Biotransformation of Araucaria araucana lignans: solid-state fermentation with a naturally occurring Pleurotus ostreatus strain

Abstract The effects of a naturally occurring Patagonian strain the white-rot fungus Pleurotus ostreatus on Araucaria araucana wood lignans was evaluated. Lignans colonized and non-colonized shavings activity fungal ligninolytic enzymes were studied. identified using gas chromatography with mass spectrometry detector. Only eudesmin lignan resisted biological degradation. highest laccase 0.111 ± 0.067 IU.g-1 dry matter substrate, which reached after 60 days, whereas manganese peroxidase (MnP) 0.220 0.109 25 when grown in solid-state culture shavings. degradation properties this may be useful for not only treating resinous wastes from regional forest industry to produce biofuels but also improving paper production. Moreover, capacity grow A. materials as substrate suggests possibility or sawdust other conifers food source P. ostreatus, an edible mushroom.