2020, Vol. 8, Issue 4, Part A

Antioxidant capacity of acetone and chloroform extracts of C. salzmannii was also reported (89.56 and 80.92 % oxidation inhibition, respectively). The soluble extract of the products secreted by lichen immobilisates incubated on sodium acetate during 15 days, contained only proteins and exhibited a potent antioxidant capacity (96.35%). The soluble extract of the products secreted by from fungal immobilisates during 6 and 18 days of incubation showed ranges of 90-94% inhibition. Similar values were found for the soluble extracts of algal immobilisates incubated during 8 and 11 days. On the other hand, the growth of Staphylococcus aureus, Escherichia coli and Klebsiella pneumoniae was inhibited by barbatic acid secreted from immobilisates, although organic lichen extracts showed highest antimicrobial activity due to a possible synergism between their different components. Thus, substances produced by immobilized bionts of C. salzmannii are a potential source of different natural antioxidant and antimicrobial compounds.