Lignin nanoparticles with entrapped Thymus spp. essential oils for the control of wood-rot fungi

Zikeli, Florian (avtor), Vettraino, Anna Maria (avtor), Biscontri, Margherita (avtor), Bergamasco, Sara (avtor), Palocci, Cleofe (avtor), Humar, Miha (avtor), Romagnoli, Manuela (avtor)

After decades of utilization of fossil-based and environmentally hazardous compounds for wood preservation against fungal attack, there is a strong need to substitute those compounds with bio-based bioactive solutions, such as essential oils. In this work, lignin nanoparticles containing four essential oils from thyme species (Thymus capitatus, Coridothymus capitatus, T. vulgaris, and T. vulgaris Demeter) were applied as biocides in in vitro experiments to test their anti-fungal effect against two white-rot fungi (Trametes versicolor and Pleurotus ostreatus) and two brown-rot fungi (Poria monticola and Gloeophyllum trabeum). Entrapment of essential oils provided a delayed release over a time frame of 7 days from the lignin carrier matrix and resulted in lower minimum inhibitory concentrations of the essential oils against the brown-rot fungi (0.30–0.60 mg/mL), while for the white-rot fungi, identical concentrations were determined compared with free essential oils (0.05–0.30 mg/mL). Fourier Transform infrared (FTIR) spectroscopy was used to assess the fungal cell wall changes in the presence of essential oils in the growth medium. The results regarding brown-rot fungi present a promising approach for a more effective and sustainable utilization of essential oils against this class of wood-rot fungi. In the case of white-rot fungi, lignin nanoparticles, as essential oils delivery vehicles, still need optimization in their efficacy.

• Jezik: Angleški jezik
• Ključne besede: wood decay, white-rot fungi, brown-rot fungi, beech, lignin nanoparticles, essential oils
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: BF - Biotehniška fakulteta
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2023
• Št. strani: 1 spletni vir (1 datoteka PDF (19 str.))
• Številčenje: Vol. 15, no. 12
• PID: 20.500.12556/RUL-153553
• UDK: 630*8
• ISSN pri članku: 2073-4360
• DOI: 10.3390/polym15122713
• COBISS.SI-ID: 156214275
• Datum objave v RUL: 15.01.2024

Gradivo je del revije

• Naslov: Polymers
• Skrajšan naslov: Polymers
• Založnik: MDPI
• ISSN: 2073-4360
• COBISS.SI-ID: 517951257

Licence

• Licenca: CC BY-NC 4.0, Creative Commons Priznanje avtorstva-Nekomercialno 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by-nc/4.0/deed.sl
• Opis: Licenca Creative Commons, ki prepoveduje komercialno uporabo, vendar uporabniki ne rabijo upravljati materialnih avtorskih pravic na izpeljanih delih z enako licenco.

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: razkroj lesa, glive bele trohnobe, glive rjave trohnobe, bukovina, lignin, nanodelci, esencialna olja

Projekti

• Financer: Drugi - Drug financer ali več financerjev
• Program financ.: European Cooperation in Science and Technology
• Številka projekta: CA17128
• Naslov: Establishment of a Pan-European Network on the Sustainable Valorisation of Lignin
• Akronim: LignoCOST