Physicochemical and mechanical properties of experimental coextruded food-packaging films containing a buried layer of recycled low-density polyethylene (original) (raw)

Characterizing Mechanical, Heat Seal, and Gas Barrier Performance of Biodegradable Films to Determine Food Packaging Applications

Polymers

In an organic circular economy, biodegradable materials can be used as food packaging, and at end-of-life their carbon atoms can be recovered for soil enrichment after composting, so that new food or materials can be produced. Packaging functionality, such as mechanical, gas barrier, and heat-seal performance, of emerging biodegradable packaging, with a laminated, coated, monomaterial, and/or blended structure, is not yet well known in the food industry. This lack of knowledge, in addition to end-of-life concerns, high cost, and production limits is one of the main bottlenecks for broad implementation in the food industry. This study determines application areas of 10 films with a pragmatic approach based on an experimental broad characterization of packaging functionality. As a conclusion, the potential application of these materials is discussed with respect to industrial settings and food and consumer requirements, to support the implementation of commercially available, biodegra...

Migration and storage study of food products packed in biodegradable films (LDPE and Modified Corn Starch)

emergent Life Sciences Research

This study focuses on the migration and storage properties of biodegradable films made from a blend of Low-Density Poly Ethylene (LDPE) and modified corn starch with food products. The overall migration (OM) from the biodegradable film in contact with food products such as potato chips and biscuits were investigated for six months using simulant ā€˜Dā€™ as per IS 9845:1988. During the migration study, the highest OM was 3.94 mg/dm2 for potato chips and 3.47 mg/dm2 for biscuits, respectively within the permissible limit as per standards. The moisture content of the biodegradable films (T1 and T2) containing potato chips remained consistent with the product standard specification for up to four months. When biodegradable films containing biscuits T1 and T2 were compared to T0 up to four months, they showed 3.61% and 4.02% moisture content, respectively, indicating suitability as a packaging material. Results showed that the peroxide value (PV) of potato chips packed in films of all treatm...

PRELIMINARY INVESTIGATION OF POLYMERIC FILMS FOR FOOD PACKAGINGS

The properties of packaging materials have been investigated and have been found to have effects on packaged foods either positively or negatively, hence the need for appropriate packaging materials for food products. This study investigated the barrier properties (permeability values) of food packaging materials as they affect the stability of packaged food products. The focus of this study was on two different packaging materials, namely Low Density Polyethylene (LDPE) and Polyethylene Terephthalate (PET) films and how their barrier properties affect the stability of packaged foods, particularly, the dried grinded pepper selected for this study. The barrier properties of the two selected packaging materials were investigated through direct method of shelf life study. The selected packaging materials of 0.08mm thickness each were developed into pouches of equal sizes and shapes with length 50cm and breadth 30cm each. 50g of the dried grinded pepper (Piripiri) was packaged with the pouches made with low density