Naslov
Recovery of phenolic acids from biologically treated corn silage by Trametes versicolor

Autori
Bucić-Kojić, Ana ; Kuzmanović, Melita ; Planinić, Mirela ; Tišma, Marina

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
2015 AiChE Annual Meeting / - , 2015

Skup
2015 AiChE Annual Meeting

Mjesto i datum
Salt Lake City (UT), Sjedinjene Američke Države, 08.11.2015. - 13.11.2015

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Corn silage ; phenolic acids ; Trametes versicolor

Sažetak
Corn silage consists of stover (leaves, stalks, husks) and the ear (cob and grain). It is commonly used used as a cattle feed, but recently it has been more often used together with cattle manure in biofuel production in anaerobic co-digestion. Extraction of bioactive phenolic compounds, among them phenolic acids, is the first step in their utilization from natural sources. Highly polymerized phenolic compounds are bonded in complexes with proteins, fibres and polysaharides. One of the possible ways to release that compounds is the application of environmentally friendly method such as biological pretreatment of the substrate. The aim of this work was to investigate the influence of biological pretreatment of corn silage with white-rot fungus Trametes versicolor on the enhancement of phenolic acid (p-coumaric acid: p-CuA, ferulic acid: FA ; p- hydroxybenzoic acid: p- HBA ; caffeic acid: CA, syringic acid: SA, vanillic acid: VA) extraction efficiency as a consequence of lignocellulose degradation. White-rot fungus T. versicolor was cultivated on corn silage in solid-state conditions (SSF) during twenty days. Phenolic compounds were extracted from corn silage before, during and after SSF by 50 % aqueous ethanol at 80 °C during two hours. Initial concentrations of phenolic acids were 206.29 mg/gdb, 44.76 mg/gdb, 30.41 mg/gdb, 15.05 mg/gdb, 9.68 mg/gdb and 2.82 mg/gdb for p-CuA, FA, CA, VA, p-HBA and SA, respectively. After biological pretreatment, 1.8-fold, 3- fold, 3.4-fold and 10.4-fold higher concentrations of four phenolic acids, CA, p- HBA, VA and SA were gained, respectively.

Izvorni jezik
Engleski

Znanstvena područja
Biotehnologija

Napomena
This work is done within ProBioTech project (RC. 2.2.08-0045) which is co-financed by the European Regional Development Fund (ERDF)

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