Open AccessANTIOXIDANT ACTIVITIES OF MYCELIA AND BROTH FILTRATE EXTRACTS OF ASPERGILLUS SPP
Author(s) -
M. A. EBRAHIMZADEH,
G. RAHBAR,
M. A. TAJICK GHANBARY,
M. SOLTANY REZAEE RAD
Publication year - 2017
Publication title -
latin american applied research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.123
H-Index - 23
eISSN - 1851-8796
pISSN - 0327-0793
DOI - 10.52292/j.laar.2017.307
Subject(s) - mycelium , antioxidant , aspergillus terreus , aspergillus fumigatus , chemistry , dpph , ethyl acetate , food science , aspergillus flavus , microbiology and biotechnology , biochemistry , biology , botany
The antioxidant activities of mycelia and broth filtrate ethyl acetate extracts produced from the cultures of 12 Aspergillus spp. were investigated. Extracts showed a concentration-dependent antioxidant activity by inhibiting DPPH radicals. Broth filtrate extracts showed higher activity than mycelia filtrate extracts. A. fumigatus showed the best activity (with 92.5% inhibition at the concentration of 0.8 mg ml-1). The extracts exhibited potent nitric oxide-scavenging activity. Broth filtrate extract of A. fumigatus showed the best activity (with 79.6 % inhibition at 1.6 mg ml-1) followed by the A. ostianus and A. terreus. Reducing powers of extracts also increased with the increases in their concentrations. Two broth filtrate extracts, A. terreus and A. fumigatus, have shown potent reducing power. In chelating ability, mycelia filtrate extracts showed higher activity. A. flavus showed the best activity (with 49.1% inhibition at 1.6 mg ml-1). The present study demonstrates the potential of soil fungi to have antioxidant activity similar to plants and represent them as new sources of natural antioxidants.