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Título: | Hydrothermal extraction of tannins from pine bark: Optimization, characterization and comparison with commercial antioxidants |
Autor: | Pisani, Justina Xavier, Lucía Zecchi, Berta |
Tipo: | Póster |
Fecha de publicación: | 2025 |
Resumen: | Hydrothermal treatment of pine bark was optimized using a Box-Behnken design. Quadratic models for all responses showed good fit (R² > 0.95; p < 0.0001). The optimal conditions were 130 °C, 45 min, solid/liquid ratio 1/20 g/mL, yielding:
• Extraction yield: 13.54 ± 1.30 g/100 g dry bark
• Total phenolics: 30.18 ± 2.11 mg GAE/g dry bark
• FRAP: 13.32 ± 2.80 mmol AAE/100 g dry bark
• Condensed tannins: 6.79 ± 1.57 mg CE/g dry bark
• Stiasny number: 24.03 ± 4.27 %
Extracts showed lower antioxidant capacity than BHA and α-tocopherol in FRAP, ABTS, and DPPH assays.
Conclusion: Hydrothermal treatment is a sustainable method to obtain phenolic-rich extracts with measurable antioxidant capacity and promising adhesive properties, supporting their potential application in bioadhesive formulations. |
EN: | 3rd CIBIQ - Iberoamerican Congress on Chemical Engineering. Set. 2025. Lisboa, Portugal. |
Financiadores: | ANII FMV_1_2021_1_166365 ANII Beca de Maestría (POS_FMV_2021_1_1010831). |
Citación: | Pisani, J., Xavier, L. y Zecchi, B. Hydrothermal extraction of tannins from pine bark: Optimization, characterization and comparison with commercial antioxidants [en línea] Póster, 2025. |
Licencia: | Licencia Creative Commons Atribución - No Comercial - Sin Derivadas (CC - By-NC-ND 4.0) |
Aparece en las colecciones: | Publicaciones académicas y científicas - Instituto de Ingeniería Química |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | ||
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PXZ25.pdf | Póster | 1,48 MB | Adobe PDF | Visualizar/Abrir |
Este ítem está sujeto a una licencia Creative Commons Licencia Creative Commons