Volatile and non-volatile radiolysis products in irradiated multilayer coextruded food-packaging films containing a buried layer of recycled low-density polyethylene

2005 ◽  
Vol 22 (12) ◽  
pp. 1264-1273 ◽  
Author(s):  
S. Chytiri ◽  
A. E. Goulas ◽  
A. Badeka ◽  
K. A. Riganakos ◽  
M. G. Kontominas
2008 ◽  
Vol 77 (9) ◽  
pp. 1039-1045 ◽  
Author(s):  
Stavroula Chytiri ◽  
Antonios E. Goulas ◽  
Anastasia Badeka ◽  
Kyriakos A. Riganakos ◽  
Dimitrios Petridis ◽  
...  

2020 ◽  
Vol 2020 ◽  
pp. 1-15
Author(s):  
Razieh Niazmand ◽  
Bibi Marzieh Razavizadeh ◽  
Farzaneh Sabbagh

The physical, thermal, mechanical, optical, microstructural, and barrier properties of low-density polyethylene films (LDPE) containing ferula asafoetida leaf and gum extracts were investigated. Results showed a reduction in elasticity and tensile strength with increasing extract concentration in the polymer matrix. The melting temperature and enthalpy increased with increasing concentration of extracts. The films containing extracts had lower L∗ and a∗ and higher b∗ indices. The films containing leaf extract had more barrier potential to UV than the gum extracts. The oxygen permeability in films containing 5% of leaf and gum extracts increased by 2.3 and 2.1 times, respectively. The morphology of the active films was similar to bubble swollen islands, which was more pronounced at higher concentrations of gum and leaf extracts. FTIR results confirmed some chemical interactions of ferula extracts with the polymer matrix. At the end of day 14th, the growth rate of Aspergillus niger and Saccharomyces cerevisea in the presence of the PE-Gum-5 reduced more than PE-Leaf-5 (3.7 and 2.4 logarithmic cycles, respectively) compared to the first day. Our findings showed that active LDPE films have desire thermo-mechanical and barrier properties for food packaging.


Author(s):  
Thomás Corrêa Vianna ◽  
Carolina Oliveira Marinho ◽  
Luís Marangoni Júnior ◽  
Salam Adnan Ibrahim ◽  
Roniérik Pioli Vieira

Author(s):  
Maria Cecíllia Ramos de Araújo Veloso ◽  
Mário Vanoli Scatolino ◽  
Maria Margarida Boavida Pontes Gonçalves ◽  
Mara Lúcia Agostini Valle ◽  
Thiago de Paula Protásio ◽  
...  

2021 ◽  
pp. 50559
Author(s):  
Pamela Rodrigues Passos Severino ◽  
Natália Ferreira Braga ◽  
Guilherme Ferreira Morgado ◽  
Juliano Marini ◽  
Orestes Ferro ◽  
...  

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