| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Oliveira, Catarina S. S.
Universidade Católica Portuguesa
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (6/6 displayed)
- 2016Effects of fermentation residues on the melt processability and thermomechanical degradation of PHBV produced from cheese whey using mixed microbial culturescitations
- 2016Impact of fermentation residues on the thermal, structural, and rheological properties of polyhydroxy(butyrate-co-valerate) produced from cheese whey and olive oil mill wastewatercitations
- 2016Characterization of polyhydroxyalkanoate blends incorporating unpurified biosustainably produced poly(3-hydroxybutyrate-co-3-hydroxyvalerate)citations
- 2016Production of bacterial nanobiocomposites of polyhydroxyalkanoates derived from waste and bacterial nanocellulose by the electrospinning enabling melt compounding methodcitations
- 2014PHA obtained from mixed microbial cultures fed with food industry by-products : thermorheological characteristics and benchmarking with commercial PHA
- 2014Characterization of polyhydroxyalkanoates synthesized from microbial mixed cultures and of their nanobiocomposites with bacterial cellulose nanowhiskerscitations
Places of action
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article
Production of bacterial nanobiocomposites of polyhydroxyalkanoates derived from waste and bacterial nanocellulose by the electrospinning enabling melt compounding method
Abstract
This work reports on the characterization of nanocomposites fully synthesized by bacteria, consisting of polyhydroxybutyrate-co-hydroxyvalerate (PHBV) matrices reinforced with bacterial cellulose nanowhiskers (BCNW). Two PHBV grades, with 9% HV (PHBV9) and 16% HV (PHBV16), were synthesized using food industry waste feedstocks and compared with a 3% HV commercial grade (PHBV3). Whereas PHBV3 presented a high barrier performance but excessive brittleness, PHBV9 and PHBV16 showed a more ductile behavior and reduced barrier properties. Subsequently, BCNW were incorporated into the PHBVs by a high-throughput electrospinning technique to produce master-batch formulations with relatively high nanofiller concentrations. The hybrid ultrathin fibers showed homogeneous morphologies and greater thermal stability than the pure PHBV fibers. Nanocomposites were then produced by melt mixing PHBVs with the hybrid fibers. Despite the low compatibility between the extremely hydrophilic BCNW and the hydrophobic PHBVs, the nanofiller was highly dispersed and provided a reduction in oxygen permeability of the PHBV3 matrix without relevant modifications in mechanical performance.