Chitosan/Corn Cob Biocomposite Films by Cross-linking with Glutaraldehyde

Chan, Ming Yeng; Husseinsyah, Salmah; Sam, Sung Ting

doi:10.15376/biores.8.2.2910-2923

Cited by 22 publications

(7 citation statements)

References 29 publications

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“…The average tensile strength of crosslinked CS/EFB biofilms with PA is 34.86% higher than uncrosslinked biofilms. Similar results have been reported by Yeng et al, 17 who studied the effect of corn cob content and glutaraldehyde as a crosslinking agent on CS/corn cob biocomposite films. Figure 2 shows the influence of EFB content on the elongation at break of CS/EFB biofilms.…”

Section: Scanning Electron Microscopy (Sem)supporting

confidence: 89%

“…15,16 Due to poor tensile properties of uncrosslinked CS/EFB biofilms, the crosslinking agent was used in order to improve the properties of biofilms. It has been reported in our previous study that the utilisation of different crosslinking agent [17][18][19] and addition of modifier 4 in CS biocomposite films improved the tensile and thermal properties of biocomposite films.…”

Section: Introductionmentioning

confidence: 63%

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Tensile and Thermal Properties of Crosslinked Chitosan/Empty Fruit Bunch Biofilms by Phthalic Anhydride

Chan¹,

Husseinsyah²,

Amirudin³

2016

JPS

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Chitosan (CS) has high potential applications in packaging, agriculture and food. However, the cost associated with CS application is high. Therefore, the addition of agriculture waste such as empty fruit bunch (EFB) in CS has been studied in order to reduce the cost of CS. The CS/EFB biofilms are prepared through solvent casting method. This paper studies the effect of phthalic anhydride (PA) crosslinking agent on tensile, morphological and thermal properties of CS/EFB biofilms. The results indicated that the tensile strength and elongation at break of uncrosslinked CS/EFB biofilms decreases. However, the modulus of elasticity increases with the increasing EFB content. In addition, the glass transition temperature (T g) of CS/EFB biofilms increased with EFB content. The crosslinked CS/EFB biofilm with PA showed higher tensile properties (i.e., tensile strength, elongation at break and modulus of elasticity) in comparison with uncrosslinked biofilms. The T g of crosslinked CS/EFB biofilms, meanwhile, was higher than the uncrosslinked biofilms due to formation of amide linkages. The formation of amide bonds between CS and PA was analysed using the Fourier transform infrared (FTIR) spectroscopy. The better filler dispersion and filler-matrix adhesion were proven by scanning electron microscopy (SEM). It was further observed that the percentage gel fraction of both uncrosslinked and crosslinked CS/EFB biofilms increased with increasing of EFB content. On the other hand, the crosslinked CS/EFB biofilms exhibited higher gel fraction than uncrosslinked biofilms due to the formation of amide crosslinkages in crosslinked biofilms.

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Section: Scanning Electron Microscopy (Sem)supporting

confidence: 89%

Section: Introductionmentioning

confidence: 63%

Tensile and Thermal Properties of Crosslinked Chitosan/Empty Fruit Bunch Biofilms by Phthalic Anhydride

Chan¹,

Husseinsyah²,

Amirudin³

2016

JPS

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“…It is commonly used as the chemosterilizing agent for different medical equipment [31]. Glutardialdehyde or also called glutaraldehyde was chosen in this work as many researchers had successfully utilized it in improving the properties of chitosan/corn cob biocomposite films [32] and thermoplastic starch [33,34], where the improvement in tensile strength, tensile modulus, tear, and burst of the starch film happened [35].…”

Section: Introductionmentioning

confidence: 99%

Formaldehyde-Free Wood Composite Fabricated Using Oil Palm Starch Modified with Glutardialdehyde as the Binder

Amini

Hashim

Sulaiman

2019

International Journal of Chemical Engineering

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Oil palm trunk is a kind of biomass rich in starch content. Oil palm trunk waste was available throughout the year in Malaysia and Indonesia due to continuous felling of nonproductive, over 25-year-old trees. Even though some manufacturers were using it in plywood and veneer production, they are hard to handle which later becomes less favorable raw materials due to a high moisture content where combination with a high starch content quickly attracts fungus and wood-decaying agents. The objective of this work was to evaluate properties of experimental wood composite panels, manufactured using oil palm-extracted starch modified with glutardialdehyde (OPSMG) as a binder. Different analyses were employed to characterize the properties of the samples besides evaluation of bending, internal bonding strength, and dimensional stability of the panels. Characterization on the functional group using the FT-IR analysis showed presence of aldehyde groups and ketone stretching vibrations at 1736.05 cm−1 and 1596.25 cm−1, which proves the presence of glutardialdehyde besides formation of bonding between the OPSMG and the woody materials. The XRD analysis showed the starch modification had lowered the crystallinity index which in turn increased the strength of the manufactured wood composites. The OPSMG wood composites were also found to have lower thermal stability, as evaluated using the TGA analysis. It was recorded that the maximum modulus of rupture for OPSMG wood composites was achieved at the 0.80 g/cm3 density level with an average value of 15.446 N/mm2 which showed 38.00% increment in strength between those two types of wood composites. Thickness swelling after immersion in water can still be improved by incorporating the moisture-repellent material later. After analyzing the results, it was concluded that modified oil palm starch has the potential to be used as an environment friendly binder for wood composite making.

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“…The two aldehyde groups at the terminals act as a bridge to connect amino groups of the protein and AA through generating a Schiff base (Chan, Husseinsyah, & Sam, 2013). Zhang, Gao, et al (2009) and Fu et al (2011) utilized this method to couple AA with bovine Table 1 Standard detection methods issued or adopted by organizations and countries.…”

Section: Enzyme-linked Immunosorbent Assay (Elisa) Methodsmentioning

confidence: 99%

Rapid methods for detecting acrylamide in thermally processed foods: A review

et al. 2015

Food Control

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Chitosan/Corn Cob Biocomposite Films by Cross-linking with Glutaraldehyde

Cited by 22 publications

References 29 publications

Tensile and Thermal Properties of Crosslinked Chitosan/Empty Fruit Bunch Biofilms by Phthalic Anhydride

Tensile and Thermal Properties of Crosslinked Chitosan/Empty Fruit Bunch Biofilms by Phthalic Anhydride

Formaldehyde-Free Wood Composite Fabricated Using Oil Palm Starch Modified with Glutardialdehyde as the Binder

Rapid methods for detecting acrylamide in thermally processed foods: A review

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