An integrated characterization of Picea abies industrial bark regarding chemical composition, thermal properties and polar extracts activity
- Neiva, Duarte M.
- Araújo, Solange
- Gominho, Jorge
- Carneiro, Angélica de Cássia
- Pereira, Helena
DOIAbstract
The present work determines the chemical and thermal characteristics as well as the phytochemical and antioxidant potential of the polar extractives of the Picea abies bark from an industrial mill, their wood and bark components and also different bark fractions obtained by mechanical fractionation (fine B1, Φ<0.180 mm, medium B3, 0.450 < Φ<0.850 mm and coarse B6, 2 < Φ<10 mm). The aim is to increase the knowledge on the Picea abies bark to better determine possible uses other than burning for energy production and to test an initial size reduction process to achieve fractions with different characteristics. Compared to wood, bark presented similar lignin (27%), higher mineral (3.9% vs 0.4%) and extractives (20.3% vs 3.8%) and lower polysac...
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