Biosynthesis of cellulose microfibre from peanut shell for the preparation of bio-nanocomposite films for food-packaging application

Abstract

Synthetic petroleum-based products are normally used for food-packaging application which results in environmental pollution. This creates a need to develop biodegradable polymer and polymer-based films to maintain the stability of packed materials for a defined period of time that will overcome the drawbacks of the synthetic petroleumbased packaging system. The current work is focussed on evaluating the potential of cellulose agar bio-nanocomposite films in food packaging application. The physical and mechanical properties such as its tensile strength (TS), Young's modulus (YM) and elongation at break (E) were found to be increased on loading with cellulose microfibre (CMF). TS is found to be increased from 38.8 ± 3.2 to 49.4 ± 4.3 and there is about 6% increase in the elongation at break. Similarly, CMF films exhibit 54 ± 0.2% water solubility, 1.304 opacity and 1.71 ± 0.07 GPa, respectively. Also, the bionanocomposite film showed less swelling property and an increase in soil degradation rate, enabling it to be applied in food packaging.

A method for the treatment of black tea waste: Converting it into liquid mulching film and solid mulching film

“…From the TBF spectra, the wide peak at 3261 cm −1 was caused by OH stretching vibration in the membrane structure. The absorption band at 2921 cm −1 indicated stretching vibrations of saturated aliphatic hydrocarbons in cellulose and hemicellulose 25,28 . This indicated that hemicellulose in black tea waste was not completely removed during the pretreatment.…”

“…The absorption band at 2921 cm À1 indicated stretching vibrations of saturated aliphatic hydrocarbons in cellulose and hemicellulose. 25,28 This indicated that hemicellulose in black tea waste was not completely removed during the pretreatment. The absorption peaks at 1588 and 1415 cm À1 could be attributed to stretching and bending vibrations of the C O C glycoside unit and β-(1,4)-glycoside bond.…”

Nanocellulose Composite Films in Food Packaging Materials: A Review

“…Some authors have observed an increase in elongation at break with the inclusion of nanocellulose. Raj et al [94] extracted cellulose microfiber from peanut shells, incorporated it in an agar matrix to develop bio-nanocomposite films, and evaluated its potential usage in food packaging applications. They found a 6% improvement in elongation at break in nanocomposite films.…”

From Waste to Strength: Unveiling the Mechanical Properties of Peanut-Shell-Based Polymer Composites

“…The tensile strength of the film was decreased by the addition of peanut shell extract and the tensile strength of the film was improved with the addition of peanut skin extract. In order to create bio-nanocomposite food-packaging film, Raj et al [107] synthesized cellulose microfiber from peanut shell. Three types of films were prepared by using agar solution (AS), peanut shell powder (PSP), and cellulose microfiber (CMF) synthesized from peanut shell powder.…”