Naslov
Biovalorization of brewers’ spent grain for the production of laccase and polyphenols

Autori
Tišma, Marina ; Jurić, Anita ; Bucić-Kojić, Ana ; Panjičko, Mario ; Planinić, Mirela

Izvornik
Journal of the institute of brewing (0046-9750) 124 (2018), 2; 182-186

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
brewers’ spent grains ; laccase production ; polyphenols ; solid-state fermentation ; Trametes versicolor

Sažetak
Brewers’ spent grain (BSG) is the main solid by-product of the brewing process and is typically disposed of as cattle feed. In this study, BSG was evaluated as a substrate for the production of polyphenols and the lignin- degrading enzyme laccase using fungal solid- state fermentation by Trametes versicolor. Laccases are finding increasing applications in the food industry and polyphenols have benefits for human health. After 14 days of fermentation with T. versicolor, there was a 3.4-fold increase in the extraction of total polyphenols compared with untreated BSG. Using BSG as the sole source of carbon and nitrogen, maximum laccase activity was achieved after seven days of treatment with an activity of 560 U/L. Based on these results, BSG is suggested to be a good lignocellulose waste material to produce value- added products such as the enzyme laccase and polyphenols.

Izvorni jezik
Engleski

Znanstvena područja
Biotehnologija, Prehrambena tehnologija

POVEZANOST RADA