Effect of bacterial cellulose on properties of poly(lactic acid)

Threepopnatkul, Poonsub; Sittattrakul, Amnard; Supawititpattana, Karn; Jittiarpon, Panat; Raksawat, Phumin; Kulsetthanchalee, Chanin

doi:10.1016/j.matpr.2017.06.174

Cited by 5 publications

(3 citation statements)

References 12 publications

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“…The addition of 1% of KM increased T 5% and T 10% in the case of KMW, compared with plasticized r3-PLA. However, the addition of 3 wt.% of KM decreased T 5% and T 10% due to the low thermal stability of bacterial cellulose [ 44 ]. Regarding T max, it seemed that this value was enhanced by the addition of KMW and KMN at 1 wt.%, since the value was close to the unplasticized r3-PLA film, but the addition of a higher amount of KM showed a significant decrease for 3 wt.% KMN.…”

Section: Resultsmentioning

confidence: 99%

Plasticized Mechanical Recycled PLA Films Reinforced with Microbial Cellulose Particles Obtained from Kombucha Fermented in Yerba Mate Waste

et al. 2023

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In this study, yerba mate waste (YMW) was used to produce a kombucha beverage, and the obtained microbial cellulose produced as a byproduct (KMW) was used to reinforce a mechanically recycled poly(lactic acid) (r-PLA) matrix. Microbial cellulosic particles were also produced in pristine yerba mate for comparison (KMN). To simulate the revalorization of the industrial PLA products rejected during the production line, PLA was subjected to three extrusion cycles, and the resultant pellets (r3-PLA) were then plasticized with 15 wt.% of acetyl tributyl citrate ester (ATBC) to obtain optically transparent and flexible films by the solvent casting method. The plasticized r3-PLA-ATBC matrix was then loaded with KMW and KMN in 1 and 3 wt.%. The use of plasticizer allowed a good dispersion of microbial cellulose particles into the r3-PLA matrix, allowing us to obtain flexible and transparent films which showed good structural and mechanical performance. Additionally, the obtained films showed antioxidant properties, as was proven by release analyses conducted in direct contact with a fatty food simulant. The results suggest the potential interest of these recycled and biobased materials, which are obtained from the revalorization of food waste, for their industrial application in food packaging and agricultural films.

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Section: Resultsmentioning

confidence: 99%

Plasticized Mechanical Recycled PLA Films Reinforced with Microbial Cellulose Particles Obtained from Kombucha Fermented in Yerba Mate Waste

et al. 2023

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show abstract

“…The addition of 1% of KM increased T5% and T10% in the case of KMW, compared with plasticized r3-PLA. However, the addition of 3 wt.% of KM decreased T5% and T10% due to the low thermal stability of bacterial cellulose [44]. Regarding Tmax, it seemed that this value was enhanced by the addition of KMW and KMN at 1 wt.% since the value was close to the unplasticized r3-PLA film, but the addition of a higher amount of KM showed a significant decrease for 3 wt.% KMN but no modifications were observed for KMW.…”

Section: Thermogravimetric Analysismentioning

confidence: 91%

Plasticized Mechanical Recycled PLA Films Reinforced with Microbial Cellulose Particles Obtained from Kombucha Fermented in Yerba Mate Waste

Agüero¹,

Perianes²,

Muelas³

et al. 2022

Preprint

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Yerba mate waste (YMW) were used to produce kombucha beverage, and the obtained microbial cellulose produced as by product (KMW) was used to reinforce mechanically recycled poly(lactic acid) (r-PLA) matrix. Microbial cellulosic particles were also produced in pristine yerba mate for comparison (KMN). To simulate the revalorization of industrial PLA products rejected during the production line, PLA was subjected to three extrusion cycles and the resultant pellets (r3-PLA) were then plasticized with 15 wt.% of acetyl tributyl citrate ester (ATBC) to obtain optically transparent and flexible films by solvent casting method. The plasticized r3-PLA-ATBC matrix was then loaded with KMW and KMN in 1 and 3 wt.%. The use of plasticizer allowed a good dispersion of microbial cellulose particles into the r3-PLA matrix, allowing to obtain flexible and transparent films which showed good structural and mechanical performance. Additionally, the obtained films showed antioxidant properties, as it was proven by release analyses conducted in direct contact with a fatty food simulant. The results suggest the potential interest of these recycled and biobased materials that are obtained from the revalorization of food waste for their industrial application in food packaging or agricultural films.

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“…Water vapor adsorption isotherms Surface area and pore volume at variable temperature for solid-vapor systems [177,178] Equilibrium dye adsorption Use of dye probes to estimate the hydrophile-lipophile character of adsorbent and water adsorption capacity [77] GIST Enthalpy and entropy contributions to the free energy of solvation [179] Hydration distribution model Thermodynamics of pocket hydration [180] Computational Quantum-Mechanical DFT Accumulation of water molecules at hydrophilic sites [173] Correlation of dye-based adsorption with hydration [172] Physical models Derivation of the equations for water binding (free energies versus chemical potentials and activities) [176] ITC-isothermal titration calorimetry; GIST-grid inhomogeneous solvation theory.…”

Section: Thermodynamicmentioning

confidence: 99%

Advances in Bio-Based and Biodegradable Polymeric Composites

2023

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Effect of bacterial cellulose on properties of poly(lactic acid)

Cited by 5 publications

References 12 publications

Plasticized Mechanical Recycled PLA Films Reinforced with Microbial Cellulose Particles Obtained from Kombucha Fermented in Yerba Mate Waste

Plasticized Mechanical Recycled PLA Films Reinforced with Microbial Cellulose Particles Obtained from Kombucha Fermented in Yerba Mate Waste

Plasticized Mechanical Recycled PLA Films Reinforced with Microbial Cellulose Particles Obtained from Kombucha Fermented in Yerba Mate Waste

Advances in Bio-Based and Biodegradable Polymeric Composites

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