Fabrication and characterization of talipot starch-based biocomposite film using mucilages from different plant sources: A comparative study

Basheer Aaliya; Kappat Valiyapeediyekkal Sunooj; Akhila Vijayakumar; Patel Krina; Muhammed Navaf; Plachikkattu Parambil Akhila; Pajjuru Raviteja; Sabah Mounir; Maximilian Lackner; Johnsy George; Monica R Nemțanu

doi:10.1016/j.foodchem.2023.138011

Fabrication and characterization of talipot starch-based biocomposite film using mucilages from different plant sources: A comparative study

Food Chem. 2024 Apr 16:438:138011. doi: 10.1016/j.foodchem.2023.138011. Epub 2023 Nov 17.

Affiliations

¹ Department of Food Science and Technology, Pondicherry University, Puducherry 605014, India.
² Department of Food Science and Technology, Pondicherry University, Puducherry 605014, India. Electronic address: sunooj4u@gmail.com.
³ Department of Physics, Pondicherry University, Puducherry 605014, India.
⁴ Food Science Department, Faculty of Agriculture, Zagazig University, 44519 Zagazig, Egypt.
⁵ Department Industrial Engineering, University of Applied Sciences Technikum Wien, Höchstädtplatz 6, 1200 Vienna, Austria.
⁶ Food Engineering and Packaging Division, Defence Food Research Laboratory, Mysore 570011, India.
⁷ Electron Accelerators Laboratory, National Institute for Laser, Plasma and Radiation Physics, 409 Atomiştilor St., P.O. Box MG-36, 077125 Bucharest-Măgurele, Romania.

PMID: 37984000
DOI: 10.1016/j.foodchem.2023.138011

Abstract

Biocomposite films were prepared by formulating talipot starch with plant mucilage derived from shoeblack leaves, okra, and seeds of basil, fenugreek, and flax, which were identified as SBM-TSF, OKM-TSF, BSM-TSF, FGM-TSF, and FXM-TSF, respectively. The plant mucilages enhanced the crosslinking of the filmogenic solutions, which increased the film's relative crystallinity. Upon topographical investigation, the biocomposite films exhibited the same compact and homogeneous structures as the native talipot starch film (NTSF), but with finer corrugations. When compared to NTSF, the addition of plant mucilage decreased the moisture content while increasing the thickness and opacity. SBM-TSF showed significantly reduced (p ≤ 0.05) solubility and water vapor permeability, indicating that increased crosslink formation in the film obstructed the water vapor passage. Among all the biocomposite films, the BSM-TSF had the greatest tensile strength, making it more resistant to stretching. Among the studied biocomposite films, SBM-TSF and BSM-TSF demonstrated improved thermal and biodegradation stability.

Keywords: Biocomposite film; Biodegradation; Crosslinking; Plant mucilage; Talipot starch; Tensile strength.

MeSH terms

Permeability
Plant Mucilage* / chemistry
Solubility
Starch* / chemistry
Steam
Tensile Strength

Substances

Starch
Plant Mucilage
Steam