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The application of solid-state fermentation using mushrooms for the production of animal feed
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  • E.D Cason,
  • C. Rothmann,
  • L.A Rothmann,
  • B.C Viljoen
E.D Cason
University of the Free State

Corresponding Author:casoned@ufs.ac.za

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C. Rothmann
University of the Free State - Bloemfontein Campus
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L.A Rothmann
University of the Free State - Bloemfontein Campus
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B.C Viljoen
University of the Free State - Bloemfontein Campus
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Abstract

The increasing growth of agro-industrial activity resulting in excessive amounts of agri-waste has led to the accumulation of a large quantity of lignocellulosic residues all over the world, in particular, deforestation initiatives for the removal of invasive trees in South Africa. These lignocellulosic residues are rich in energy resources consisting of a mixture of natural polymers based on lignin, cellulose and hemicellulose. The use of lignolytic fungi such as mushrooms in solid-state fermentation could sufficiently degrade the indigestible lignocellulosic components and add medicinal and nutritional value to otherwise unusable, high-energy waste material. The digestive type of animal for which the potential feed is developed must be identified and considered before deciding on the bioconversion method and process, since the outcomes for obtaining potentially high-quality feeds for non-ruminant and ruminant animals are different. The current study presents the data of the bioconversion of lignocellulosic substrate using solid-state fermentation with the edible and medicinal mushrooms, Ganoderma lucidum, Pleurotus ostreatus, and a possible new species, to increase digestibility and nutritional value to be applied as ruminant animal feed. The solid-state fermentation process was optimised and the resulting product analysed for the degradation of the lignocellulosic components. Results indicated that the solid-state fermentation duration and mushroom species were key components in achieving significant degradation. Data obtained after 18 weeks of degradation indicated a significant (p < 0.05) reduction in the acid detergent fibre, acid detergent lignin and neutral detergent fibre fractions of the biomass, with up to 20% reduction in indigestible components.
19 Apr 2023Submitted to Journal of Basic Microbiology
22 Apr 2023Submission Checks Completed
22 Apr 2023Assigned to Editor
22 Apr 2023Review(s) Completed, Editorial Evaluation Pending
24 Apr 2023Reviewer(s) Assigned
28 May 2023Editorial Decision: Revise Minor
30 May 20231st Revision Received
01 Jun 2023Submission Checks Completed
01 Jun 2023Assigned to Editor
01 Jun 2023Review(s) Completed, Editorial Evaluation Pending
01 Jun 2023Reviewer(s) Assigned
17 Jun 2023Editorial Decision: Revise Minor
23 Jun 20232nd Revision Received
24 Jun 2023Submission Checks Completed
24 Jun 2023Assigned to Editor
24 Jun 2023Review(s) Completed, Editorial Evaluation Pending
25 Jun 2023Reviewer(s) Assigned
28 Jun 2023Editorial Decision: Revise Minor
30 Jun 20233rd Revision Received
30 Jun 2023Submission Checks Completed
30 Jun 2023Assigned to Editor
30 Jun 2023Review(s) Completed, Editorial Evaluation Pending
03 Jul 2023Editorial Decision: Accept