Development and characterization of bacterial cellulose nanocomposites from de-pectinated sugar beet pulp hydrolysates within a biorefinery
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Summary
This summary is machine-generated.This study introduces a biorefinery using sugar beet pulp to produce pectin and bacterial nanocellulose. Residual pulp solids were optimized for enzyme production and bacterial cellulose generation, yielding promising nanocomposites for material reinforcement.
Area Of Science
- Biotechnology
- Materials Science
- Sustainable Chemistry
Background
- Sugar beet pulp is a significant agro-industrial byproduct.
- Valorization of pulp components is crucial for biorefinery sustainability.
- Bacterial nanocellulose (BNC) offers unique material properties.
Purpose Of The Study
- To develop a biorefinery concept utilizing sugar beet pulp.
- To produce pectin and bacterial nanocellulose.
- To create bacterial cellulose nanocomposites (BNC) for material applications.
Main Methods
- Solid-state fermentation of residual sugar beet pulp solids (SBPR) for enzyme production.
- Optimization of SBPR hydrolysis using response surface methodology.
- Bacterial cellulose production using SBPR hydrolysate with optimized aeration.
- Modification of BNC into nanocomposites with sulfation.
Main Results
- Optimized SBPR hydrolysis achieved 81.4% glucan and 25.3% hemicellulose hydrolysis.
- Aeration enhanced bacterial cellulose production by 65%, reaching 4.6 g/L.
- Produced BNC exhibited high crystallinity (>92%) and 0.45% sulfation.
Conclusions
- A viable biorefinery concept for sugar beet pulp valorization was demonstrated.
- The produced BNC, with high crystallinity and aspect ratio, are suitable for polymer reinforcement.
- This approach contributes to sustainable production of valuable biomaterials.
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