Abstract
Exopolysaccharides (EPS) and internal (intracellular) polysaccharides (IPS) obtained from the Pleurotus ostreatus M2191 and PBS281009 cultivated using the batch system revealed an average of between 0.1–2 (EPS) and 0.07–1.5 g/L/day (IPS). The carbohydrate analysis revealed that the polysaccharides comprised 87–89% EPS and 68–74% IPS. The investigation of antioxidant activity in vitro revealed a good antioxidant potential, particularly for the IPS and EPS isolated from PBS281009, as proved by the EC50 value for DPPH, ABTS scavenging activity, reducing power, and iron chelating activity.
Highlights
P. ostreatus is an edible mushroom commonly occurring all over Europe
Oyster mushroom (P. ostreatus) is currently gaining popularity over the other edible mushrooms that grow in spontaneous flora, like penny bun (Boletus edulis)
Mushrooms belonging to P. ostreatus M2191 were purchased from Mycelia-Belgia, Journal of Biomedicine and Biotechnology while those of PBS281009 were isolated from the Baneasa forest, Romania
Summary
P. ostreatus is an edible mushroom commonly occurring all over Europe. Currently, it is being cultivated as food on an industrial level. The DPPH scavenging activity of EPS and IPS of the two types of mycelium that were isolated after submerged cultivation in the batch system was directly correlated with the concentration of the sample (Figure 3).
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