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@ARTICLE{Paiva:1042406,
author = {Paiva, Robert and Wrona, Magdalena and Nerín, Cristina and
Gavril, Georgiana-Luminita and Cruz, Sandra Andrea},
title = {{V}olatile {C}ompounds and {O}ff-odors {A}nalysis of
{R}ecycled {PLA} for {P}ackaging {A}pplications: {A}n
{E}ssential {F}actor for {E}nsuring {F}ood {S}afety and
{Q}uality},
journal = {Journal of polymers and the environment},
volume = {32},
number = {12},
issn = {1064-7546},
address = {New York, NY [u.a.]},
publisher = {Springer Science + Business Media B.V.},
reportid = {FZJ-2025-02560},
pages = {6687 - 6697},
year = {2024},
abstract = {Recent European guidelines support the use of recycled and
biodegradable packaging for food applications. The approval
of such packaging must not alter food’s taste or be
harmful to health. In this work, PLA pellets were subjected
to a post-consumer contamination procedure, washing process,
and mechanical recycling, under common conditions of the
recycling industry. HS-SPME-GC-MS and HS-SPME-GC-O-MS
methods were used to detect volatile compounds and off-odor
profiles. 33 different volatile compounds were identified in
all samples. Intentionally added and non-intentionally added
substances (IAS and NIAS) were identified, including
benzaldehyde, benzyl alcohol, and
dimethyl-1,4-dioxane-2,5-dione. The relationship between the
formation of different NIAS and the PLA recycling process
steps was determined.14 different odor compounds such as
benzyl alcohol, benzaldehyde, nonanal, decanal, dodecanal,
2,3-dimethylnaphthaleneand 2,4-di-tert-butylphenol were
detected and classified into 4 aroma groups (Toasted,
Flower, Green and Chemical). The results obtained are
essential for the food safety of recycled plastic material
for food contact.},
cin = {IBG-2},
ddc = {540},
cid = {I:(DE-Juel1)IBG-2-20101118},
pnm = {2172 - Utilization of renewable carbon and energy sources
and engineering of ecosystem functions (POF4-217)},
pid = {G:(DE-HGF)POF4-2172},
typ = {PUB:(DE-HGF)16},
UT = {WOS:001319474900001},
doi = {10.1007/s10924-024-03409-z},
url = {https://juser.fz-juelich.de/record/1042406},
}