Isolation and Identification of Aspergillus niger Causes Otomycosis and Treatment by Phenolic Extract of Agaricus bisporus

Sarah Ali Hussein; Rusol Mohammed  Al-Bahrani

doi:10.30526/38.3.3644

Authors

Sarah Ali Hussein Department of Biology, College of Science, University of Baghdad, Baghdad, Iraq. https://orcid.org/0009-0000-3762-6275
Rusol Mohammed Al-Bahrani Department of Biology, College of Science, University of Baghdad, Baghdad, Iraq. https://orcid.org/0009-0009-3314-4928

DOI:

https://doi.org/10.30526/38.3.3644

Keywords:

Aspergillus niger, Otomycosis, Agaricus bisporus, Phenolic, HPLC technique

Abstract

This study aimed to isolate and characterize fungus Aspergillus niger and treated by crude phenolic extract from Agaricus bisporus mushroom that contains a bioactive compound to treat fungi. Thirty samples were taken of suffered patients with otomycosis. Phenol extract was performed by HPLC technology, Molecular diagnosis of fungal isolation by PCR technique. Results show that the microscopic and culture examination on sabouraud dextrose agar medium showed that the fungal isolates A. niger had a percentage of (60%). The molecular diagnosis of fungal isolates using the polymerase chain reaction technique. HPLC showed being present of six biologically active substances in A. bisporus. Active substance (phenols) was extracted from the fungus A. bisporus, and the concentrations were prepared (6.25, 12.5, 25 mg/ml) and then tested against A. niger fungus using the assessment of antifungal activity, the antifungal activity of the extracts and the inhibition of fungal growth were calculated individually. The outcomes demonstrated that the extract's inhibitory activity Phenolic against A. niger a concentration of 6.25 mg/ml showed lowest inhibition activity, the diameter of the colony was (1.63 ± 0.18cm), while the concentration of 25 mg/ml was the maximum of inhibitory activity, the diameter of the colony, was (1.23±0.03 cm) compared to the control (8.67 ± 0.33 cm).

Author Biographies

Sarah Ali Hussein , Department of Biology, College of Science, University of Baghdad, Baghdad, Iraq.

Department of Biology, College of Science, University of Baghdad, Baghdad, Iraq.
Rusol Mohammed Al-Bahrani, Department of Biology, College of Science, University of Baghdad, Baghdad, Iraq.

Department of Biology, College of Science, University of Baghdad, Baghdad, Iraq.

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