Poly(lactic acid)/cholecalciferol based composites for active food packaging application

Usman Lawal; Raja Samyuktha; Vijay Robert; K Sreelakshmi; Akshai Gopi; Murugesan Poochi; Sravanthi Loganathan; Sabu Thomas; Ravi Babu Valapa

doi:10.1016/j.ijbiomac.2023.125637

Poly(lactic acid)/cholecalciferol based composites for active food packaging application

Int J Biol Macromol. 2023 Aug 15:246:125637. doi: 10.1016/j.ijbiomac.2023.125637. Epub 2023 Jun 29.

Authors

Usman Lawal¹, Raja Samyuktha², Vijay Robert², K Sreelakshmi³, Akshai Gopi⁴, Murugesan Poochi⁵, Sravanthi Loganathan⁴, Sabu Thomas⁶, Ravi Babu Valapa⁷

Affiliations

¹ Electrochemical Process Engineering Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India; Department of Chemical Sciences, Federal University Wukari, Taraba, Nigeria.
² Electrochemical Process Engineering Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India.
³ Central Institute of Petrochemical Engineering and Technology (CIPET)-IPT, Cochin University of Science and Technology (CUSAT), Kochi 683501, Kerala, India.
⁴ Electrochemical Process Engineering Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.
⁵ Central Instrumentation Facility (CIF), CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India.
⁶ School of Chemical Sciences, Mahatma Gandhi University, Kottayam, Kerala 686560, India; International and Inter University Centre for Nanoscience and Nanotechnology and School of Energy Materials, Mahatma Gandhi University, Kottayam, Kerala 686560, India.
⁷ Electrochemical Process Engineering Division, CSIR-Central Electrochemical Research Institute (CECRI), Karaikudi 630003, Tamil Nadu, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India. Electronic address: vravibabu@cecri.res.in.

PMID: 37392923
DOI: 10.1016/j.ijbiomac.2023.125637

Abstract

Poly(lactic acid) (PLA) based sustainable composites incorporated with cholecalciferol (Vitamin D3) (CC) at different concentrations (1, 3, 5 and 10 wt%) were prepared using solvent casting method. Performance analysis of PLA/CC composite films in terms of food packaging properties like thermal, optical, oxygen barrier, mechanical, anti-bacterial as well as anti-oxidant effect is carried out. The PLA/CC-5 composite showed complete blockage of UV-B light at 320 nm, which is known to significantly induce the photo-chemical degradation of polymers. The incorporation of CC in the PLA matrix brought in improvement in mechanical and oxygen barrier properties. The PLA composite films showed effective antibacterial activity against food borne bacteria (S. aureus and E. coli), in addition to excellent antioxidant activity. All these important traits exhibited by PLA/CC composite films suggest its potential for food packaging application.

Keywords: Anti-bacterial; Anti-oxidant; Cholecalciferol; Food packaging; Poly (lactic acid); UV blocking.