil Engineering; Univ. of South Alabama; 150 Jaguar Drive Shelby Hall Suite 3142, Mobile AL 36688 U.S.A
| | - David Carlander
- Nanotechnology Industries Assoc; 101 Avenue Louise 1050 Brussels Belgium
| | - Timothy V. Duncan
- Center for Food Safety and Applied Nutrition; United States Food and Drug Administration; 6502 South Archer Rd Bedford Park IL 60516-1957 U.S.A
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Bott J, Störmer A, Franz R. A Comprehensive Study into the Migration Potential of Nano Silver Particles from Food Contact Polyolefins. ACS SYMPOSIUM SERIES 2014. [DOI: 10.1021/bk-2014-1159.ch005] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Affiliation(s)
- J. Bott
- Fraunhofer Institute for Process Engineering and Packaging IVV, Giggenhauser Straße 35, 85354 Freising, Germany
| | - A. Störmer
- Fraunhofer Institute for Process Engineering and Packaging IVV, Giggenhauser Straße 35, 85354 Freising, Germany
| | - R. Franz
- Fraunhofer Institute for Process Engineering and Packaging IVV, Giggenhauser Straße 35, 85354 Freising, Germany
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