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Development and Characterization of Commercial Biodegradable Film from PLA and Corn Starch for Fresh Produce Packaging

  • S. Mangaraj
  • S. Mohanty
  • Sachidananda SwainEmail author
  • Ajay Yadav
Research Article
  • 111 Downloads

Abstract

In this study, the PLA (v) and PLA-Corn starch based biodegradable films (90:10, 80:20) along with reagents BPO (benzyl peroxide) and GMA (Glycidylmethacrylate) was developed using commercial extrusion blown molding method. The haze %, tensile strength, OTR, WVTR parameters of the developed films varied from 16.38–94.73%, 56.49–24.18 MPa, 318.25–171.01 cc/m2/day and 175–101.47 (gm/m2/day), respectively for the developed films. The addition of corn starch decreased Tg from 65.26 to 59.712 °C, Tm from 146.81–150.56ºC with a slight increase in Tc from 106.45 to 107.7 °C. The suitability of capsicum in modified atmospheric packaging was studied using the developed biodegradable films. Capsicum was stored under MA in the developed films namely, virgin PLA, PLA-corn (10%), PLA-corn (20%) of size 28 cm × 16 cm having packaging area for the transmission of gas of 0.0896 m2 with a fill weight of 0.35 kg. Polymeric film made up of LDPE+LLDPE of 60 µm was used for comparison. The MA packages maintained ≤ 5% PLW and higher firmness of samples as compared to the unpackaged capsicum. MA packages maintained the quality of capsicum up to 12 and 24 days at 25 and 8 °C, respectively as compared to unpackaged capsicum having shelf life of 4 and 9 days at 25 and 8 °C, respectively.

Keywords

Poly lactic acid (PLA) Corn starch Extrusion blown film Capsicum MAP Quality 

Notes

Supplementary material

41783_2019_55_MOESM1_ESM.docx (29 kb)
Supplementary file1 (docx 30 kb)

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Copyright information

© Indian Institute of Packaging 2019

Authors and Affiliations

  • S. Mangaraj
    • 1
    • 4
  • S. Mohanty
    • 2
    • 4
  • Sachidananda Swain
    • 3
    • 4
    Email author
  • Ajay Yadav
    • 3
    • 4
  1. 1.Centre of Excellence on Soybean Processing and UtilizationICAR-Central Institute of Agricultural EngineeringBhopalIndia
  2. 2.Laboratory for Advanced Research in Polymeric Materials (LARPM)CIPETBhubaneswarIndia
  3. 3.Division of Natural Resource ManagementICAR-Central Island Agricultural Research InstitutePort BlairIndia
  4. 4.Agro Produce Processing DivisionICAR-Central Institute of Agricultural EngineeringBhopalIndia

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