INVESTIGADORES
BRECCIA Javier Dario
artículos
Título:
Biotransformation of rice and sunflower side-streams by dikaryotic and monokaryotic strains of Pleurotus sapidus: Impact on phenolic profiles and bioactive properties
Autor/es:
PINELA, JOSÉ; OMARINI, ALEJANDRA B.; STOJKOVIC, DEJAN; BARROS, LILLIAN; POSTEMSKY, PABLO D.; CALHELHA, RICARDO C.; BRECCIA, JAVIER; FERNÁNDEZ-LAHORE, MARCELO; SOKOVIC, MARINA; FERREIRA, ISABEL C.F.R.
Revista:
FOOD RESEARCH INTERNATIONAL
Editorial:
ELSEVIER SCIENCE BV
Referencias:
Año: 2020 vol. 132
ISSN:
0963-9969
Resumen:
Fungi are known to modify the properties of lignocellulosic materials during solid-state fermentation (SSF). In this study, agricultural side-streams (sunflower seed hulls, rice husks and rice straw) were used as substrates for SSF with dikaryotic and monokaryotic strains of Pleurotus sapidus. The phenolic profiles of the mentioned substrates were characterized by LC-DAD/ESI-MSn pre- and post- fermentation. Moreover, antioxidant, cytotoxic and antimicrobial activities were screened against oxidizable cellular substrates, tumour and primary cell lines, and different bacteria and fungi, respectively. Theconcentration of phenolic compounds in the crop side-streams was reduced afterfermentation with both strains of the fungus. The fermented extracts also displayed lower antioxidant and cytotoxic activities and had no hepatotoxicity. The antimicrobial activity depended upon the crop side-stream and/or SSF conditions. These results indicate that P. sapidus represent a good candidate to modify the phenolic fraction presents in crop sidestreams with a consequent decrease in its bioactivities. However, the SSF with P. sapidus strains play an interesting role in the detoxification of plant materials which can be usedfor different applications according to the ?reduce - reuse - recycle? concept contributing with the sustainable land use and circular economy.