Characterization of natural polymers as functional barriers for cellulose-based packaging materials

TY - JOUR

T1 - Characterization of natural polymers as functional barriers for cellulose-based packaging materials

AU - Walzl, Andrea

AU - Kopacic, Samir

AU - Bauer, Wolfgang

AU - Leitner, Erich

PY - 2019/4

Y1 - 2019/4

N2 - Cellulose-based packaging materials are currently the most commonly used food packaging materials due to their light weight, stability and affordable price. However, the use of recycled paper and board adds to the risk that undesirable substances migrate into the packed goods, since contaminants are not completely removed during the recycling process and can accumulate in the final product. The only available fast and practical solution that can be used to reduce the migration of these substances is the application of functional barriers in the packaging. The applied barriers are currently mostly synthetic, which either serve only a moderate barrier function and/or have the disadvantage that it is often more complex and expensive to recycle the resulting packaging material. The aim of this project is to evaluate different bio-based or biodegradable polymers with regards to their barrier properties. Due to the fact that the transport phenomena are mainly driven by (gas phase) migration, methods based on gas chromatography (GC), including GC coupled with mass spectrometry (GC-MS) and flame ionization detection (GC-FID), GC-FID coupled online with high pressure liquid chromatography (HPLC-GC-FID), and comprehensive GCxGC-MS were used to qualify and quantify the migrated substances. This use of a wide range of different methods and instruments yielded excellent results, allowing us to comprehensively characterize the biopolymers and their barrier function.

AB - Cellulose-based packaging materials are currently the most commonly used food packaging materials due to their light weight, stability and affordable price. However, the use of recycled paper and board adds to the risk that undesirable substances migrate into the packed goods, since contaminants are not completely removed during the recycling process and can accumulate in the final product. The only available fast and practical solution that can be used to reduce the migration of these substances is the application of functional barriers in the packaging. The applied barriers are currently mostly synthetic, which either serve only a moderate barrier function and/or have the disadvantage that it is often more complex and expensive to recycle the resulting packaging material. The aim of this project is to evaluate different bio-based or biodegradable polymers with regards to their barrier properties. Due to the fact that the transport phenomena are mainly driven by (gas phase) migration, methods based on gas chromatography (GC), including GC coupled with mass spectrometry (GC-MS) and flame ionization detection (GC-FID), GC-FID coupled online with high pressure liquid chromatography (HPLC-GC-FID), and comprehensive GCxGC-MS were used to qualify and quantify the migrated substances. This use of a wide range of different methods and instruments yielded excellent results, allowing us to comprehensively characterize the biopolymers and their barrier function.

KW - barrier materials

KW - Functional barrier

KW - GC-FID

KW - GC-MS

KW - HPLC-GC-FID

KW - mineral oil hydrocarbons

KW - overall migration

KW - specific migration

UR - https://www.tandfonline.com/doi/full/10.1080/19440049.2019.1600747

UR - http://www.scopus.com/inward/record.url?scp=85064695835&partnerID=8YFLogxK

U2 - 10.1080/19440049.2019.1600747

DO - 10.1080/19440049.2019.1600747

M3 - Article

VL - 36

SP - 976

EP - 988

JO - Food Additives & Contaminants/ Part A

JF - Food Additives & Contaminants/ Part A

SN - 1944-0049

IS - 6

ER -