Ferulic acid incorporated active films based on poly(lactide) /poly(butylene adipate-co-terephthalate) blend for food packaging

Shubham Sharma,Swarna Jaiswal,Brendan Duffy,Amit K Jaiswal

doi:10.1016/j.fpsl.2020.100491

Abstract

Abstract Active natural antibacterial blend of poly(lactide) - poly(butylene adipate-co-terephthalate) (PLA-PBAT) incorporated with ferulic acid was formed by solvent casting method. The influences of FA on the structural, colour, optical, thermostability, and antibacterial efficiency of PLA-PBAT blend films were studied. On the incorporation of the FA, thickness of the film was increased by 1.5–10 %. The tensile strength (TS) of the FA incorporated blend film increased to a value of 10.78 MPa at 10 wt% as compared to the control film which has 5.42 MPa. The temperature of degradation of the film increases as the FA content increases in the film. Antibacterial activity has been observed to increase due to the inclusion of the phenolic compound in the composite film against Listeria monocytogenes and Escherichia coli. The composite film has a potential application as an active food packaging due to its antibacterial and UV-light barrier properties.

Highlights

Plastic materials have been an inevitable part of human life as they are convenient to use, lightweight, cheap, possess good physicochemical and processing properties
The results showed an increase in elongation at break (EB) value of blend film in comparison to the control, the increment were statistically insignificant
Composite film of PLA-poly(butylene adipate-co-terephthalate) (PBAT) incorporated with Ferulic Acid (FA) was formed using solvent casting method

Summary

Introduction

Plastic materials have been an inevitable part of human life as they are convenient to use, lightweight, cheap, possess good physicochemical and processing properties. Use of plastics as a packaging material for food and beverages had increased widely in the form of cups, bottles, tubs, trays, sheets, and films. The increasing use of conventional plastics leads to an increase in the universal problem of plastic waste. A substantial volume of plastic waste has been deposited in the water bodies, landfill or the recovery sites where their classification or recovery demands both money and energy. The death records of the birds and sea animals have increased due to the detrimental effect of plastics. Focus is moved from conventional plastic which has limited disposal method and adverse environmental effect, to bioplastic which are bio-based and environmentally friendly

Methods

Results

Conclusion