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Nutrients 2017, 9(10), 1101; doi:10.3390/nu9101101

Antioxidants Potential of the Filamentous Fungi (Mucor circinelloides)

1
Colin Ratledge Center for Microbial Lipids, School of Agriculture Engineering and Food Science, Shandong University of Technology, Zibo 255049, China
2
Key Laboratory of Meat Processing & Quality Control, College of Food Sciences, Nanjing Agriculture University, Nanjing 210095, China
3
UQ School of Medicine, University of Queensland, Brisbane, QLD 4072, Australia
4
Department of Food, Nutrition, Dietetics & Health, Kansas State University, Manhattan, KS 66506, USA
These authors contributed equally to this work.
*
Author to whom correspondence should be addressed.
Received: 4 August 2017 / Revised: 21 September 2017 / Accepted: 29 September 2017 / Published: 7 October 2017
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Abstract

Three important strains of Mucor circinelloides grown in complete and minimal media for specified period (72 h, 120 h and 168 h) under submerged fermentation conditions were investigated for their potential antioxidants/secondary metabolite production. All mycelial extracts demonstrated effective antioxidant activities in terms of β-carotene/linoleic acid bleaching, radical scavenging, reduction of metal ions and chelating abilities against ferrous ions. Different extraction methods and solvent systems affected the recovery yield and antioxidant activities of the extracts significantly (p 0.05). Ethanolic extracts were found to be rich source of antioxidant components and subsequently more effective in antioxidant properties. Fermentation period and media used also significantly affected (p 0.05) the antioxidant production and the resulting antioxidant properties. The (ethanolic) extracts of all the strains from late exponential growth phase (120 h) showed highest antioxidant production with topmost reducing, chelating and radical scavenging capabilities. Strain MC277.49 was found to be the highest producer of antioxidants followed by MC108.16 and WJ11. Phenolic compounds were detected significantly in higher (p 0.05) amount succeeded by the condensed tannins and flavonoids. Total phenol content of each extract was attributed to overall antioxidant capacity. Submerged fermentation with nutritional stress conditions were found to be excellent way of producing surplus amount of natural antioxidants/secondary metabolites with their vast potential commercial application in food and pharmaceutical industries. View Full-Text
Keywords: antioxidants; filamentous fungi; Mucor circinelloides; food microbiology; natural antioxidants antioxidants; filamentous fungi; Mucor circinelloides; food microbiology; natural antioxidants
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Hameed, A.; Hussain, S.A.; Yang, J.; Ijaz, M.U.; Liu, Q.; Suleria, H.A.R.; Song, Y. Antioxidants Potential of the Filamentous Fungi (Mucor circinelloides). Nutrients 2017, 9, 1101.

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