Changes in the content of extractives in silver fir (Abies alba Mill.) bark due to different storage conditions

Hrovatič, Peter (avtor), Poljanšek, Ida (avtor), Osolnik, Urša (avtor), Oven, Primož (avtor), Vek, Viljem (avtor)

The circular economy promotes the use of industrial by-products as raw materials for high-quality products. Silver fir bark (Abies alba Mill.), a low-value residue from wood processing, is a rich source of polyphenols with antioxidant properties. This study investigated how bark preparation (particle size) and storage conditions affect the content of total extractives, polyphenols, and condensed tannins in aqueous extracts over a 10-month period. Bark samples of two particle sizes were stored either outdoors (exposed to precipitation) or indoors (dry, dark conditions). The extracts were analyzed monthly by gravimetry and UV-Vis spectrophotometry. The results showed that both particle size and storage conditions significantly influenced the retention of extractives and polyphenols in the samples. The highest losses occurred in ground bark samples stored outdoors, while the best retention was achieved with larger bark particles stored in a covered, dry environment. These findings highlight the importance of optimized storage strategies for the preservation of bark quality as a source of bioactive compounds.

• Jezik: Angleški jezik
• Ključne besede: silver fir (Abies alba Mill.), tree biomass, extraction, polyphenols, storage conditions, particle size, chemical monitoring
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: BF - Biotehniška fakulteta
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Datum objave: 24.10.2025
• Leto izida: 2025
• Št. strani: Str. 1-12
• Številčenje: iss. 6, Vol. 83
• PID: 20.500.12556/RUL-175456
• UDK: 630*8
• ISSN pri članku: 1436-736X
• DOI: 10.1007/s00107-025-02338-5
• COBISS.SI-ID: 254930179
• Datum objave v RUL: 28.10.2025

Gradivo je del revije

• Naslov: European journal of wood and wood products
• Založnik: Springer
• ISSN: 1436-736X
• COBISS.SI-ID: 22253061

Licence

• Licenca: CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by/4.0/deed.sl
• Opis: To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: bela jelka (Abies alba Mill.), drevesna biomasa, ekstrakcija, polifenoli, pogoji skladiščenja, velikost delcev, monitoring kemijske sestave