Abstract:The objective of this work is to study the effect of nanoclay fillers on the biodegradation and barrier properties of corn starch polymer-based biofilm. Starch derived from corn plant source was used to prepare a biofilm by plasticization method. The barrier properties, namely, water absorption, moisture permeation, oxygen permeation and swelling of unfilled and nanoclay-filled corn starch biofilms were examined. The results indicate: ∼22% reduced water absorption, 40% reduced moisture uptake, 30% reduced oxyg… Show more
“…5 ). Such results were also observed in research undertaken by ( Mohan et al, 2016 , Mohan et al, 2016 ). Fig.…”
Section: Resultssupporting
confidence: 83%
“…In a study by Mohan et al, ( Mohan et al, 2016 ) the adding filler to cornstarch bioplastics was seen to reduce biodegradation. Nevertheless, the phenomenon of increase in the filler quantity causing meliorated biodegradability can be explicated by keeping in consideration the fact that the presence of filler provides a huge surface contact area through which degrading agents can enter the polymer ( Rutkowska et al, 2002 ).…”
With the ever-increasing demand of plastics in the world and their consequent disastrous effects on environment, a suitable environmental-friendly substitute like bioplastics/biodegradable plastics is the need time. This study centers on green-production of a variety of bioplastic samples from (1) banana peel starch (BPP) and (2) a composite of banana peel starch, cornstarch and rice starch (COM) with varying amounts of potato peel powder and wood dust powder as fillers, respectively. Two different plasticizers – Glycerol and Sorbitol – have been utilized separately and in a 1:1 combination. A total of 12 samples of each of two types of bioplastics were made using multiple amounts and combinations of the fillers and plasticizers, to test the differences in the physical and chemical characteristics (moisture content, absorption of water, solubility in water, solubility in alcohol, biodegradation in soil, tensile strength, Young’s modulus and FT-IR) of the produced samples due to their different compositions. The differences in the properties of the bioplastic samples produced make them suitable for usage in many different applications. All 24 of the samples produced were synthesized using natural and environmentally safe raw material and showed biodegradation, thus proving to be a good alternative to the conventional plastics.
“…5 ). Such results were also observed in research undertaken by ( Mohan et al, 2016 , Mohan et al, 2016 ). Fig.…”
Section: Resultssupporting
confidence: 83%
“…In a study by Mohan et al, ( Mohan et al, 2016 ) the adding filler to cornstarch bioplastics was seen to reduce biodegradation. Nevertheless, the phenomenon of increase in the filler quantity causing meliorated biodegradability can be explicated by keeping in consideration the fact that the presence of filler provides a huge surface contact area through which degrading agents can enter the polymer ( Rutkowska et al, 2002 ).…”
With the ever-increasing demand of plastics in the world and their consequent disastrous effects on environment, a suitable environmental-friendly substitute like bioplastics/biodegradable plastics is the need time. This study centers on green-production of a variety of bioplastic samples from (1) banana peel starch (BPP) and (2) a composite of banana peel starch, cornstarch and rice starch (COM) with varying amounts of potato peel powder and wood dust powder as fillers, respectively. Two different plasticizers – Glycerol and Sorbitol – have been utilized separately and in a 1:1 combination. A total of 12 samples of each of two types of bioplastics were made using multiple amounts and combinations of the fillers and plasticizers, to test the differences in the physical and chemical characteristics (moisture content, absorption of water, solubility in water, solubility in alcohol, biodegradation in soil, tensile strength, Young’s modulus and FT-IR) of the produced samples due to their different compositions. The differences in the properties of the bioplastic samples produced make them suitable for usage in many different applications. All 24 of the samples produced were synthesized using natural and environmentally safe raw material and showed biodegradation, thus proving to be a good alternative to the conventional plastics.
“…[ 25 ] In another application, nanoclays were incorporated into corn starch polymer biofilms and were found to reduce oxygen permeation and moisture uptake. [ 26 ]…”
The incorporation of Janus silica and titanium dioxide fillers in wood fibre networks (handsheets) with 10, 20, and 40 wt% loading by filtration and layer‐by‐layer (LBL) deposition was demonstrated. The effect of filler's dual functionality on the wettability and water vapour transmission rate of handsheets loaded with the Janus fillers was investigated. Without silanization, the handsheets with silica filler are hydrophilic except when prepared by LBL and 40 wt% Janus silica filler. It was also found that silanization of the handsheets in conjunction with Janus fillers results in the formation of superhydrophobic handsheets with minimal liquid water absorption. Only the silanized handsheets prepared at 40 wt% Janus TiO2 filler loading were found to be hydrophobic. The lowest values of 231 and 237 g · m−2 · day−1 for the water vapour transmission rate was obtained for silanized handsheets with a Janus silica and titanium dioxide filler at 10 wt% loading, respectively.
“…Cherry tomato (Solanum Lycopersicum Mill.) is chosen as the food for shelf-life study because tomato is one of the widely grown vegetable crops, the second most important source of nourishment after potatoes for the world’s population with a total production of around 160 million tons per year [ 16 ]. In addition, tomato is one of the perishable fruits, and the ripeness changes continuously after harvesting.…”
This work aims to develop corn starch/chitosan nanoparticles/thymol (CS/CNP/Thy) bio-nanocomposite films as potential food packaging materials that can enhance the shelf life of food. CS/CNP/Thy bio-nanocomposite films were prepared by the addition of different concentrations of thymol (0, 1.5, 3.0, 4.5 w/w%) using a solvent casting method. The resulting films were characterized in terms of optical, mechanical, and water vapor permeability (WVP) properties. The addition of thymol was found to reduce the tensile strength (TS), elongation at break (EAB), and Young’s modulus (YM) of the films. Generally, the increment in the concentration of thymol did not significantly affect the TS, EAB, and YM values. The addition of 1.5 w/w% thymol increased the WVP of the films but the WVP reduced with the increase in thymol concentrations. CS/CNP/Thy-3% bio-nanocomposite films demonstrated the potential to lengthen the shelf life of cherry tomatoes packed with the films, whereby the cherry tomatoes exhibited no significant changes in firmness and the lowest weight loss. In addition, no mold growth was observed on the sliced cherry tomatoes that were in direct contact with the films during 7 days of storage, proving the promising application of the films as active food packaging materials.
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